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

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  1. /*

  2.  * Carla Plugin Host

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

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaDefines.h"

  19. 

  20. #ifdef BUILD_BRIDGE

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

  22. #endif

  23. 

  24. #include "CarlaEngineInternal.hpp"

  25. #include "CarlaPlugin.hpp"

  26. 

  27. #include "CarlaBackendUtils.hpp"

  28. #include "CarlaBase64Utils.hpp"

  29. #include "CarlaBinaryUtils.hpp"

  30. #include "CarlaMathUtils.hpp"

  31. #include "CarlaStateUtils.hpp"

  32. 

  33. #include "CarlaExternalUI.hpp"

  34. #include "CarlaHost.h"

  35. #include "CarlaNative.hpp"

  36. 

  37. #include "juce_audio_basics.h"

  38. 

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

  40. # include "juce_gui_basics.h"

  41. #else

  42. namespace juce {

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

  44. } // namespace juce

  45. #endif

  46. 

  47. using juce::File;

  48. using juce::FloatVectorOperations;

  49. using juce::MemoryOutputStream;

  50. using juce::ScopedPointer;

  51. using juce::String;

  52. using juce::XmlDocument;

  53. using juce::XmlElement;

  54. 

  55. static bool gNeedsJuceHandling = false;

  56. static int  gJuceReferenceCounter = 0;

  57. 

  58. CARLA_BACKEND_START_NAMESPACE

  59. 

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

  61. 

  62. class CarlaEngineNativeUI : public CarlaExternalUI

  63. {

  64. public:

  65.     CarlaEngineNativeUI(CarlaEngine* const engine)

  66.         : fEngine(engine)

  67.     {

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

  69.     }

  70. 

  71.     ~CarlaEngineNativeUI() noexcept override

  72.     {

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

  74.     }

  75. 

  76. protected:

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

  78.     {

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

  80.             return true;

  81. 

  82.         bool ok = true;

  83. 

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

  85.         {

  86.             uint32_t option;

  87.             int32_t value;

  88.             const char* valueStr = nullptr;

  89. 

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

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

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

  93. 

  94.             try {

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

  96.             } CARLA_SAFE_EXCEPTION("setOption");

  97. 

  98.             if (valueStr != nullptr)

  99.                 delete[] valueStr;

  100.         }

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

  102.         {

  103.             const char* filename;

  104. 

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

  106. 

  107.             try {

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

  109.             } CARLA_SAFE_EXCEPTION("loadFile");

  110. 

  111.             delete[] filename;

  112.         }

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

  114.         {

  115.             const char* filename;

  116. 

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

  118. 

  119.             try {

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

  121.             } CARLA_SAFE_EXCEPTION("loadProject");

  122. 

  123.             delete[] filename;

  124.         }

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

  126.         {

  127.             const char* filename;

  128. 

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

  130. 

  131.             try {

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

  133.             } CARLA_SAFE_EXCEPTION("saveProject");

  134. 

  135.             delete[] filename;

  136.         }

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

  138.         {

  139.             uint32_t groupA, portA, groupB, portB;

  140. 

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

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

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

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

  145. 

  146.             try {

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

  148.             } CARLA_SAFE_EXCEPTION("patchbayConnect");

  149.         }

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

  151.         {

  152.             uint32_t connectionId;

  153. 

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

  155. 

  156.             try {

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

  158.             } CARLA_SAFE_EXCEPTION("patchbayDisconnect");

  159.         }

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

  161.         {

  162.             try {

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

  164.             } CARLA_SAFE_EXCEPTION("patchbayRefresh");

  165.         }

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

  167.         {

  168.             fEngine->transportPlay();

  169.         }

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

  171.         {

  172.             fEngine->transportPause();

  173.         }

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

  175.         {

  176.             uint64_t frame;

  177. 

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

  179. 

  180.             fEngine->transportRelocate(frame);

  181.         }

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

  183.         {

  184.             uint32_t btype, ptype;

  185.             const char* filename = nullptr;

  186.             const char* name;

  187.             const char* label;

  188.             int64_t uniqueId;

  189.             uint options;

  190. 

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

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

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

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

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

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

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

  198. 

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

  200.             {

  201.                 delete[] filename;

  202.                 filename = nullptr;

  203.             }

  204. 

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

  206.             {

  207.                 delete[] name;

  208.                 name = nullptr;

  209.             }

  210. 

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

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

  213. 

  214.             if (filename != nullptr)

  215.                 delete[] filename;

  216.             if (name != nullptr)

  217.                 delete[] name;

  218.             delete[] label;

  219.         }

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

  221.         {

  222.             uint32_t pluginId;

  223. 

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

  225. 

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

  227.         }

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

  229.         {

  230.             ok = fEngine->removeAllPlugins();

  231.         }

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

  233.         {

  234.             uint32_t pluginId;

  235.             const char* newName;

  236. 

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

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

  239. 

  240.             // TODO

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

  242. 

  243.             delete[] newName;

  244.         }

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

  246.         {

  247.             uint32_t pluginId;

  248. 

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

  250. 

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

  252.         }

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

  254.         {

  255.             uint32_t pluginId;

  256. 

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

  258. 

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

  260.         }

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

  262.         {

  263.             uint32_t pluginIdA, pluginIdB;

  264. 

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

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

  267. 

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

  269.         }

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

  271.         {

  272.             uint32_t pluginId;

  273.             const char* filename;

  274. 

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

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

  277. 

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

  279.                 plugin->loadStateFromFile(filename);

  280. 

  281.             delete[] filename;

  282.         }

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

  284.         {

  285.             uint32_t pluginId;

  286.             const char* filename;

  287. 

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

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

  290. 

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

  292.                 plugin->saveStateToFile(filename);

  293. 

  294.             delete[] filename;

  295.         }

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

  297.         {

  298.             uint32_t pluginId, option;

  299.             bool yesNo;

  300. 

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

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

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

  304. 

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

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

  307.         }

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

  309.         {

  310.             uint32_t pluginId;

  311.             bool onOff;

  312. 

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

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

  315. 

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

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

  318.         }

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

  320.         {

  321.             uint32_t pluginId;

  322.             float value;

  323. 

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

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

  326. 

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

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

  329.         }

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

  331.         {

  332.             uint32_t pluginId;

  333.             float value;

  334. 

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

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

  337. 

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

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

  340.         }

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

  342.         {

  343.             uint32_t pluginId;

  344.             float value;

  345. 

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

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

  348. 

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

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

  351.         }

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

  353.         {

  354.             uint32_t pluginId;

  355.             float value;

  356. 

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

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

  359. 

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

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

  362.         }

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

  364.         {

  365.             uint32_t pluginId;

  366.             float value;

  367. 

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

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

  370. 

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

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

  373.         }

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

  375.         {

  376.             uint32_t pluginId;

  377.             int32_t channel;

  378. 

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

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

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

  382. 

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

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

  385.         }

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

  387.         {

  388.             uint32_t pluginId, parameterId;

  389.             float value;

  390. 

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

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

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

  394. 

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

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

  397.         }

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

  399.         {

  400.             uint32_t pluginId, parameterId, channel;

  401. 

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

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

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

  405.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  406. 

