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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 groupA, portA, groupB, portB;

  117. 

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

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

  120.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(groupB), true);

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

  122. 

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

  124.         }

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

  126.         {

  127.             uint32_t connectionId;

  128. 

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

  130. 

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

  132.         }

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

  134.         {

  135.             ok = fEngine->patchbayRefresh();

  136.         }

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

  138.         {

  139.             fEngine->transportPlay();

  140.         }

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

  142.         {

  143.             fEngine->transportPause();

  144.         }

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

  146.         {

  147.             uint64_t frame;

  148. 

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

  150. 

  151.             fEngine->transportRelocate(frame);

  152.         }

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

  154.         {

  155.             uint32_t btype, ptype;

  156.             const char* filename = nullptr;

  157.             const char* name;

  158.             const char* label;

  159.             int64_t uniqueId;

  160. 

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

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

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

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

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

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

  167. 

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

  169.             {

  170.                 delete[] filename;

  171.                 filename = nullptr;

  172.             }

  173. 

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

  175.             {

  176.                 delete[] name;

  177.                 name = nullptr;

  178.             }

  179. 

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

  181. 

  182.             if (filename != nullptr)

  183.                 delete[] filename;

  184.             if (name != nullptr)

  185.                 delete[] name;

  186.             delete[] label;

  187.         }

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

  189.         {

  190.             uint32_t pluginId;

  191. 

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

  193. 

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

  195.         }

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

  197.         {

  198.             ok = fEngine->removeAllPlugins();

  199.         }

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

  201.         {

  202.             uint32_t pluginId;

  203.             const char* newName;

  204. 

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

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

  207. 

  208.             // TODO

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

  210. 

  211.             delete[] newName;

  212.         }

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

  214.         {

  215.             uint32_t pluginId;

  216. 

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

  218. 

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

  220.         }

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

  222.         {

  223.             uint32_t pluginId;

  224. 

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

  226. 

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

  228.         }

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

  230.         {

  231.             uint32_t pluginIdA, pluginIdB;

  232. 

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

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

  235. 

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

  237.         }

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

  239.         {

  240.             uint32_t pluginId;

  241.             const char* filename;

  242. 

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

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

  245. 

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

  247.                 plugin->loadStateFromFile(filename);

  248. 

  249.             delete[] filename;

  250.         }

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

  252.         {

  253.             uint32_t pluginId;

  254.             const char* filename;

  255. 

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

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

  258. 

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

  260.                 plugin->saveStateToFile(filename);

  261. 

  262.             delete[] filename;

  263.         }

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

  265.         {

  266.             uint32_t pluginId, option;

  267.             bool yesNo;

  268. 

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

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

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

  272. 

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

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

  275.         }

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

  277.         {

  278.             uint32_t pluginId;

  279.             bool onOff;

  280. 

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

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

  283. 

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

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

  286.         }

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

  288.         {

  289.             uint32_t pluginId;

  290.             float value;

  291. 

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

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

  294. 

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

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

  297.         }

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

  299.         {

  300.             uint32_t pluginId;

  301.             float value;

  302. 

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

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

  305. 

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

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

  308.         }

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

  310.         {

  311.             uint32_t pluginId;

  312.             float value;

  313. 

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

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

  316. 

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

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

  319.         }

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

  321.         {

  322.             uint32_t pluginId;

  323.             float value;

  324. 

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

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

  327. 

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

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

  330.         }

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

  332.         {

  333.             uint32_t pluginId;

  334.             float value;

  335. 

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

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

  338. 

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

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

  341.         }

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

  343.         {

  344.             uint32_t pluginId;

  345.             int32_t channel;

  346. 

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

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

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

  350. 

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

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

  353.         }

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

  355.         {

  356.             uint32_t pluginId, parameterId;

  357.             float value;

  358. 

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

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

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

  362. 

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

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

  365.         }

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

  367.         {

  368.             uint32_t pluginId, parameterId, channel;

  369. 

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

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

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

  373.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  374. 

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

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

  377.         }

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

  379.         {

  380.             uint32_t pluginId, parameterId;

  381.             int32_t cc;

  382. 

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

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

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

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

  387. 

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

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

  390.         }

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

  392.         {

  393.             uint32_t pluginId;

  394.             int32_t index;

  395. 

