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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. #ifdef CARLA_OS_WIN

  24. # error This file should not be compiled for Windows

  25. #endif

  26. 

  27. #include "CarlaEngineInternal.hpp"

  28. #include "CarlaPlugin.hpp"

  29. 

  30. #include "CarlaBackendUtils.hpp"

  31. #include "CarlaMathUtils.hpp"

  32. #include "CarlaStateUtils.hpp"

  33. 

  34. #include "CarlaExternalUI.hpp"

  35. #include "CarlaNative.hpp"

  36. 

  37. #include <QtCore/QTextStream>

  38. #include <QtXml/QDomNode>

  39. 

  40. CARLA_BACKEND_START_NAMESPACE

  41. 

  42. #if 0

  43. } // Fix editor indentation

  44. #endif

  45. 

  46. // -----------------------------------------------------------------------

  47. 

  48. class CarlaEngineNativeUI : public CarlaExternalUI

  49. {

  50. public:

  51.     CarlaEngineNativeUI(CarlaEngine* const engine)

  52.         : fEngine(engine)

  53.     {

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

  55.     }

  56. 

  57.     ~CarlaEngineNativeUI() override

  58.     {

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

  60.     }

  61. 

  62. protected:

  63.     bool msgReceived(const char* const msg) override

  64.     {

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

  66.             return true;

  67. 

  68.         bool ok = true;

  69. 

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

  71.         {

  72.             uint32_t option;

  73.             int32_t value;

  74.             const char* valueStr;

  75. 

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

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

  78.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(valueStr), true);

  79. 

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

  81. 

  82.             delete[] valueStr;

  83.         }

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

  85.         {

  86.             const char* filename;

  87. 

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

  89. 

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

  91. 

  92.             delete[] filename;

  93.         }

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

  95.         {

  96.             const char* filename;

  97. 

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

  99. 

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

  101. 

  102.             delete[] filename;

  103.         }

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

  105.         {

  106.             const char* filename;

  107. 

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

  109. 

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

  111. 

  112.             delete[] filename;

  113.         }

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

  115.         {

  116.             int32_t portA, portB;

  117. 

  118.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portA), true);

  119.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portB), true);

  120. 

  121.             ok = fEngine->patchbayConnect(portA, portB);

  122.         }

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

  124.         {

  125.             uint32_t connectionId;

  126. 

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

  128. 

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

  130.         }

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

  132.         {

  133.             ok = fEngine->patchbayRefresh();

  134.         }

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

  136.         {

  137.             fEngine->transportPlay();

  138.         }

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

  140.         {

  141.             fEngine->transportPause();

  142.         }

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

  144.         {

  145.             uint64_t frame;

  146. 

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

  148. 

  149.             fEngine->transportRelocate(frame);

  150.         }

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

  152.         {

  153.             uint32_t btype, ptype;

  154.             const char* filename = nullptr;

  155.             const char* name;

  156.             const char* label;

  157.             int64_t uniqueId;

  158. 

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

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

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

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

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

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

  165. 

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

  167.             {

  168.                 delete[] filename;

  169.                 filename = nullptr;

  170.             }

  171. 

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

  173.             {

  174.                 delete[] name;

  175.                 name = nullptr;

  176.             }

  177. 

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

  179. 

  180.             if (filename != nullptr)

  181.                 delete[] filename;

  182.             if (name != nullptr)

  183.                 delete[] name;

  184.             delete[] label;

  185.         }

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

  187.         {

  188.             uint32_t pluginId;

  189. 

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

  191. 

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

  193.         }

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

  195.         {

  196.             ok = fEngine->removeAllPlugins();

  197.         }

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

  199.         {

  200.             uint32_t pluginId;

  201.             const char* newName;

  202. 

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

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

  205. 

  206.             // TODO

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

  208. 

  209.             delete[] newName;

  210.         }

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

  212.         {

  213.             uint32_t pluginId;

  214. 

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

  216. 

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

  218.         }

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

  220.         {

  221.             uint32_t pluginId;

  222. 

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

  224. 

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

  226.         }

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

  228.         {

  229.             uint32_t pluginIdA, pluginIdB;

  230. 

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

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

  233. 

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

  235.         }

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

  237.         {

  238.             uint32_t pluginId;

  239.             const char* filename;

  240. 

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

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

  243. 

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

  245.                 plugin->loadStateFromFile(filename);

  246. 

  247.             delete[] filename;

  248.         }

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

  250.         {

  251.             uint32_t pluginId;

  252.             const char* filename;

  253. 

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

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

  256. 

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

  258.                 plugin->saveStateToFile(filename);

  259. 

  260.             delete[] filename;

  261.         }

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

  263.         {

  264.             uint32_t pluginId, option;

  265.             bool yesNo;

  266. 

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

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

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

  270. 

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

  272.                 plugin->setOption(option, yesNo);

  273.         }

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

  275.         {

  276.             uint32_t pluginId;

  277.             bool onOff;

  278. 