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

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

  409.         }

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

  411.         {

  412.             uint32_t pluginId, parameterId;

  413.             int32_t cc;

  414. 

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

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

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

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

  419. 

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

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

  422.         }

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

  424.         {

  425.             uint32_t pluginId;

  426.             int32_t index;

  427. 

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

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

  430. 

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

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

  433.         }

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

  435.         {

  436.             uint32_t pluginId;

  437.             int32_t index;

  438. 

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

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

  441. 

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

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

  444.         }

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

  446.         {

  447.             uint32_t pluginId;

  448.             const char* type;

  449.             const char* key;

  450.             const char* value;

  451. 

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

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

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

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

  456. 

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

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

  459. 

  460.             delete[] type;

  461.             delete[] key;

  462.             delete[] value;

  463.         }

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

  465.         {

  466.             uint32_t pluginId;

  467.             const char* cdata;

  468. 

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

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

  471. 

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

  473.             {

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

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

  476.             }

  477. 

  478.             delete[] cdata;

  479.         }

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

  481.         {

  482.             uint32_t pluginId;

  483. 

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

  485. 

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

  487.                 plugin->prepareForSave();

  488.         }

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

  490.         {

  491.             uint32_t pluginId;

  492. 

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

  494. 

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

  496.                 plugin->resetParameters();

  497.         }

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

  499.         {

  500.             uint32_t pluginId;

  501. 

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

  503. 

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

  505.                 plugin->randomizeParameters();

  506.         }

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

  508.         {

  509.             uint32_t pluginId, channel, note, velocity;

  510. 

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

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

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

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

  515.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  516.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  517.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  518. 

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

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

  521.         }

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

  523.         {

  524.             uint32_t pluginId;

  525.             bool yesNo;

  526. 

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

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

  529. 

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

  531.                 plugin->showCustomUI(yesNo);

  532.         }

  533.         else

  534.         {

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

  536.             return false;

  537.         }

  538. 

  539.         if (! ok)

  540.         {

  541.             const CarlaMutexLocker cml(getPipeLock());

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

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

  544.             flushMessages();

  545.         }

  546. 

  547.         return true;

  548.     }

  549. 

  550. private:

  551.     CarlaEngine* const fEngine;

  552. 

  553.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  554. };

  555. 

  556. // -----------------------------------------------------------------------

  557. 

  558. class CarlaEngineNative : public CarlaEngine

  559. {

  560. public:

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

  562.         : CarlaEngine(),

  563.           pHost(host),

  564.           kIsPatchbay(isPatchbay),

  565.           fIsActive(false),

  566.           fIsRunning(false),

  567.           fUiServer(this),

  568.           fOptionsForced(false)

  569.     {

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

  571. 

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

  573. 

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

  575.             juce::initialiseJuce_GUI();

  576. 

  577.         carla_zeroChars(fTmpBuf, STR_MAX+1);

  578. 

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

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

  581. 

  582.         if (outChan == 0)

  583.             outChan = inChan;

  584. 

  585.         // set-up engine

  586.         if (kIsPatchbay)

  587.         {

  588.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  589.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  590.             pData->options.forceStereo         = false;

  591.             pData->options.preferPluginBridges = false;

  592.             pData->options.preferUiBridges     = false;

  593.             init("Carla-Patchbay");

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

  595.         }

  596.         else

  597.         {

  598.             CARLA_SAFE_ASSERT(inChan == 2);

  599.             CARLA_SAFE_ASSERT(outChan == 2);

  600.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  601.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  602.             pData->options.forceStereo         = true;

  603.             pData->options.preferPluginBridges = false;

  604.             pData->options.preferUiBridges     = false;

  605.             init("Carla-Rack");

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

  607.         }

  608. 

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

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

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

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

  613. 

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

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

  616. 

  617.         setCallback(_ui_server_callback, this);

  618.     }

  619. 

  620.     ~CarlaEngineNative() override

  621.     {

  622.         CARLA_SAFE_ASSERT(! fIsActive);

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

  624. 

  625.         pData->aboutToClose = true;

  626.         fIsRunning = false;

  627. 

  628.         removeAllPlugins();

  629.         //runPendingRtEvents();

  630.         close();

  631. 

  632.         pData->graph.destroy();

  633. 

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

  635.             juce::shutdownJuce_GUI();

  636. 

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

  638.     }

  639. 

  640. protected:

  641.     // -------------------------------------

  642.     // CarlaEngine virtual calls

  643. 

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

  645.     {

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

  647. 

  648.         fIsRunning = true;

  649. 

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

  651.         {

  652.             close();

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

  654.             return false;

  655.         }

  656. 

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

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

  659. 

  660.         return true;

  661.     }

  662. 

  663.     bool close() override

  664.     {

  665.         fIsRunning = false;

  666.         CarlaEngine::close();

  667.         return true;

  668.     }

  669. 

  670.     bool isRunning() const noexcept override

  671.     {

  672.         return fIsRunning;

  673.     }

  674. 

  675.     bool isOffline() const noexcept override

  676.     {

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

  678.     }

  679. 

  680.     EngineType getType() const noexcept override

  681.     {

  682.         return kEngineTypePlugin;

  683.     }

  684. 

  685.     const char* getCurrentDriverName() const noexcept override

  686.     {

  687.         return "Plugin";

  688.     }

  689. 

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

  691.     {

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

  693. 

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

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

  696.     }

  697. 

  698.     // -------------------------------------------------------------------

  699. 

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

  701.     {

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

  703.         {

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

  705.             return retName;

  706.         }

  707. 

  708.         return nullptr;

  709.     }

  710. 

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

  712. 

  713.     void bufferSizeChanged(const uint32_t newBufferSize)

  714.     {

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

  716.             return;

  717. 

  718.         {

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

  720. 

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

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

  723.             fUiServer.writeMessage(fTmpBuf);

  724.             fUiServer.flushMessages();

  725.         }

  726. 

  727.         pData->bufferSize = newBufferSize;

  728.         CarlaEngine::bufferSizeChanged(newBufferSize);

  729.     }

  730. 

  731.     void sampleRateChanged(const double newSampleRate)

  732.     {

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

  734.             return;

  735. 

  736.         {

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

  738.             const ScopedLocale csl;

  739. 

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

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

  742.             fUiServer.writeMessage(fTmpBuf);

  743.             fUiServer.flushMessages();

  744.         }

  745. 

  746.         pData->sampleRate = newSampleRate;

  747.         CarlaEngine::sampleRateChanged(newSampleRate);

  748.     }

  749. 

  750.     // -------------------------------------------------------------------

  751. 

  752.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  753.     {

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

  755. 

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

  757. 

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

  759.         fUiServer.writeMessage(fTmpBuf);

  760. 

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

  762.         fUiServer.writeMessage(fTmpBuf);

  763. 

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

  765.         {

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

  767.             fUiServer.writeAndFixMessage(fTmpBuf);

  768.         }

  769.         else

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

  771. 

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

  773.         {

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

  775.             fUiServer.writeAndFixMessage(fTmpBuf);

  776.         }

  777.         else

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

  779. 

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

  781.         {

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

  783.             fUiServer.writeAndFixMessage(fTmpBuf);

  784.         }

  785.         else

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

  787. 

  788.         plugin->getRealName(fTmpBuf);

  789.         fUiServer.writeAndFixMessage(fTmpBuf);

  790. 