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

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

  398. 

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

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

  401.         }

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

  403.         {

  404.             uint32_t pluginId;

  405.             int32_t index;

  406. 

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

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

  409. 

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

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

  412.         }

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

  414.         {

  415.             uint32_t pluginId;

  416.             const char* type;

  417.             const char* key;

  418.             const char* value;

  419. 

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

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

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

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

  424. 

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

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

  427. 

  428.             delete[] type;

  429.             delete[] key;

  430.             delete[] value;

  431.         }

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

  433.         {

  434.             uint32_t pluginId;

  435.             const char* cdata;

  436. 

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

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

  439. 

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

  441.                 plugin->setChunkData(cdata);

  442. 

  443.             delete[] cdata;

  444.         }

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

  446.         {

  447.             uint32_t pluginId;

  448. 

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

  450. 

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

  452.                 plugin->prepareForSave();

  453.         }

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

  455.         {

  456.             uint32_t pluginId, channel, note, velocity;

  457. 

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

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

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

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

  462.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  463.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  464.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  465. 

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

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

  468.         }

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

  470.         {

  471.             uint32_t pluginId;

  472.             bool yesNo;

  473. 

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

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

  476. 

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

  478.                 plugin->showCustomUI(yesNo);

  479.         }

  480.         else

  481.         {

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

  483.             return false;

  484.         }

  485. 

  486.         if (! ok)

  487.         {

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

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

  490.         }

  491. 

  492.         return true;

  493.     }

  494. 

  495. private:

  496.     CarlaEngine* const fEngine;

  497. 

  498.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  499. };

  500. 

  501. // -----------------------------------------------------------------------

  502. 

  503. class CarlaEngineNative : public CarlaEngine

  504. {

  505. public:

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

  507.         : CarlaEngine(),

  508.           pHost(host),

  509.           fIsPatchbay(isPatchbay),

  510.           fIsActive(false),

  511.           fIsRunning(false),

  512.           fUiServer(this)

  513.     {

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

  515. 

  516.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  517. 

  518.         // set-up engine

  519.         if (fIsPatchbay)

  520.         {

  521.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  522.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  523.             pData->options.forceStereo         = false;

  524.             pData->options.preferPluginBridges = false;

  525.             pData->options.preferUiBridges     = false;

  526.             init("Carla-Patchbay");

  527.         }

  528.         else

  529.         {

  530.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  531.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  532.             pData->options.forceStereo         = true;

  533.             pData->options.preferPluginBridges = false;

  534.             pData->options.preferUiBridges     = false;

  535.             init("Carla-Rack");

  536.         }

  537. 

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

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

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

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

  542. 

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

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

  545. 

  546.         setCallback(_ui_server_callback, this);

  547.     }

  548. 

  549.     ~CarlaEngineNative() override

  550.     {

  551.         CARLA_SAFE_ASSERT(! fIsActive);

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

  553. 

  554.         pData->aboutToClose = true;

  555.         fIsRunning = false;

  556. 

  557.         removeAllPlugins();

  558.         runPendingRtEvents();

  559.         close();

  560. 

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

  562.     }

  563. 

  564. protected:

  565.     // -------------------------------------

  566.     // CarlaEngine virtual calls

  567. 

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

  569.     {

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

  571. 

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

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

  574. 

  575.         fIsRunning = true;

  576.         CarlaEngine::init(clientName);

  577.         return true;

  578.     }

  579. 

  580.     bool isRunning() const noexcept override

  581.     {

  582.         return fIsRunning;

  583.     }

  584. 

  585.     bool isOffline() const noexcept override

  586.     {

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

  588.     }

  589. 

  590.     EngineType getType() const noexcept override

  591.     {

  592.         return kEngineTypePlugin;

  593.     }

  594. 

  595.     const char* getCurrentDriverName() const noexcept override

  596.     {

  597.         return "Plugin";

  598.     }

  599. 

  600.     // -------------------------------------------------------------------

  601. 

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

  603.     {

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

  605.         {

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

  607.             return retName;

  608.         }

  609. 

  610.         return nullptr;

  611.     }

  612. 

  613.     // -------------------------------------------------------------------

  614. 