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

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

  281. 

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

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

  284.         }

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

  286.         {

  287.             uint32_t pluginId;

  288.             float value;

  289. 

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

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

  292. 

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

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

  295.         }

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

  297.         {

  298.             uint32_t pluginId;

  299.             float value;

  300. 

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

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

  303. 

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

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

  306.         }

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

  308.         {

  309.             uint32_t pluginId;

  310.             float value;

  311. 

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

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

  314. 

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

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

  317.         }

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

  319.         {

  320.             uint32_t pluginId;

  321.             float value;

  322. 

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

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

  325. 

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

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

  328.         }

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

  330.         {

  331.             uint32_t pluginId;

  332.             float value;

  333. 

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

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

  336. 

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

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

  339.         }

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

  341.         {

  342.             uint32_t pluginId;

  343.             int32_t channel;

  344. 

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

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

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

  348. 

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

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

  351.         }

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

  353.         {

  354.             uint32_t pluginId, parameterId;

  355.             float value;

  356. 

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

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

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

  360. 

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

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

  363.         }

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

  365.         {

  366.             uint32_t pluginId, parameterId, channel;

  367. 

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

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

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

  371.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  372. 

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

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

  375.         }

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

  377.         {

  378.             uint32_t pluginId, parameterId;

  379.             int32_t cc;

  380. 

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

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

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

  384.             CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < 0x5F, true);

  385. 

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

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

  388.         }

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

  390.         {

  391.             uint32_t pluginId;

  392.             int32_t index;

  393. 

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

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

  396. 

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

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

  399.         }

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

  401.         {

  402.             uint32_t pluginId;

  403.             int32_t index;

  404. 

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

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

  407. 

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

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

  410.         }

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

  412.         {

  413.             uint32_t pluginId;

  414.             const char* type;

  415.             const char* key;

  416.             const char* value;

  417. 

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

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

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

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

  422. 

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

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

  425. 

  426.             delete[] type;

  427.             delete[] key;

  428.             delete[] value;

  429.         }

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

  431.         {

  432.             uint32_t pluginId;

  433.             const char* cdata;

  434. 

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

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

  437. 

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

  439.                 plugin->setChunkData(cdata);

  440. 

  441.             delete[] cdata;

  442.         }

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

  444.         {

  445.             uint32_t pluginId;

  446. 

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

  448. 

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

  450.                 plugin->prepareForSave();

  451.         }

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

  453.         {

  454.             uint32_t pluginId, channel, note, velocity;

  455. 

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

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

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

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

  460.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  461.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  462.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  463. 

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

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

  466.         }

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

  468.         {

  469.             uint32_t pluginId;

  470.             bool yesNo;

  471. 

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

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

  474. 

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

  476.                 plugin->showCustomUI(yesNo);

  477.         }

  478.         else

  479.         {

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

  481.             return false;

  482.         }

  483. 

  484.         if (! ok)

  485.         {

  486.             writeMsg("error\n", 6);

  487.             writeAndFixMsg(fEngine->getLastError());

  488.         }

  489. 

  490.         return true;

  491.     }

  492. 

  493. private:

  494.     CarlaEngine* const fEngine;

  495. 

  496.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  497. };

  498. 

  499. // -----------------------------------------------------------------------

  500. 

  501. class CarlaEngineNative : public CarlaEngine

  502. {

  503. public:

  504.     CarlaEngineNative(const NativeHostDescriptor* const host, const bool isPatchbay)

  505.         : CarlaEngine(),

  506.           pHost(host),

  507.           fIsPatchbay(isPatchbay),

  508.           fIsActive(false),

  509.           fIsRunning(false),

  510.           fUiServer(this)

  511.     {

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

  513. 

  514.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  515. 

  516.         // set-up engine

  517.         if (fIsPatchbay)

  518.         {

  519.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  520.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  521.             pData->options.forceStereo         = false;

  522.             pData->options.preferPluginBridges = false;

  523.             pData->options.preferUiBridges     = false;

  524.             init("Carla-Patchbay");

  525.         }

  526.         else

  527.         {

  528.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  529.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  530.             pData->options.forceStereo         = true;

  531.             pData->options.preferPluginBridges = false;

  532.             pData->options.preferUiBridges     = false;

  533.             init("Carla-Rack");

  534.         }

  535. 

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

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

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

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

  540. 

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

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

  543. 

  544.         setCallback(_ui_server_callback, this);

  545.     }

  546. 

  547.     ~CarlaEngineNative() override

  548.     {

  549.         CARLA_SAFE_ASSERT(! fIsActive);

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

  551. 

  552.         pData->aboutToClose = true;

  553.         fIsRunning = false;

  554. 

  555.         removeAllPlugins();

  556.         runPendingRtEvents();

  557.         close();

  558. 

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

  560.     }

  561. 