  791.         plugin->getLabel(fTmpBuf);

  792.         fUiServer.writeAndFixMessage(fTmpBuf);

  793. 

  794.         plugin->getMaker(fTmpBuf);

  795.         fUiServer.writeAndFixMessage(fTmpBuf);

  796. 

  797.         plugin->getCopyright(fTmpBuf);

  798.         fUiServer.writeAndFixMessage(fTmpBuf);

  799. 

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

  801.         fUiServer.writeMessage(fTmpBuf);

  802. 

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

  804.         fUiServer.writeMessage(fTmpBuf);

  805. 

  806.         fUiServer.flushMessages();

  807.     }

  808. 

  809.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  810.     {

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

  812.         const ScopedLocale csl;

  813. 

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

  815. 

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

  817.         {

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

  819.             fUiServer.writeMessage(fTmpBuf);

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

  821.             fUiServer.writeMessage(fTmpBuf);

  822.             fUiServer.flushMessages();

  823.         }

  824. 

  825.         uint32_t ins, outs, count;

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

  827.         count = plugin->getParameterCount();

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

  829.         fUiServer.writeMessage(fTmpBuf);

  830. 

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

  832.         {

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

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

  835. 

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

  837.             fUiServer.writeMessage(fTmpBuf);

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

  839.             fUiServer.writeMessage(fTmpBuf);

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

  841.             fUiServer.writeAndFixMessage(fTmpBuf);

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

  843.             fUiServer.writeAndFixMessage(fTmpBuf);

  844. 

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

  846.             fUiServer.writeMessage(fTmpBuf);

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

  848.             fUiServer.writeMessage(fTmpBuf);

  849. 

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

  851.             fUiServer.writeMessage(fTmpBuf);

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

  853.             fUiServer.writeMessage(fTmpBuf);

  854.         }

  855. 

  856.         fUiServer.flushMessages();

  857.     }

  858. 

  859.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  860.     {

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

  862. 

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

  864. 

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

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

  867.         fUiServer.writeMessage(fTmpBuf);

  868. 

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

  870.         {

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

  872.             fUiServer.writeMessage(fTmpBuf);

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

  874.             fUiServer.writeAndFixMessage(fTmpBuf);

  875.         }

  876. 

  877.         fUiServer.flushMessages();

  878. 

  879.         count = plugin->getMidiProgramCount();

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

  881.         fUiServer.writeMessage(fTmpBuf);

  882. 

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

  884.         {

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

  886.             fUiServer.writeMessage(fTmpBuf);

  887. 

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

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

  890.             fUiServer.writeMessage(fTmpBuf);

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

  892.             fUiServer.writeAndFixMessage(fTmpBuf);

  893.         }

  894. 

  895.         fUiServer.flushMessages();

  896.     }

  897. 

  898.     void uiServerSendPluginProperties(CarlaPlugin* const plugin)

  899.     {

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

  901. 

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

  903. 

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

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

  906.         fUiServer.writeMessage(fTmpBuf);

  907. 

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

  909.         {

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

  911.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  912. 

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

  914.                 continue;

  915. 

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

  917.             fUiServer.writeMessage(fTmpBuf);

  918. 

  919.             fUiServer.writeAndFixMessage(customData.type);

  920.             fUiServer.writeAndFixMessage(customData.key);

  921.             fUiServer.writeAndFixMessage(customData.value);

  922.         }

  923. 

  924.         fUiServer.flushMessages();

  925.     }

  926. 

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

  928.     {

  929.         if (! fIsRunning)

  930.             return;

  931.         if (! fUiServer.isPipeRunning())

  932.             return;

  933. 

  934.         CarlaPlugin* plugin;

  935. 

  936.         switch (action)

  937.         {

  938.         case ENGINE_CALLBACK_UPDATE:

  939.             plugin = getPlugin(pluginId);

  940. 

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

  942.             {

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

  944.                 uiServerSendPluginProperties(plugin);

  945.             }

  946.             break;

  947. 

  948.         case ENGINE_CALLBACK_RELOAD_INFO:

  949.             plugin = getPlugin(pluginId);

  950. 

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

  952.             {

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

  954.                 uiServerSendPluginInfo(plugin);

  955.             }

  956.             break;

  957. 

  958.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  959.             plugin = getPlugin(pluginId);

  960. 

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

  962.             {

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

  964.                 uiServerSendPluginParameters(plugin);

  965.             }

  966.             break;

  967. 

  968.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  969.             plugin = getPlugin(pluginId);

  970. 

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

  972.             {

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

  974.                 uiServerSendPluginPrograms(plugin);

  975.             }

  976.             break;

  977. 

  978.         case ENGINE_CALLBACK_RELOAD_ALL:

  979.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  980.             plugin = getPlugin(pluginId);

  981. 

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

  983.             {

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

  985.                 uiServerSendPluginInfo(plugin);

  986.                 uiServerSendPluginParameters(plugin);

  987.                 uiServerSendPluginPrograms(plugin);

  988.                 uiServerSendPluginProperties(plugin);

  989.             }

  990.             break;

  991. 

  992.         default:

  993.             break;

  994.         }

  995. 

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

  997.         const ScopedLocale csl;

  998. 

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

  1000.         fUiServer.writeMessage(fTmpBuf);

  1001. 

  1002.         std::sprintf(fTmpBuf, "%u\n", pluginId);

  1003.         fUiServer.writeMessage(fTmpBuf);

  1004. 

  1005.         std::sprintf(fTmpBuf, "%i\n", value1);

  1006.         fUiServer.writeMessage(fTmpBuf);

  1007. 

  1008.         std::sprintf(fTmpBuf, "%i\n", value2);

  1009.         fUiServer.writeMessage(fTmpBuf);

  1010. 

  1011.         std::sprintf(fTmpBuf, "%f\n", value3);

  1012.         fUiServer.writeMessage(fTmpBuf);

  1013. 

  1014.         fUiServer.writeAndFixMessage(valueStr != nullptr ? valueStr : "");

  1015. 

  1016.         fUiServer.flushMessages();

  1017.     }

  1018. 

  1019.     void uiServerInfo()

  1020.     {

  1021.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1022.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1023. 

  1024.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1025. 

  1026. #ifdef HAVE_LIBLO

  1027.         fUiServer.writeAndFixMessage("osc-urls");

  1028.         fUiServer.writeAndFixMessage(pData->osc.getServerPathTCP());

  1029.         fUiServer.writeAndFixMessage(pData->osc.getServerPathUDP());

  1030. #endif

  1031. 

  1032.         fUiServer.writeAndFixMessage("max-plugin-number");

  1033.         std::sprintf(fTmpBuf, "%i\n", pData->maxPluginNumber);

  1034.         fUiServer.writeMessage(fTmpBuf);

  1035. 

  1036.         fUiServer.writeAndFixMessage("buffer-size");

  1037.         std::sprintf(fTmpBuf, "%i\n", pData->bufferSize);

  1038.         fUiServer.writeMessage(fTmpBuf);

  1039. 

  1040.         const ScopedLocale csl;

  1041. 

  1042.         fUiServer.writeAndFixMessage("sample-rate");

  1043.         std::sprintf(fTmpBuf, "%f\n", pData->sampleRate);

  1044.         fUiServer.writeMessage(fTmpBuf);

  1045. 