  615.     void bufferSizeChanged(const uint32_t newBufferSize)

  616.     {

  617.         pData->bufferSize = newBufferSize;

  618.         CarlaEngine::bufferSizeChanged(newBufferSize);

  619.     }

  620. 

  621.     void sampleRateChanged(const double newSampleRate)

  622.     {

  623.         pData->sampleRate = newSampleRate;

  624.         CarlaEngine::sampleRateChanged(newSampleRate);

  625.     }

  626. 

  627.     // -------------------------------------------------------------------

  628. 

  629.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  630.     {

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

  632. 

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

  634.         fUiServer.writeMsg(fTmpBuf);

  635. 

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

  637.         fUiServer.writeMsg(fTmpBuf);

  638. 

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

  640.         {

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

  642.             fUiServer.writeAndFixMsg(fTmpBuf);

  643.         }

  644.         else

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

  646. 

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

  648.         {

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

  650.             fUiServer.writeAndFixMsg(fTmpBuf);

  651.         }

  652.         else

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

  654. 

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

  656.         {

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

  658.             fUiServer.writeAndFixMsg(fTmpBuf);

  659.         }

  660.         else

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

  662. 

  663.         plugin->getRealName(fTmpBuf);

  664.         fUiServer.writeAndFixMsg(fTmpBuf);

  665. 

  666.         plugin->getLabel(fTmpBuf);

  667.         fUiServer.writeAndFixMsg(fTmpBuf);

  668. 

  669.         plugin->getMaker(fTmpBuf);

  670.         fUiServer.writeAndFixMsg(fTmpBuf);

  671. 

  672.         plugin->getCopyright(fTmpBuf);

  673.         fUiServer.writeAndFixMsg(fTmpBuf);

  674. 

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

  676.         fUiServer.writeMsg(fTmpBuf);

  677. 

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

  679.         fUiServer.writeMsg(fTmpBuf);

  680.     }

  681. 

  682.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  683.     {

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

  685. 

  686.         uint32_t ins, outs, count;

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

  688.         count = plugin->getParameterCount();

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

  690.         fUiServer.writeMsg(fTmpBuf);

  691. 

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

  693.         {

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

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

  696. 

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

  698.             fUiServer.writeMsg(fTmpBuf);

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

  700.             fUiServer.writeMsg(fTmpBuf);

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

  702.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  704.             fUiServer.writeAndFixMsg(fTmpBuf);

  705. 

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

  707.             fUiServer.writeMsg(fTmpBuf);

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

  709.             fUiServer.writeMsg(fTmpBuf);

  710. 

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

  712.             fUiServer.writeMsg(fTmpBuf);

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

  714.             fUiServer.writeMsg(fTmpBuf);

  715.         }

  716.     }

  717. 

  718.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  719.     {

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

  721. 

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

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

  724.         fUiServer.writeMsg(fTmpBuf);

  725. 

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

  727.         {

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

  729.             fUiServer.writeMsg(fTmpBuf);

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

  731.             fUiServer.writeAndFixMsg(fTmpBuf);

  732.         }

  733. 

  734.         count = plugin->getMidiProgramCount();

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

  736.         fUiServer.writeMsg(fTmpBuf);

  737. 

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

  739.         {

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

  741.             fUiServer.writeMsg(fTmpBuf);

  742. 

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

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

  745.             fUiServer.writeMsg(fTmpBuf);

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

  747.             fUiServer.writeAndFixMsg(fTmpBuf);

  748.         }

  749.     }

  750. 

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

  752.     {

  753.         if (! fIsRunning)

  754.             return;

  755.         if (! fUiServer.isOk())

  756.             return;

  757. 

  758.         CarlaPlugin* plugin;

  759. 

  760.         switch (action)

  761.         {

  762.         case ENGINE_CALLBACK_RELOAD_INFO:

  763.             plugin = getPlugin(pluginId);

  764. 

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

  766.             {

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

  768.                 uiServerSendPluginInfo(plugin);

  769.             }

  770.             break;

  771. 

  772.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  773.             plugin = getPlugin(pluginId);

  774. 

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

  776.             {

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

  778.                 uiServerSendPluginParameters(plugin);

  779.             }

  780.             break;

  781. 

  782.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  783.             plugin = getPlugin(pluginId);

  784. 

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

  786.             {

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

  788.                 uiServerSendPluginPrograms(plugin);

  789.             }

  790.             break;

  791. 