  562. protected:

  563.     // -------------------------------------

  564.     // CarlaEngine virtual calls

  565. 

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

  567.     {

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

  569. 

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

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

  572. 

  573.         fIsRunning = true;

  574.         CarlaEngine::init(clientName);

  575.         return true;

  576.     }

  577. 

  578.     bool isRunning() const noexcept override

  579.     {

  580.         return fIsRunning;

  581.     }

  582. 

  583.     bool isOffline() const noexcept override

  584.     {

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

  586.     }

  587. 

  588.     EngineType getType() const noexcept override

  589.     {

  590.         return kEngineTypePlugin;

  591.     }

  592. 

  593.     const char* getCurrentDriverName() const noexcept override

  594.     {

  595.         return "Plugin";

  596.     }

  597. 

  598.     // -------------------------------------------------------------------

  599. 

  600.     const char* renamePlugin(const unsigned int id, const char* const newName) override

  601.     {

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

  603.         {

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

  605.             return retName;

  606.         }

  607. 

  608.         return nullptr;

  609.     }

  610. 

  611.     // -------------------------------------------------------------------

  612. 

  613.     void bufferSizeChanged(const uint32_t newBufferSize)

  614.     {

  615.         pData->bufferSize = newBufferSize;

  616.         CarlaEngine::bufferSizeChanged(newBufferSize);

  617.     }

  618. 

  619.     void sampleRateChanged(const double newSampleRate)

  620.     {

  621.         pData->sampleRate = newSampleRate;

  622.         CarlaEngine::sampleRateChanged(newSampleRate);

  623.     }

  624. 

  625.     // -------------------------------------------------------------------

  626. 

  627.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  628.     {

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

  630. 

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

  632.         fUiServer.writeMsg(fTmpBuf);

  633. 

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

  635.         fUiServer.writeMsg(fTmpBuf);

  636. 

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

  638.         {

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

  640.             fUiServer.writeAndFixMsg(fTmpBuf);

  641.         }

  642.         else

  643.             fUiServer.writeMsg("\n");

  644. 

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

  646.         {

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

  648.             fUiServer.writeAndFixMsg(fTmpBuf);

  649.         }

  650.         else

  651.             fUiServer.writeMsg("\n");

  652. 

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

  654.         {

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

  656.             fUiServer.writeAndFixMsg(fTmpBuf);

  657.         }

  658.         else

  659.             fUiServer.writeMsg("\n");

  660. 

  661.         plugin->getRealName(fTmpBuf);

  662.         fUiServer.writeAndFixMsg(fTmpBuf);

  663. 

  664.         plugin->getLabel(fTmpBuf);

  665.         fUiServer.writeAndFixMsg(fTmpBuf);

  666. 

  667.         plugin->getMaker(fTmpBuf);

  668.         fUiServer.writeAndFixMsg(fTmpBuf);

  669. 

  670.         plugin->getCopyright(fTmpBuf);

  671.         fUiServer.writeAndFixMsg(fTmpBuf);

  672. 

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

  674.         fUiServer.writeMsg(fTmpBuf);

  675. 

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

  677.         fUiServer.writeMsg(fTmpBuf);

  678.     }

  679. 

  680.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  681.     {

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

  683. 

  684.         uint32_t ins, outs, count;

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

  686.         count = plugin->getParameterCount();

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

  688.         fUiServer.writeMsg(fTmpBuf);

  689. 

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

  691.         {

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

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

  694. 

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

  696.             fUiServer.writeMsg(fTmpBuf);

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

  698.             fUiServer.writeMsg(fTmpBuf);

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

  700.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  702.             fUiServer.writeAndFixMsg(fTmpBuf);

  703. 

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

  705.             fUiServer.writeMsg(fTmpBuf);

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

  707.             fUiServer.writeMsg(fTmpBuf);

  708. 

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

  710.             fUiServer.writeMsg(fTmpBuf);

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

  712.             fUiServer.writeMsg(fTmpBuf);

  713.         }

  714.     }

  715. 

  716.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  717.     {

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

  719. 

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

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

  722.         fUiServer.writeMsg(fTmpBuf);

  723. 

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

  725.         {

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

  727.             fUiServer.writeMsg(fTmpBuf);

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

  729.             fUiServer.writeAndFixMsg(fTmpBuf);

  730.         }

  731. 

  732.         count = plugin->getMidiProgramCount();

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

  734.         fUiServer.writeMsg(fTmpBuf);

  735. 

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

  737.         {

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

  739.             fUiServer.writeMsg(fTmpBuf);

  740. 

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

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

  743.             fUiServer.writeMsg(fTmpBuf);

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

  745.             fUiServer.writeAndFixMsg(fTmpBuf);

  746.         }

  747.     }

  748. 

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

  750.     {

  751.         if (! fIsRunning)

  752.             return;

  753.         if (! fUiServer.isOk())

  754.             return;

  755. 