  1046.         fUiServer.flushMessages();

  1047.     }

  1048. 

  1049.     void uiServerOptions()

  1050.     {

  1051.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1052.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1053. 

  1054.         const EngineOptions& options(pData->options);

  1055.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1056. 

  1057.         const char* const optionsForcedStr(fOptionsForced ? "true\n" : "false\n");

  1058.         const std::size_t optionsForcedStrSize(fOptionsForced ? 5 : 6);

  1059. 

  1060.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PROCESS_MODE);

  1061.         fUiServer.writeMessage(fTmpBuf);

  1062.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1063.         std::sprintf(fTmpBuf, "%i\n", options.processMode);

  1064.         fUiServer.writeMessage(fTmpBuf);

  1065.         fUiServer.flushMessages();

  1066. 

  1067.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_TRANSPORT_MODE);

  1068.         fUiServer.writeMessage(fTmpBuf);

  1069.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1070.         std::sprintf(fTmpBuf, "%i\n", options.transportMode);

  1071.         fUiServer.writeMessage(fTmpBuf);

  1072.         fUiServer.flushMessages();

  1073. 

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

  1075.         fUiServer.writeMessage(fTmpBuf);

  1076.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

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

  1078.         fUiServer.flushMessages();

  1079. 

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

  1081.         fUiServer.writeMessage(fTmpBuf);

  1082.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

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

  1084.         fUiServer.flushMessages();

  1085. 

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

  1087.         fUiServer.writeMessage(fTmpBuf);

  1088.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

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

  1090.         fUiServer.flushMessages();

  1091. 

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

  1093.         fUiServer.writeMessage(fTmpBuf);

  1094.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

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

  1096.         fUiServer.flushMessages();

  1097. 

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

  1099.         fUiServer.writeMessage(fTmpBuf);

  1100.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1101.         std::sprintf(fTmpBuf, "%i\n", options.maxParameters);

  1102.         fUiServer.writeMessage(fTmpBuf);

  1103.         fUiServer.flushMessages();

  1104. 

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

  1106.         fUiServer.writeMessage(fTmpBuf);

  1107.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1108.         std::sprintf(fTmpBuf, "%i\n", options.uiBridgesTimeout);

  1109.         fUiServer.writeMessage(fTmpBuf);

  1110.         fUiServer.flushMessages();

  1111. 

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

  1113.         fUiServer.writeMessage(fTmpBuf);

  1114.         fUiServer.writeMessage("true\n", 5);

  1115.         std::sprintf(fTmpBuf, "%s\n", options.binaryDir);

  1116.         fUiServer.writeMessage(fTmpBuf);

  1117.         fUiServer.flushMessages();

  1118. 

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

  1120.         fUiServer.writeMessage(fTmpBuf);

  1121.         fUiServer.writeMessage("true\n", 5);

  1122.         std::sprintf(fTmpBuf, "%s\n", options.resourceDir);

  1123.         fUiServer.writeMessage(fTmpBuf);

  1124.         fUiServer.flushMessages();

  1125.     }

  1126. 

  1127.     // -------------------------------------------------------------------

  1128.     // Plugin parameter calls

  1129. 

  1130.     uint32_t getParameterCount() const

  1131.     {

  1132.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1133.             return plugin->getParameterCount();

  1134. 

  1135.         return 0;

  1136.     }

  1137. 

  1138.     const NativeParameter* getParameterInfo(const uint32_t index) const

  1139.     {

  1140.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1141.         {

  1142.             if (index < plugin->getParameterCount())

  1143.             {

  1144.                 static NativeParameter param;

  1145.                 static char strBufName[STR_MAX+1];

  1146.                 static char strBufUnit[STR_MAX+1];

  1147. 

  1148.                 const ParameterData& paramData(plugin->getParameterData(index));

  1149.                 const ParameterRanges& paramRanges(plugin->getParameterRanges(index));

  1150. 

  1151.                 plugin->getParameterName(index, strBufName);

  1152.                 plugin->getParameterUnit(index, strBufUnit);

  1153. 

  1154.                 uint hints = 0x0;

  1155. 

  1156.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  1157.                     hints |= NATIVE_PARAMETER_IS_BOOLEAN;

  1158.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  1159.                     hints |= NATIVE_PARAMETER_IS_INTEGER;

  1160.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  1161.                     hints |= NATIVE_PARAMETER_IS_LOGARITHMIC;

  1162.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  1163.                     hints |= NATIVE_PARAMETER_IS_AUTOMABLE;

  1164.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  1165.                     hints |= NATIVE_PARAMETER_USES_SAMPLE_RATE;

  1166.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  1167.                     hints |= NATIVE_PARAMETER_USES_SCALEPOINTS;

  1168. 

  1169.                 if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)

  1170.                 {

  1171.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  1172.                         hints |= NATIVE_PARAMETER_IS_ENABLED;

  1173.                     if (paramData.type == PARAMETER_OUTPUT)

  1174.                         hints |= NATIVE_PARAMETER_IS_OUTPUT;

  1175.                 }

  1176. 

  1177.                 param.hints = static_cast<NativeParameterHints>(hints);

  1178.                 param.name  = strBufName;

  1179.                 param.unit  = strBufUnit;

  1180.                 param.ranges.def = paramRanges.def;

  1181.                 param.ranges.min = paramRanges.min;

  1182.                 param.ranges.max = paramRanges.max;

  1183.                 param.ranges.step = paramRanges.step;

  1184.                 param.ranges.stepSmall = paramRanges.stepSmall;

  1185.                 param.ranges.stepLarge = paramRanges.stepLarge;

  1186.                 param.scalePointCount = 0; // TODO

  1187.                 param.scalePoints = nullptr;

  1188. 

  1189.                 return &param;

  1190.             }

  1191.         }

  1192. 

  1193.         return nullptr;

  1194.     }

  1195. 

  1196.     float getParameterValue(const uint32_t index) const

  1197.     {

  1198.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1199.         {

  1200.             if (index < plugin->getParameterCount())

  1201.                 return plugin->getParameterValue(index);

  1202.         }

  1203. 

  1204.         return 0.0f;

  1205.     }

  1206. 

  1207.     // -------------------------------------------------------------------

  1208.     // Plugin midi-program calls

  1209. 

  1210.     uint32_t getMidiProgramCount() const

  1211.     {

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

  1213.             return plugin->getMidiProgramCount();

  1214. 

  1215.         return 0;

  1216.     }

  1217. 

  1218.     const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const

  1219.     {

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

  1221.         {

  1222.             if (index < plugin->getMidiProgramCount())

  1223.             {

  1224.                 static NativeMidiProgram midiProg;

  1225. 

  1226.                 {

  1227.                     const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));

  1228. 

  1229.                     midiProg.bank    = midiProgData.bank;

  1230.                     midiProg.program = midiProgData.program;

  1231.                     midiProg.name    = midiProgData.name;

  1232.                 }

  1233. 

  1234.                 return &midiProg;

  1235.             }

  1236.         }

  1237. 

  1238.         return nullptr;

  1239.     }

  1240. 

  1241.     // -------------------------------------------------------------------

  1242.     // Plugin state calls

  1243. 