  792.         case ENGINE_CALLBACK_RELOAD_ALL:

  793.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  794.             plugin = getPlugin(pluginId);

  795. 

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

  797.             {

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

  799.                 uiServerSendPluginInfo(plugin);

  800.                 uiServerSendPluginParameters(plugin);

  801.                 uiServerSendPluginPrograms(plugin);

  802.             }

  803.             break;

  804. 

  805.         default:

  806.             break;

  807.         }

  808. 

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

  810.         fUiServer.writeMsg(fTmpBuf);

  811. 

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

  813.         fUiServer.writeMsg(fTmpBuf);

  814. 

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

  816.         fUiServer.writeMsg(fTmpBuf);

  817. 

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

  819.         fUiServer.writeMsg(fTmpBuf);

  820. 

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

  822.         fUiServer.writeMsg(fTmpBuf);

  823. 

  824.         fUiServer.writeAndFixMsg(valueStr);

  825.     }

  826. 

  827.     // -------------------------------------------------------------------

  828.     // Plugin parameter calls

  829. 

  830.     uint32_t getParameterCount() const

  831.     {

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

  833.             return plugin->getParameterCount();

  834. 

  835.         return 0;

  836.     }

  837. 

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

  839.     {

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

  841.         {

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

  843.             {

  844.                 static NativeParameter param;

  845.                 static char strBufName[STR_MAX+1];

  846.                 static char strBufUnit[STR_MAX+1];

  847. 

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

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

  850. 

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

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

  853. 

  854.                 unsigned int hints = 0x0;

  855. 

  856.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  857.                     hints |= ::PARAMETER_IS_BOOLEAN;

  858.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  859.                     hints |= ::PARAMETER_IS_INTEGER;

  860.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  861.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  862.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  863.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  864.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  865.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  866.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  867.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  868.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  869.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  870. 

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

  872.                 {

  873.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  874.                         hints |= ::PARAMETER_IS_ENABLED;

  875.                     if (paramData.type == PARAMETER_OUTPUT)

  876.                         hints |= ::PARAMETER_IS_OUTPUT;

  877.                 }

  878. 

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

  880.                 param.name  = strBufName;

  881.                 param.unit  = strBufUnit;

  882.                 param.ranges.def = paramRanges.def;

  883.                 param.ranges.min = paramRanges.min;

  884.                 param.ranges.max = paramRanges.max;

  885.                 param.ranges.step = paramRanges.step;

  886.                 param.ranges.stepSmall = paramRanges.stepSmall;

  887.                 param.ranges.stepLarge = paramRanges.stepLarge;

  888.                 param.scalePointCount = 0; // TODO

  889.                 param.scalePoints = nullptr;

  890. 

  891.                 return &param;

  892.             }

  893.         }

  894. 

  895.         return nullptr;

  896.     }

  897. 

  898.     float getParameterValue(const uint32_t index) const

  899.     {

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

  901.         {

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

  903.                 return plugin->getParameterValue(index);

  904.         }

  905. 

  906.         return 0.0f;

  907.     }

  908. 

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

  910.     {

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

  912.         {

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

  914.             {

  915.                 static char strBuf[STR_MAX+1];

  916.                 carla_zeroChar(strBuf, STR_MAX+1);

  917. 

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

  919. 

  920.                 return strBuf;

  921.             }

  922.         }

  923. 

  924.         return nullptr;

  925.     }

  926. 

  927.     // -------------------------------------------------------------------

  928.     // Plugin midi-program calls

  929. 

  930.     uint32_t getMidiProgramCount() const

  931.     {

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

  933.             return plugin->getMidiProgramCount();

  934. 

  935.         return 0;

  936.     }

  937. 

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

  939.     {

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

  941.         {

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

  943.             {

  944.                 static NativeMidiProgram midiProg;

  945. 

  946.                 {

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

  948. 

  949.                     midiProg.bank    = midiProgData.bank;

  950.                     midiProg.program = midiProgData.program;

  951.                     midiProg.name    = midiProgData.name;

  952.                 }

  953. 

  954.                 return &midiProg;

  955.             }

  956.         }

  957. 

  958.         return nullptr;

  959.     }

  960. 

  961.     // -------------------------------------------------------------------

  962.     // Plugin state calls

  963. 