  756.         CarlaPlugin* plugin;

  757. 

  758.         switch (action)

  759.         {

  760.         case ENGINE_CALLBACK_RELOAD_INFO:

  761.             plugin = getPlugin(pluginId);

  762. 

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

  764.             {

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

  766.                 uiServerSendPluginInfo(plugin);

  767.             }

  768.             break;

  769. 

  770.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  771.             plugin = getPlugin(pluginId);

  772. 

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

  774.             {

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

  776.                 uiServerSendPluginParameters(plugin);

  777.             }

  778.             break;

  779. 

  780.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  781.             plugin = getPlugin(pluginId);

  782. 

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

  784.             {

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

  786.                 uiServerSendPluginPrograms(plugin);

  787.             }

  788.             break;

  789. 

  790.         case ENGINE_CALLBACK_RELOAD_ALL:

  791.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  792.             plugin = getPlugin(pluginId);

  793. 

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

  795.             {

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

  797.                 uiServerSendPluginInfo(plugin);

  798.                 uiServerSendPluginParameters(plugin);

  799.                 uiServerSendPluginPrograms(plugin);

  800.             }

  801.             break;

  802. 

  803.         default:

  804.             break;

  805.         }

  806. 

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

  808.         fUiServer.writeMsg(fTmpBuf);

  809. 

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

  811.         fUiServer.writeMsg(fTmpBuf);

  812. 

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

  814.         fUiServer.writeMsg(fTmpBuf);

  815. 

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

  817.         fUiServer.writeMsg(fTmpBuf);

  818. 

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

  820.         fUiServer.writeMsg(fTmpBuf);

  821. 

  822.         fUiServer.writeAndFixMsg(valueStr);

  823.     }

  824. 

  825.     // -------------------------------------------------------------------

  826.     // Plugin parameter calls

  827. 

  828.     uint32_t getParameterCount() const

  829.     {

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

  831.             return plugin->getParameterCount();

  832. 

  833.         return 0;

  834.     }

  835. 

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

  837.     {

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

  839.         {

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

  841.             {

  842.                 static NativeParameter param;

  843.                 static char strBufName[STR_MAX+1];

  844.                 static char strBufUnit[STR_MAX+1];

  845. 

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

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

  848. 

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

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

  851. 

  852.                 unsigned int hints = 0x0;

  853. 

  854.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  855.                     hints |= ::PARAMETER_IS_BOOLEAN;

  856.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  857.                     hints |= ::PARAMETER_IS_INTEGER;

  858.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  859.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  860.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  861.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  862.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  863.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  864.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  865.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  866.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  867.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  868. 

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

  870.                 {

  871.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  872.                         hints |= ::PARAMETER_IS_ENABLED;

  873.                     if (paramData.type == PARAMETER_OUTPUT)

  874.                         hints |= ::PARAMETER_IS_OUTPUT;

  875.                 }

  876. 

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

  878.                 param.name  = strBufName;

  879.                 param.unit  = strBufUnit;

  880.                 param.ranges.def = paramRanges.def;

  881.                 param.ranges.min = paramRanges.min;

  882.                 param.ranges.max = paramRanges.max;

  883.                 param.ranges.step = paramRanges.step;

  884.                 param.ranges.stepSmall = paramRanges.stepSmall;

  885.                 param.ranges.stepLarge = paramRanges.stepLarge;

  886.                 param.scalePointCount = 0; // TODO

  887.                 param.scalePoints = nullptr;

  888. 

  889.                 return &param;

  890.             }

  891.         }

  892. 

  893.         return nullptr;

  894.     }

  895. 

  896.     float getParameterValue(const uint32_t index) const

  897.     {

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

  899.         {

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

  901.                 return plugin->getParameterValue(index);

  902.         }

  903. 

  904.         return 0.0f;

  905.     }

  906. 

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

  908.     {

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

  910.         {

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

  912.             {

  913.                 static char strBuf[STR_MAX+1];

  914.                 carla_zeroChar(strBuf, STR_MAX+1);

  915. 

  916.                 plugin->getParameterText(index, value, strBuf);

  917. 

  918.                 return strBuf;

  919.             }

  920.         }

  921. 

  922.         return nullptr;

  923.     }

  924. 

  925.     // -------------------------------------------------------------------

  926.     // Plugin midi-program calls

  927. 

  928.     uint32_t getMidiProgramCount() const

  929.     {

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

  931.             return plugin->getMidiProgramCount();

  932. 

  933.         return 0;

  934.     }

  935. 

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

  937.     {

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

  939.         {

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

  941.             {

  942.                 static NativeMidiProgram midiProg;

  943. 

  944.                 {

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

  946. 

  947.                     midiProg.bank    = midiProgData.bank;

  948.                     midiProg.program = midiProgData.program;

  949.                     midiProg.name    = midiProgData.name;

  950.                 }

  951. 