  1244.     void setParameterValue(const uint32_t index, const float value)

  1245.     {

  1246.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1247.         {

  1248.             if (index < plugin->getParameterCount())

  1249.                 plugin->setParameterValue(index, value, false, false, false);

  1250.         }

  1251.     }

  1252. 

  1253.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1254.     {

  1255.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1256.             plugin->setMidiProgramById(bank, program, false, false, false);

  1257.     }

  1258. 

  1259.     // -------------------------------------------------------------------

  1260.     // Plugin process calls

  1261. 

  1262.     void activate()

  1263.     {

  1264. #if 0

  1265.         for (uint i=0; i < pData->curPluginCount; ++i)

  1266.         {

  1267.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1268. 

  1269.             if (plugin == nullptr || ! plugin->isEnabled())

  1270.                 continue;

  1271. 

  1272.             plugin->setActive(true, true, false);

  1273.         }

  1274. #endif

  1275.         fIsActive = true;

  1276.     }

  1277. 

  1278.     void deactivate()

  1279.     {

  1280.         fIsActive = false;

  1281. #if 0

  1282.         for (uint i=0; i < pData->curPluginCount; ++i)

  1283.         {

  1284.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1285. 

  1286.             if (plugin == nullptr || ! plugin->isEnabled())

  1287.                 continue;

  1288. 

  1289.             plugin->setActive(false, true, false);

  1290.         }

  1291. #endif

  1292. 

  1293.         // just in case

  1294.         //runPendingRtEvents();

  1295.     }

  1296. 

  1297.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1298.     {

  1299.         const PendingRtEventsRunner prt(this);

  1300. 

  1301.         // ---------------------------------------------------------------

  1302.         // Time Info

  1303. 

  1304.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1305. 

  1306.         pData->timeInfo.playing = timeInfo->playing;

  1307.         pData->timeInfo.frame   = timeInfo->frame;

  1308.         pData->timeInfo.usecs   = timeInfo->usecs;

  1309.         pData->timeInfo.valid   = 0x0;

  1310. 

  1311.         if (timeInfo->bbt.valid)

  1312.         {

  1313.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1314. 

  1315.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1316.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1317.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1318.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1319. 

  1320.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1321.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1322. 

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

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

  1325.         }

  1326. 

  1327.         // ---------------------------------------------------------------

  1328.         // Do nothing if no plugins and rack mode

  1329. 

  1330.         if (pData->curPluginCount == 0 && ! kIsPatchbay)

  1331.         {

  1332.             FloatVectorOperations::copy(outBuffer[0], inBuffer[0], static_cast<int>(frames));

  1333.             FloatVectorOperations::copy(outBuffer[1], inBuffer[1], static_cast<int>(frames));

  1334.             return;

  1335.         }

  1336. 

  1337.         // ---------------------------------------------------------------

  1338.         // initialize events

  1339. 

  1340.         carla_zeroStructs(pData->events.in,  kMaxEngineEventInternalCount);

  1341.         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1342. 

  1343.         // ---------------------------------------------------------------

  1344.         // events input (before processing)

  1345. 

  1346.         {

  1347.             uint32_t engineEventIndex = 0;

  1348. 

  1349.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1350.             {

  1351.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1352.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1353. 

  1354.                 engineEvent.time = midiEvent.time;

  1355.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data, 0);

  1356. 

  1357.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1358.                     break;

  1359.             }

  1360.         }

  1361. 

  1362.         if (kIsPatchbay)

  1363.         {

  1364.             // -----------------------------------------------------------

  1365.             // process

  1366. 

  1367.             pData->graph.process(pData, inBuffer, outBuffer, frames);

  1368.         }

  1369.         else

  1370.         {

  1371.             // -----------------------------------------------------------

  1372.             // create audio buffers

  1373. 

  1374.             const float* inBuf[2]  = {  inBuffer[0],  inBuffer[1] };

  1375.             /* */ float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1376. 

  1377.             // -----------------------------------------------------------

  1378.             // process

  1379. 

  1380.             pData->graph.processRack(pData, inBuf, outBuf, frames);

  1381.         }

  1382. 

  1383.         // ---------------------------------------------------------------

  1384.         // events output (after processing)

  1385. 

  1386.         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1387. 

  1388.         {

  1389.             NativeMidiEvent midiEvent;

  1390. 

  1391.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1392.             {

  1393.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1394. 

  1395.                 if (engineEvent.type == kEngineEventTypeNull)

  1396.                     break;

  1397. 

  1398.                 midiEvent.time = engineEvent.time;

  1399. 

  1400.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1401.                 {

  1402.                     midiEvent.port = 0;

  1403.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1404.                 }

  1405.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1406.                 {

  1407.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1408.                         continue;

  1409. 

  1410.                     midiEvent.port = engineEvent.midi.port;

  1411.                     midiEvent.size = engineEvent.midi.size;

  1412. 

  1413.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1414. 

  1415.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1416.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1417.                 }

  1418.                 else

  1419.                 {

  1420.                     carla_stderr("Unknown event type...");

  1421.                     continue;

  1422.                 }

  1423. 

  1424.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1425.             }

  1426.         }

  1427.     }

  1428. 

  1429.     // -------------------------------------------------------------------

  1430.     // Plugin UI calls

  1431. 

  1432.     void uiShow(const bool show)

  1433.     {

  1434.         if (show)

  1435.         {

  1436.             if (fUiServer.isPipeRunning())

  1437.             {

  1438.                 fUiServer.writeFocusMessage();

  1439.                 return;

  1440.             }

  1441. 

  1442.             CarlaString path(pHost->resourceDir);

  1443. 

  1444.             if (kIsPatchbay)

  1445.                 path += CARLA_OS_SEP_STR "carla-plugin-patchbay";

  1446.             else

  1447.                 path += CARLA_OS_SEP_STR "carla-plugin";

  1448. // #ifdef CARLA_OS_WIN

  1449. //             path += ".exe";

  1450. // #endif

  1451.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1452. 

  1453.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1454. 

  1455.             if (! fUiServer.startPipeServer(false))

  1456.             {

  1457.                 pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1458.                 return;

  1459.             }

  1460. 

  1461.             uiServerInfo();

  1462.             uiServerOptions();

  1463.             uiServerCallback(ENGINE_CALLBACK_ENGINE_STARTED, 0, pData->options.processMode, pData->options.transportMode, 0.0f, "Plugin");

  1464. 

  1465.             fUiServer.writeShowMessage();

  1466. 

  1467.             for (uint i=0; i < pData->curPluginCount; ++i)

  1468.             {

  1469.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1470. 

  1471.                 if (plugin != nullptr && plugin->isEnabled())

  1472.                 {

  1473.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1474.                 }

  1475.             }

  1476. 

  1477.             if (kIsPatchbay)

  1478.                 patchbayRefresh(false);

  1479.         }

  1480.         else

  1481.         {

  1482.             fUiServer.stopPipeServer(2000);

  1483. 

  1484.             // hide all custom uis

  1485.             for (uint i=0; i < pData->curPluginCount; ++i)

  1486.             {

  1487.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1488. 