  952.                 return &midiProg;

  953.             }

  954.         }

  955. 

  956.         return nullptr;

  957.     }

  958. 

  959.     // -------------------------------------------------------------------

  960.     // Plugin state calls

  961. 

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

  963.     {

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

  965.         {

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

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

  968.         }

  969.     }

  970. 

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

  972.     {

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

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

  975.     }

  976. 

  977.     // -------------------------------------------------------------------

  978.     // Plugin process calls

  979. 

  980.     void activate()

  981.     {

  982. #if 0

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

  984.         {

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

  986. 

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

  988.                 continue;

  989. 

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

  991.         }

  992. #endif

  993.         fIsActive = true;

  994.     }

  995. 

  996.     void deactivate()

  997.     {

  998.         fIsActive = false;

  999. #if 0

  1000.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1001.         {

  1002.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1003. 

  1004.             if (plugin == nullptr || ! plugin->isEnabled())

  1005.                 continue;

  1006. 

  1007.             plugin->setActive(false, true, false);

  1008.         }

  1009. #endif

  1010. 

  1011.         // just in case

  1012.         runPendingRtEvents();

  1013.     }

  1014. 

  1015.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1016.     {

  1017.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1018.         {

  1019.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1020.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1021. 

  1022.             return runPendingRtEvents();;

  1023.         }

  1024. 

  1025.         // ---------------------------------------------------------------

  1026.         // Time Info

  1027. 

  1028.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1029. 

  1030.         pData->timeInfo.playing = timeInfo->playing;

  1031.         pData->timeInfo.frame   = timeInfo->frame;

  1032.         pData->timeInfo.usecs   = timeInfo->usecs;

  1033.         pData->timeInfo.valid   = 0x0;

  1034. 

  1035.         if (timeInfo->bbt.valid)

  1036.         {

  1037.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1038. 

  1039.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1040.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1041.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1042.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1043. 

  1044.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1045.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1046. 

  1047.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1048.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1049.         }

  1050. 

  1051.         // ---------------------------------------------------------------

  1052.         // initialize events

  1053. 

  1054.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in,  kMaxEngineEventInternalCount);

  1055.         carla_zeroStruct<EngineEvent>(pData->bufEvents.out, kMaxEngineEventInternalCount);

  1056. 

  1057.         // ---------------------------------------------------------------

  1058.         // events input (before processing)

  1059. 

  1060.         {

  1061.             uint32_t engineEventIndex = 0;

  1062. 

  1063.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1064.             {

  1065.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1066.                 EngineEvent&           engineEvent(pData->bufEvents.in[engineEventIndex++]);

  1067. 

  1068.                 engineEvent.time = midiEvent.time;

  1069.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1070. 

  1071.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1072.                     break;

  1073.             }

  1074.         }

  1075. 

  1076.         if (fIsPatchbay)

  1077.         {

  1078.             // -----------------------------------------------------------

  1079.             // create audio buffers

  1080. 

  1081.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1082.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1083.             //uint32_t bufCount[2] = { 2, 2 };

  1084. 

  1085.             // -----------------------------------------------------------

  1086.             // process

  1087. 

  1088.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1089.         }

  1090.         else

  1091.         {

  1092.             // -----------------------------------------------------------

  1093.             // create audio buffers

  1094. 

  1095.             float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1096.             float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1097. 

  1098.             // -----------------------------------------------------------

  1099.             // process

  1100. 

  1101.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1102.         }

  1103. 

  1104.         // ---------------------------------------------------------------

  1105.         // events output (after processing)

  1106. 

  1107.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in, kMaxEngineEventInternalCount);

  1108. 

  1109.         {

  1110.             NativeMidiEvent midiEvent;

  1111. 

  1112.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1113.             {

  1114.                 const EngineEvent& engineEvent(pData->bufEvents.out[i]);

  1115. 

  1116.                 if (engineEvent.type == kEngineEventTypeNull)

  1117.                     break;

  1118. 

  1119.                 midiEvent.time = engineEvent.time;

  1120. 

  1121.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1122.                 {

  1123.                     midiEvent.port = 0;

  1124.                     engineEvent.ctrl.dumpToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1125.                 }

  1126.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1127.                 {

  1128.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1129.                         continue;

  1130. 

  1131.                     midiEvent.port = engineEvent.midi.port;

  1132.                     midiEvent.size = engineEvent.midi.size;

  1133. 

  1134.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1135. 

  1136.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1137.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1138.                 }

  1139.                 else

  1140.                 {

  1141.                     carla_stderr("Unknown event type...");

  1142.                     continue;

  1143.                 }

  1144. 

  1145.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1146.             }

  1147.         }

  1148. 

  1149.         runPendingRtEvents();

  1150.     }

  1151. 

  1152.     // -------------------------------------------------------------------

  1153.     // Plugin UI calls

  1154. 

  1155.     void uiShow(const bool show)

  1156.     {

  1157.         if (show)

  1158.         {

  1159.             CarlaString path(pHost->resourceDir);

  1160.             path += "/carla-plugin";

  1161. 

  1162.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1163. 

  1164.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1165.             fUiServer.start();

  1166. 

  1167.             for (uint i=0; i < pData->curPluginCount; ++i)

  1168.             {

  1169.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1170. 

  1171.                 if (plugin != nullptr && plugin->isEnabled())

  1172.                 {

  1173.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1174.                 }

  1175.             }

  1176.         }

  1177.         else

  1178.         {

  1179.             fUiServer.stop();

  1180.         }

  1181.     }

  1182. 

  1183.     void uiIdle()

  1184.     {

  1185.         CarlaEngine::idle();

  1186.         fUiServer.idle();

  1187. 

  1188.         if (! fUiServer.isOk())

  1189.             return;

  1190. 

  1191.         for (uint i=0; i < pData->curPluginCount; ++i)

  1192.         {

  1193.             const EnginePluginData& plugData(pData->plugins[i]);

  1194.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1195. 

  1196.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1197.             fUiServer.writeMsg(fTmpBuf);

  1198. 

  1199.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1200.             fUiServer.writeMsg(fTmpBuf);

  1201. 

  1202.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1203.             {

  1204.                 if (plugin->isParameterOutput(j))

  1205.                     continue;

  1206. 

  1207.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1208.                 fUiServer.writeMsg(fTmpBuf);

  1209.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1210.                 fUiServer.writeMsg(fTmpBuf);

  1211.             }

  1212.         }

  1213. 

  1214.         switch (fUiServer.getAndResetUiState())

  1215.         {

  1216.         case CarlaExternalUI::UiNone:

  1217.         case CarlaExternalUI::UiShow:

  1218.             break;

  1219.         case CarlaExternalUI::UiCrashed:

  1220.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1221.             break;

  1222.         case CarlaExternalUI::UiHide:

  1223.             pHost->ui_closed(pHost->handle);

  1224.             break;

  1225.         }

  1226.     }

  1227. 

  1228.     // -------------------------------------------------------------------

  1229.     // Plugin state calls

  1230. 

  1231.     char* getState() const

  1232.     {

  1233.         QString string;

  1234.         QTextStream out(&string);

  1235.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1236.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1237.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1238. 

  1239.         bool firstPlugin = true;

  1240.         char strBuf[STR_MAX+1];

  1241. 

  1242.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1243.         {

  1244.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1245. 

  1246.             if (plugin != nullptr && plugin->isEnabled())

  1247.             {

  1248.                 if (! firstPlugin)

  1249.                     out << "\n";

  1250. 

  1251.                 strBuf[0] = '\0';

  1252. 

  1253.                 plugin->getRealName(strBuf);

  1254. 

  1255.                 //if (strBuf[0] != '\0')

  1256.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1257. 

  1258.                 QString content;

  1259.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1260. 

  1261.                 out << " <Plugin>\n";

  1262.                 out << content;

  1263.                 out << " </Plugin>\n";

  1264. 

  1265.                 firstPlugin = false;

  1266.             }

  1267.         }

  1268. 

  1269.         out << "</CARLA-PROJECT>\n";

  1270. 

  1271.         return strdup(string.toUtf8().constData());

  1272.     }

  1273. 

  1274.     void setState(const char* const data)

  1275.     {

  1276.         QDomDocument xml;

  1277.         xml.setContent(QString(data));

  1278. 

  1279.         QDomNode xmlNode(xml.documentElement());

  1280. 

  1281.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1282.         {

  1283.             carla_stderr2("Not a valid Carla project");

  1284.             return;

  1285.         }

  1286. 

  1287.         //bool pluginsAdded = false;

  1288. 

  1289.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1290.         {

  1291.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1292.             {

  1293.                 SaveState saveState;

  1294.                 fillSaveStateFromXmlNode(saveState, node);

  1295. 

  1296.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr);

  1297. 

  1298.                 const void* extraStuff = nullptr;

  1299. 

  1300.                 // check if using GIG, SF2 or SFZ 16outs

  1301.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1302. 

  1303.                 const PluginType ptype(getPluginTypeFromString(saveState.type));

  1304. 

  1305.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1306.                 {

  1307.                     if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)

  1308.                         extraStuff = "true";

  1309.                 }

  1310. 

  1311.                 // TODO - proper find&load plugins

  1312. 

  1313.                 if (addPlugin(ptype, saveState.binary, saveState.name, saveState.label, saveState.uniqueId, extraStuff))

  1314.                 {

  1315.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1316.                         plugin->loadSaveState(saveState);

  1317.                 }

  1318. 

  1319.                 //pluginsAdded = true;

  1320.             }

  1321.         }

  1322. 

  1323.         //if (pluginsAdded)

  1324.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1325.     }

  1326. 

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

  1328. 