  1489.                 if (plugin != nullptr && plugin->isEnabled())

  1490.                 {

  1491.                     if (plugin->getHints() & PLUGIN_HAS_CUSTOM_UI)

  1492.                     {

  1493.                         try {

  1494.                             plugin->showCustomUI(false);

  1495.                         } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin showCustomUI (hide)");

  1496.                     }

  1497.                 }

  1498.             }

  1499.         }

  1500.     }

  1501. 

  1502.     void uiIdle()

  1503.     {

  1504.         for (uint i=0; i < pData->curPluginCount; ++i)

  1505.         {

  1506.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1507. 

  1508.             if (plugin != nullptr && plugin->isEnabled())

  1509.             {

  1510.                 if (plugin->getHints() & PLUGIN_HAS_CUSTOM_UI)

  1511.                 {

  1512.                     try {

  1513.                         plugin->uiIdle();

  1514.                     } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin uiIdle");

  1515.                 }

  1516.             }

  1517.         }

  1518. 

  1519.         if (fUiServer.isPipeRunning())

  1520.         {

  1521.             fUiServer.idlePipe();

  1522. 

  1523.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1524. #ifndef CARLA_OS_WIN

  1525.             const EngineTimeInfo& timeInfo(pData->timeInfo);

  1526.             const ScopedLocale csl;

  1527. 

  1528.             // send transport

  1529.             fUiServer.writeAndFixMessage("transport");

  1530.             fUiServer.writeMessage(timeInfo.playing ? "true\n" : "false\n");

  1531. 

  1532.             if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1533.             {

  1534.                 std::sprintf(fTmpBuf, P_UINT64 ":%i:%i:%i\n", timeInfo.frame, timeInfo.bbt.bar, timeInfo.bbt.beat, timeInfo.bbt.tick);

  1535.                 fUiServer.writeMessage(fTmpBuf);

  1536.                 std::sprintf(fTmpBuf, "%f\n", timeInfo.bbt.beatsPerMinute);

  1537.                 fUiServer.writeMessage(fTmpBuf);

  1538.             }

  1539.             else

  1540.             {

  1541.                 std::sprintf(fTmpBuf, P_UINT64 ":0:0:0\n", timeInfo.frame);

  1542.                 fUiServer.writeMessage(fTmpBuf);

  1543.                 fUiServer.writeMessage("0.0\n");

  1544.             }

  1545. 

  1546.             fUiServer.flushMessages();

  1547. #endif

  1548. 

  1549.             // send peaks and param outputs for all plugins

  1550.             for (uint i=0; i < pData->curPluginCount; ++i)

  1551.             {

  1552.                 const EnginePluginData& plugData(pData->plugins[i]);

  1553.                 const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1554. 

  1555.                 std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1556.                 fUiServer.writeMessage(fTmpBuf);

  1557. 

  1558.                 std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1559.                 fUiServer.writeMessage(fTmpBuf);

  1560.                 fUiServer.flushMessages();

  1561. 

  1562.                 for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1563.                 {

  1564.                     if (! plugin->isParameterOutput(j))

  1565.                         continue;

  1566. 

  1567.                     std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1568.                     fUiServer.writeMessage(fTmpBuf);

  1569.                     std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1570.                     fUiServer.writeMessage(fTmpBuf);

  1571.                     fUiServer.flushMessages();

  1572.                 }

  1573.             }

  1574.         }

  1575. 

  1576.         switch (fUiServer.getAndResetUiState())

  1577.         {

  1578.         case CarlaExternalUI::UiNone:

  1579.         case CarlaExternalUI::UiShow:

  1580.             break;

  1581.         case CarlaExternalUI::UiCrashed:

  1582.             pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1583.             break;

  1584.         case CarlaExternalUI::UiHide:

  1585.             pHost->ui_closed(pHost->handle);

  1586.             fUiServer.stopPipeServer(1000);

  1587.             break;

  1588.         }

  1589.     }

  1590. 

  1591.     // -------------------------------------------------------------------

  1592.     // Plugin state calls

  1593. 

  1594.     char* getState() const

  1595.     {

  1596.         MemoryOutputStream out;

  1597.         saveProjectInternal(out);

  1598.         return strdup(out.toString().toRawUTF8());

  1599.     }

  1600. 

  1601.     void setState(const char* const data)

  1602.     {

  1603.         // remove all plugins from UI side

  1604.         for (int i=pData->curPluginCount; --i >= 0;)

  1605.             CarlaEngine::callback(ENGINE_CALLBACK_PLUGIN_REMOVED, i, 0, 0, 0.0f, nullptr);

  1606. 

  1607.         // remove all plugins from backend, no lock

  1608.         fIsRunning = false;

  1609.         removeAllPlugins();

  1610.         fIsRunning = true;

  1611. 

  1612.         // stopped during removeAllPlugins()

  1613.         if (! pData->thread.isThreadRunning())

  1614.             pData->thread.startThread();

  1615. 

  1616.         fOptionsForced = true;

  1617.         const String state(data);

  1618.         XmlDocument xml(state);

  1619.         loadProjectInternal(xml);

  1620.     }

  1621. 

  1622.     // -------------------------------------------------------------------

  1623. 

  1624. public:

  1625.     #define handlePtr ((CarlaEngineNative*)handle)

  1626. 

  1627.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1628.     {

  1629.         return new CarlaEngineNative(host, false);

  1630.     }

  1631. 

  1632.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1633.     {

  1634.         return new CarlaEngineNative(host, true);

  1635.     }

  1636. 

  1637.     static NativePluginHandle _instantiatePatchbay3s(const NativeHostDescriptor* host)

  1638.     {

  1639.         return new CarlaEngineNative(host, true, 3, 2);

  1640.     }

  1641. 

  1642.     static NativePluginHandle _instantiatePatchbay16(const NativeHostDescriptor* host)

  1643.     {

  1644.         return new CarlaEngineNative(host, true, 16);

  1645.     }

  1646. 

  1647.     static NativePluginHandle _instantiatePatchbay32(const NativeHostDescriptor* host)

  1648.     {

  1649.         return new CarlaEngineNative(host, true, 32);

  1650.     }

  1651. 

  1652.     static void _cleanup(NativePluginHandle handle)

  1653.     {

  1654.         delete handlePtr;

  1655.     }

  1656. 

  1657.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1658.     {

  1659.         return handlePtr->getParameterCount();

  1660.     }

  1661. 

  1662.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1663.     {

  1664.         return handlePtr->getParameterInfo(index);

  1665.     }

  1666. 

  1667.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1668.     {

  1669.         return handlePtr->getParameterValue(index);

  1670.     }

  1671. 

  1672.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1673.     {

  1674.         return handlePtr->getMidiProgramCount();

  1675.     }

  1676. 

  1677.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1678.     {

  1679.         return handlePtr->getMidiProgramInfo(index);

  1680.     }

  1681. 

  1682.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1683.     {

  1684.         handlePtr->setParameterValue(index, value);

  1685.     }

  1686. 

  1687.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1688.     {

  1689.         handlePtr->setMidiProgram(channel, bank, program);

  1690.     }

  1691. 

  1692.     static void _ui_show(NativePluginHandle handle, bool show)

  1693.     {

  1694.         handlePtr->uiShow(show);

  1695.     }

  1696. 