  1329. public:

  1330.     #define handlePtr ((CarlaEngineNative*)handle)

  1331. 

  1332.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1333.     {

  1334.         return new CarlaEngineNative(host, false);

  1335.     }

  1336. 

  1337. #ifdef HAVE_JUCE

  1338.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1339.     {

  1340.         return new CarlaEngineNative(host, true);

  1341.     }

  1342. #endif

  1343. 

  1344.     static void _cleanup(NativePluginHandle handle)

  1345.     {

  1346.         delete handlePtr;

  1347.     }

  1348. 

  1349.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1350.     {

  1351.         return handlePtr->getParameterCount();

  1352.     }

  1353. 

  1354.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1355.     {

  1356.         return handlePtr->getParameterInfo(index);

  1357.     }

  1358. 

  1359.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1360.     {

  1361.         return handlePtr->getParameterValue(index);

  1362.     }

  1363. 

  1364.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index, float value)

  1365.     {

  1366.         return handlePtr->getParameterText(index, value);

  1367.     }

  1368. 

  1369.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1370.     {

  1371.         return handlePtr->getMidiProgramCount();

  1372.     }

  1373. 

  1374.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1375.     {

  1376.         return handlePtr->getMidiProgramInfo(index);

  1377.     }

  1378. 

  1379.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1380.     {

  1381.         handlePtr->setParameterValue(index, value);

  1382.     }

  1383. 

  1384.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1385.     {

  1386.         handlePtr->setMidiProgram(channel, bank, program);

  1387.     }

  1388. 

  1389.     static void _ui_show(NativePluginHandle handle, bool show)

  1390.     {

  1391.         handlePtr->uiShow(show);

  1392.     }

  1393. 

  1394.     static void _ui_idle(NativePluginHandle handle)

  1395.     {

  1396.         handlePtr->uiIdle();

  1397.     }

  1398. 

  1399.     static void _activate(NativePluginHandle handle)

  1400.     {

  1401.         handlePtr->activate();

  1402.     }

  1403. 

  1404.     static void _deactivate(NativePluginHandle handle)

  1405.     {

  1406.         handlePtr->deactivate();

  1407.     }

  1408. 

  1409.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1410.     {

  1411.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1412.     }

  1413. 

  1414.     static char* _get_state(NativePluginHandle handle)

  1415.     {

  1416.         return handlePtr->getState();

  1417.     }

  1418. 

  1419.     static void _set_state(NativePluginHandle handle, const char* data)

  1420.     {

  1421.         handlePtr->setState(data);

  1422.     }

  1423. 

  1424.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1425.     {

  1426.         switch(opcode)

  1427.         {

  1428.         case PLUGIN_OPCODE_NULL:

  1429.             return 0;

  1430.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1431.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1432.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1433.             return 0;

  1434.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1435.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1436.             return 0;

  1437.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1438.             handlePtr->offlineModeChanged(value != 0);

  1439.             return 0;

  1440.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1441.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1442.             return 0;

  1443.         }

  1444. 

  1445.         return 0;

  1446. 

  1447.         // unused

  1448.         (void)index;

  1449.         (void)ptr;

  1450.     }

  1451. 

  1452.     // -------------------------------------------------------------------

  1453. 

  1454.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1455.     {

  1456.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1457.     }

  1458. 

  1459.     // -------------------------------------------------------------------

  1460. 

  1461.     #undef handlePtr

  1462. 

  1463. private:

  1464.     const NativeHostDescriptor* const pHost;

  1465. 

  1466.     const bool fIsPatchbay; // rack if false

  1467.     bool fIsActive, fIsRunning;

  1468.     CarlaEngineNativeUI fUiServer;

  1469. 

  1470.     char fTmpBuf[STR_MAX+1];

  1471. 

  1472.     CarlaPlugin* _getFirstPlugin() const noexcept

  1473.     {

  1474.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1475.             return nullptr;

  1476. 

  1477.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1478. 

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

  1480.             return nullptr;

  1481. 

  1482.         return pData->plugins[0].plugin;

  1483.     }

  1484. 

  1485.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1486. };

  1487. 

  1488. // -----------------------------------------------------------------------

  1489. 

  1490. static const NativePluginDescriptor carlaRackDesc = {

  1491.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1492.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1493.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1494.     /* audioIns  */ 2,

  1495.     /* audioOuts */ 2,

  1496.     /* midiIns   */ 1,

  1497.     /* midiOuts  */ 1,

  1498.     /* paramIns  */ 0,

  1499.     /* paramOuts */ 0,

  1500.     /* name      */ "Carla-Rack",

  1501.     /* label     */ "carlarack",

  1502.     /* maker     */ "falkTX",

  1503.     /* copyright */ "GNU GPL v2+",

  1504.     CarlaEngineNative::_instantiateRack,

  1505.     CarlaEngineNative::_cleanup,

  1506.     CarlaEngineNative::_get_parameter_count,

  1507.     CarlaEngineNative::_get_parameter_info,

  1508.     CarlaEngineNative::_get_parameter_value,

  1509.     CarlaEngineNative::_get_parameter_text,

  1510.     CarlaEngineNative::_get_midi_program_count,

  1511.     CarlaEngineNative::_get_midi_program_info,

  1512.     CarlaEngineNative::_set_parameter_value,

  1513.     CarlaEngineNative::_set_midi_program,

  1514.     /* _set_custom_data        */ nullptr,

  1515.     CarlaEngineNative::_ui_show,

  1516.     CarlaEngineNative::_ui_idle,

  1517.     /* _ui_set_parameter_value */ nullptr,

  1518.     /* _ui_set_midi_program    */ nullptr,

  1519.     /* _ui_set_custom_data     */ nullptr,

  1520.     CarlaEngineNative::_activate,

  1521.     CarlaEngineNative::_deactivate,

  1522.     CarlaEngineNative::_process,

  1523.     CarlaEngineNative::_get_state,

  1524.     CarlaEngineNative::_set_state,

  1525.     CarlaEngineNative::_dispatcher

  1526. };

  1527. 

  1528. #if 0 //def HAVE_JUCE

  1529. static const NativePluginDescriptor carlaPatchbayDesc = {

  1530.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1531.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1532.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1533.     /* audioIns  */ 2,

  1534.     /* audioOuts */ 2,

  1535.     /* midiIns   */ 1,

  1536.     /* midiOuts  */ 1,

  1537.     /* paramIns  */ 0,

  1538.     /* paramOuts */ 0,

  1539.     /* name      */ "Carla-Patchbay",

  1540.     /* label     */ "carlapatchbay",

  1541.     /* maker     */ "falkTX",

  1542.     /* copyright */ "GNU GPL v2+",

  1543.     CarlaEngineNative::_instantiatePatchbay,

  1544.     CarlaEngineNative::_cleanup,

  1545.     CarlaEngineNative::_get_parameter_count,

  1546.     CarlaEngineNative::_get_parameter_info,

  1547.     CarlaEngineNative::_get_parameter_value,

  1548.     CarlaEngineNative::_get_parameter_text,

  1549.     CarlaEngineNative::_get_midi_program_count,

  1550.     CarlaEngineNative::_get_midi_program_info,

  1551.     CarlaEngineNative::_set_parameter_value,

  1552.     CarlaEngineNative::_set_midi_program,

  1553.     /* _set_custom_data        */ nullptr,

  1554.     CarlaEngineNative::_ui_show,

  1555.     CarlaEngineNative::_ui_idle,

  1556.     /* _ui_set_parameter_value */ nullptr,

  1557.     /* _ui_set_midi_program    */ nullptr,

  1558.     /* _ui_set_custom_data     */ nullptr,

  1559.     CarlaEngineNative::_activate,

  1560.     CarlaEngineNative::_deactivate,

  1561.     CarlaEngineNative::_process,

  1562.     CarlaEngineNative::_get_state,

  1563.     CarlaEngineNative::_set_state,

  1564.     CarlaEngineNative::_dispatcher

  1565. };

  1566. #endif

  1567. 

  1568. // -----------------------------------------------------------------------

  1569. 

  1570. CARLA_BACKEND_END_NAMESPACE

  1571. 

  1572. CARLA_EXPORT

  1573. void carla_register_native_plugin_carla();

  1574. 

  1575. void carla_register_native_plugin_carla()

  1576. {

  1577.     CARLA_BACKEND_USE_NAMESPACE;

  1578.     carla_register_native_plugin(&carlaRackDesc);

  1579. #if 0 //def HAVE_JUCE

  1580.     carla_register_native_plugin(&carlaPatchbayDesc);

  1581. #endif

  1582. }

  1583. 

  1584. // -----------------------------------------------------------------------

  1585. // Extra stuff for linking purposes

  1586. 

  1587. #ifdef CARLA_PLUGIN_EXPORT

  1588. 

  1589. CARLA_BACKEND_START_NAMESPACE

  1590. 

  1591. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1592. 

  1593. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1594. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1595. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

  1596. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1597. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1598. 

  1599. # ifdef HAVE_JUCE

  1600. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1601. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

  1602. const char*        CarlaEngine::getJuceApiName(const unsigned int) { return nullptr; }

  1603. const char* const* CarlaEngine::getJuceApiDeviceNames(const unsigned int) { return nullptr; }

  1604. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1605. # endif

  1606. 

  1607. CARLA_BACKEND_END_NAMESPACE

  1608. 

  1609. #ifdef WANT_DSSI

  1610. # include "CarlaDssiUtils.cpp"

  1611. #endif

  1612. 

  1613. #include "CarlaStateUtils.cpp"

  1614. 

  1615. #endif

  1616. 

  1617. // -----------------------------------------------------------------------