  1697.     static void _ui_idle(NativePluginHandle handle)

  1698.     {

  1699.         handlePtr->uiIdle();

  1700.     }

  1701. 

  1702.     static void _activate(NativePluginHandle handle)

  1703.     {

  1704.         handlePtr->activate();

  1705.     }

  1706. 

  1707.     static void _deactivate(NativePluginHandle handle)

  1708.     {

  1709.         handlePtr->deactivate();

  1710.     }

  1711. 

  1712.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1713.     {

  1714.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1715.     }

  1716. 

  1717.     static char* _get_state(NativePluginHandle handle)

  1718.     {

  1719.         return handlePtr->getState();

  1720.     }

  1721. 

  1722.     static void _set_state(NativePluginHandle handle, const char* data)

  1723.     {

  1724.         handlePtr->setState(data);

  1725.     }

  1726. 

  1727.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1728.     {

  1729.         switch(opcode)

  1730.         {

  1731.         case NATIVE_PLUGIN_OPCODE_NULL:

  1732.             return 0;

  1733.         case NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1734.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1735.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1736.             return 0;

  1737.         case NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1738.             CARLA_SAFE_ASSERT_RETURN(opt > 0.0, 0);

  1739.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1740.             return 0;

  1741.         case NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED:

  1742.             handlePtr->offlineModeChanged(value != 0);

  1743.             return 0;

  1744.         case NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED:

  1745.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1746.             return 0;

  1747.         }

  1748. 

  1749.         return 0;

  1750. 

  1751.         // unused

  1752.         (void)index;

  1753.         (void)ptr;

  1754.     }

  1755. 

  1756.     // -------------------------------------------------------------------

  1757. 

  1758.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1759.     {

  1760.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1761.     }

  1762. 

  1763.     // -------------------------------------------------------------------

  1764. 

  1765.     #undef handlePtr

  1766. 

  1767. private:

  1768.     const NativeHostDescriptor* const pHost;

  1769. 

  1770.     const bool kIsPatchbay; // rack if false

  1771.     bool fIsActive, fIsRunning;

  1772.     CarlaEngineNativeUI fUiServer;

  1773. 

  1774.     bool fOptionsForced;

  1775.     char fTmpBuf[STR_MAX+1];

  1776. 

  1777.     CarlaPlugin* _getFirstPlugin() const noexcept

  1778.     {

  1779.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1780.             return nullptr;

  1781. 

  1782.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1783. 

  1784.         if (plugin == nullptr || ! plugin->isEnabled())

  1785.             return nullptr;

  1786. 

  1787.         return pData->plugins[0].plugin;

  1788.     }

  1789. 

  1790.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1791. };

  1792. 

  1793. // -----------------------------------------------------------------------

  1794. 

  1795. static const NativePluginDescriptor carlaRackDesc = {

  1796.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1797.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1798.                                                   |NATIVE_PLUGIN_HAS_UI

  1799.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1800.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1801.                                                   |NATIVE_PLUGIN_USES_STATE

  1802.                                                   |NATIVE_PLUGIN_USES_TIME),

  1803.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1804.     /* audioIns  */ 2,

  1805.     /* audioOuts */ 2,

  1806.     /* midiIns   */ 1,

  1807.     /* midiOuts  */ 1,

  1808.     /* paramIns  */ 0,

  1809.     /* paramOuts */ 0,

  1810.     /* name      */ "Carla-Rack",

  1811.     /* label     */ "carlarack",

  1812.     /* maker     */ "falkTX",

  1813.     /* copyright */ "GNU GPL v2+",

  1814.     CarlaEngineNative::_instantiateRack,

  1815.     CarlaEngineNative::_cleanup,

  1816.     CarlaEngineNative::_get_parameter_count,

  1817.     CarlaEngineNative::_get_parameter_info,

  1818.     CarlaEngineNative::_get_parameter_value,

  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_midi_program_count,

  1862.     CarlaEngineNative::_get_midi_program_info,

  1863.     CarlaEngineNative::_set_parameter_value,

  1864.     CarlaEngineNative::_set_midi_program,

  1865.     /* _set_custom_data        */ nullptr,

  1866.     CarlaEngineNative::_ui_show,

  1867.     CarlaEngineNative::_ui_idle,

  1868.     /* _ui_set_parameter_value */ nullptr,

  1869.     /* _ui_set_midi_program    */ nullptr,

  1870.     /* _ui_set_custom_data     */ nullptr,

  1871.     CarlaEngineNative::_activate,

  1872.     CarlaEngineNative::_deactivate,

  1873.     CarlaEngineNative::_process,

  1874.     CarlaEngineNative::_get_state,

  1875.     CarlaEngineNative::_set_state,

  1876.     CarlaEngineNative::_dispatcher

  1877. };

  1878. 

  1879. static const NativePluginDescriptor carlaPatchbay3sDesc = {

  1880.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1881.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1882.                                                   |NATIVE_PLUGIN_HAS_UI

  1883.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1884.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1885.                                                   |NATIVE_PLUGIN_USES_STATE

  1886.                                                   |NATIVE_PLUGIN_USES_TIME),

  1887.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1888.     /* audioIns  */ 3,

  1889.     /* audioOuts */ 2,

  1890.     /* midiIns   */ 1,

  1891.     /* midiOuts  */ 1,

  1892.     /* paramIns  */ 0,

  1893.     /* paramOuts */ 0,

  1894.     /* name      */ "Carla-Patchbay (sidechain)",

  1895.     /* label     */ "carlapatchbay3s",

  1896.     /* maker     */ "falkTX",

  1897.     /* copyright */ "GNU GPL v2+",

  1898.     CarlaEngineNative::_instantiatePatchbay3s,

  1899.     CarlaEngineNative::_cleanup,

  1900.     CarlaEngineNative::_get_parameter_count,

  1901.     CarlaEngineNative::_get_parameter_info,

  1902.     CarlaEngineNative::_get_parameter_value,

  1903.     CarlaEngineNative::_get_midi_program_count,

  1904.     CarlaEngineNative::_get_midi_program_info,

  1905.     CarlaEngineNative::_set_parameter_value,

  1906.     CarlaEngineNative::_set_midi_program,

  1907.     /* _set_custom_data        */ nullptr,

  1908.     CarlaEngineNative::_ui_show,

  1909.     CarlaEngineNative::_ui_idle,

  1910.     /* _ui_set_parameter_value */ nullptr,

  1911.     /* _ui_set_midi_program    */ nullptr,

  1912.     /* _ui_set_custom_data     */ nullptr,

  1913.     CarlaEngineNative::_activate,

  1914.     CarlaEngineNative::_deactivate,

  1915.     CarlaEngineNative::_process,

  1916.     CarlaEngineNative::_get_state,

  1917.     CarlaEngineNative::_set_state,

  1918.     CarlaEngineNative::_dispatcher

  1919. };

  1920. 

  1921. static const NativePluginDescriptor carlaPatchbay16Desc = {

  1922.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1923.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1924.                                                   |NATIVE_PLUGIN_HAS_UI

  1925.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1926.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1927.                                                   |NATIVE_PLUGIN_USES_STATE

  1928.                                                   |NATIVE_PLUGIN_USES_TIME),

  1929.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1930.     /* audioIns  */ 16,

  1931.     /* audioOuts */ 16,

  1932.     /* midiIns   */ 1,

  1933.     /* midiOuts  */ 1,

  1934.     /* paramIns  */ 0,

  1935.     /* paramOuts */ 0,

  1936.     /* name      */ "Carla-Patchbay (16chan)",

  1937.     /* label     */ "carlapatchbay16",

  1938.     /* maker     */ "falkTX",

  1939.     /* copyright */ "GNU GPL v2+",

  1940.     CarlaEngineNative::_instantiatePatchbay16,

  1941.     CarlaEngineNative::_cleanup,

  1942.     CarlaEngineNative::_get_parameter_count,

  1943.     CarlaEngineNative::_get_parameter_info,

  1944.     CarlaEngineNative::_get_parameter_value,

  1945.     CarlaEngineNative::_get_midi_program_count,

  1946.     CarlaEngineNative::_get_midi_program_info,

  1947.     CarlaEngineNative::_set_parameter_value,

  1948.     CarlaEngineNative::_set_midi_program,

  1949.     /* _set_custom_data        */ nullptr,

  1950.     CarlaEngineNative::_ui_show,

  1951.     CarlaEngineNative::_ui_idle,

  1952.     /* _ui_set_parameter_value */ nullptr,

  1953.     /* _ui_set_midi_program    */ nullptr,

  1954.     /* _ui_set_custom_data     */ nullptr,

  1955.     CarlaEngineNative::_activate,

  1956.     CarlaEngineNative::_deactivate,

  1957.     CarlaEngineNative::_process,

  1958.     CarlaEngineNative::_get_state,

  1959.     CarlaEngineNative::_set_state,

  1960.     CarlaEngineNative::_dispatcher

  1961. };

  1962. 

  1963. static const NativePluginDescriptor carlaPatchbay32Desc = {

  1964.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1965.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1966.                                                   |NATIVE_PLUGIN_HAS_UI

  1967.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1968.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1969.                                                   |NATIVE_PLUGIN_USES_STATE

  1970.                                                   |NATIVE_PLUGIN_USES_TIME),

  1971.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1972.     /* audioIns  */ 32,

  1973.     /* audioOuts */ 32,

  1974.     /* midiIns   */ 1,

  1975.     /* midiOuts  */ 1,

  1976.     /* paramIns  */ 0,

  1977.     /* paramOuts */ 0,

  1978.     /* name      */ "Carla-Patchbay (32chan)",

  1979.     /* label     */ "carlapatchbay32",

  1980.     /* maker     */ "falkTX",

  1981.     /* copyright */ "GNU GPL v2+",

  1982.     CarlaEngineNative::_instantiatePatchbay32,

  1983.     CarlaEngineNative::_cleanup,

  1984.     CarlaEngineNative::_get_parameter_count,

  1985.     CarlaEngineNative::_get_parameter_info,

  1986.     CarlaEngineNative::_get_parameter_value,

  1987.     CarlaEngineNative::_get_midi_program_count,

  1988.     CarlaEngineNative::_get_midi_program_info,

  1989.     CarlaEngineNative::_set_parameter_value,

  1990.     CarlaEngineNative::_set_midi_program,

  1991.     /* _set_custom_data        */ nullptr,

  1992.     CarlaEngineNative::_ui_show,

  1993.     CarlaEngineNative::_ui_idle,

  1994.     /* _ui_set_parameter_value */ nullptr,

  1995.     /* _ui_set_midi_program    */ nullptr,

  1996.     /* _ui_set_custom_data     */ nullptr,

  1997.     CarlaEngineNative::_activate,

  1998.     CarlaEngineNative::_deactivate,

  1999.     CarlaEngineNative::_process,

  2000.     CarlaEngineNative::_get_state,

  2001.     CarlaEngineNative::_set_state,

  2002.     CarlaEngineNative::_dispatcher

  2003. };

  2004. 

  2005. CARLA_BACKEND_END_NAMESPACE

  2006. 

  2007. // -----------------------------------------------------------------------

  2008. 

  2009. CARLA_EXPORT

  2010. void carla_register_native_plugin_carla();

  2011. 

  2012. void carla_register_native_plugin_carla()

  2013. {

  2014.     CARLA_BACKEND_USE_NAMESPACE;

  2015.     carla_register_native_plugin(&carlaRackDesc);

  2016.     carla_register_native_plugin(&carlaPatchbayDesc);

  2017.     carla_register_native_plugin(&carlaPatchbay3sDesc);

  2018.     carla_register_native_plugin(&carlaPatchbay16Desc);

  2019.     carla_register_native_plugin(&carlaPatchbay32Desc);

  2020. }

  2021. 

  2022. // -----------------------------------------------------------------------

  2023. 

  2024. CARLA_EXPORT

  2025. const NativePluginDescriptor* carla_get_native_rack_plugin();

  2026. const NativePluginDescriptor* carla_get_native_rack_plugin()

  2027. {

  2028.     // if this is called then we're running as special plugin

  2029.     gNeedsJuceHandling = true;

  2030. 

  2031.     CARLA_BACKEND_USE_NAMESPACE;

  2032.     return &carlaRackDesc;

  2033. }

  2034. 

  2035. CARLA_EXPORT

  2036. const NativePluginDescriptor* carla_get_native_patchbay_plugin();

  2037. const NativePluginDescriptor* carla_get_native_patchbay_plugin()

  2038. {

  2039.     // if this is called then we're running as special plugin

  2040.     gNeedsJuceHandling = true;

  2041. 

  2042.     CARLA_BACKEND_USE_NAMESPACE;

  2043.     return &carlaPatchbayDesc;

  2044. }

  2045. 

  2046. // -----------------------------------------------------------------------

  2047. // Extra stuff for linking purposes

  2048. 

  2049. #ifdef CARLA_PLUGIN_EXPORT

  2050. 

  2051. CARLA_BACKEND_START_NAMESPACE

  2052. 

  2053. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  2054. 

  2055. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

  2056. CarlaEngine*       CarlaEngine::newJuce(const AudioApi)           { return nullptr; }

  2057. uint               CarlaEngine::getJuceApiCount()                 { return 0;       }

  2058. const char*        CarlaEngine::getJuceApiName(const uint)        { return nullptr; }

  2059. const char* const* CarlaEngine::getJuceApiDeviceNames(const uint) { return nullptr; }

  2060. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const uint, const char* const) { return nullptr; }

  2061. # else

  2062. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi)           { return nullptr; }

  2063. uint               CarlaEngine::getRtAudioApiCount()                 { return 0;       }

  2064. const char*        CarlaEngine::getRtAudioApiName(const uint)        { return nullptr; }

  2065. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }

  2066. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }

  2067. # endif

  2068. 

  2069. CARLA_BACKEND_END_NAMESPACE

  2070. 

  2071. #include "CarlaHostCommon.cpp"

  2072. #include "CarlaPluginUI.cpp"

  2073. #include "CarlaDssiUtils.cpp"

  2074. #include "CarlaPatchbayUtils.cpp"

  2075. #include "CarlaPipeUtils.cpp"

  2076. #include "CarlaStateUtils.cpp"

  2077. #include "CarlaJuceEvents.cpp"

  2078. 

  2079. #endif

  2080. 

  2081. // -----------------------------------------------------------------------