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

  965.     {

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

  967.         {

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

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

  970.         }

  971.     }

  972. 

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

  974.     {

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

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

  977.     }

  978. 

  979.     // -------------------------------------------------------------------

  980.     // Plugin process calls

  981. 

  982.     void activate()

  983.     {

  984. #if 0

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

  986.         {

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

  988. 

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

  990.                 continue;

  991. 

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

  993.         }

  994. #endif

  995.         fIsActive = true;

  996.     }

  997. 

  998.     void deactivate()

  999.     {

  1000.         fIsActive = false;

  1001. #if 0

  1002.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1003.         {

  1004.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1005. 

  1006.             if (plugin == nullptr || ! plugin->isEnabled())

  1007.                 continue;

  1008. 

  1009.             plugin->setActive(false, true, false);

  1010.         }

  1011. #endif

  1012. 

  1013.         // just in case

  1014.         runPendingRtEvents();

  1015.     }

  1016. 

  1017.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1018.     {

  1019.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1020.         {

  1021.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1022.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1023. 

  1024.             return runPendingRtEvents();;

  1025.         }

  1026. 

  1027.         // ---------------------------------------------------------------

  1028.         // Time Info

  1029. 

  1030.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1031. 

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

  1033.         pData->timeInfo.frame   = timeInfo->frame;

  1034.         pData->timeInfo.usecs   = timeInfo->usecs;

  1035.         pData->timeInfo.valid   = 0x0;

  1036. 

  1037.         if (timeInfo->bbt.valid)

  1038.         {

  1039.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1040. 

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

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

  1043.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

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

  1045. 

  1046.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

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

  1048. 

  1049.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1050.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1051.         }

  1052. 

  1053.         // ---------------------------------------------------------------

  1054.         // initialize events

  1055. 

  1056.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in,  kMaxEngineEventInternalCount);

  1057.         carla_zeroStruct<EngineEvent>(pData->bufEvents.out, kMaxEngineEventInternalCount);

  1058. 

  1059.         // ---------------------------------------------------------------

  1060.         // events input (before processing)

  1061. 

  1062.         {

  1063.             uint32_t engineEventIndex = 0;

  1064. 

  1065.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1066.             {

  1067.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1068.                 EngineEvent&           engineEvent(pData->bufEvents.in[engineEventIndex++]);

  1069. 

  1070.                 engineEvent.time = midiEvent.time;

  1071.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1072. 

  1073.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1074.                     break;

  1075.             }

  1076.         }

  1077. 

  1078.         if (fIsPatchbay)

  1079.         {

  1080.             // -----------------------------------------------------------

  1081.             // create audio buffers

  1082. 

  1083.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1084.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1085.             //uint32_t bufCount[2] = { 2, 2 };

  1086. 

  1087.             // -----------------------------------------------------------

  1088.             // process

  1089. 

  1090.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1091.         }

  1092.         else

  1093.         {

  1094.             // -----------------------------------------------------------

  1095.             // create audio buffers

  1096. 

  1097.             float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1098.             float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1099. 

  1100.             // -----------------------------------------------------------

  1101.             // process

  1102. 

  1103.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1104.         }

  1105. 

  1106.         // ---------------------------------------------------------------

  1107.         // events output (after processing)

  1108. 

  1109.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in, kMaxEngineEventInternalCount);

  1110. 

  1111.         {

  1112.             NativeMidiEvent midiEvent;

  1113. 

  1114.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1115.             {

  1116.                 const EngineEvent& engineEvent(pData->bufEvents.out[i]);

  1117. 

  1118.                 if (engineEvent.type == kEngineEventTypeNull)

  1119.                     break;

  1120. 

  1121.                 midiEvent.time = engineEvent.time;

  1122. 

  1123.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1124.                 {

  1125.                     midiEvent.port = 0;

  1126.                     engineEvent.ctrl.dumpToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1127.                 }

  1128.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1129.                 {

  1130.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1131.                         continue;

  1132. 

  1133.                     midiEvent.port = engineEvent.midi.port;

  1134.                     midiEvent.size = engineEvent.midi.size;

  1135. 

  1136.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1137. 

  1138.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1139.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1140.                 }

  1141.                 else

  1142.                 {

  1143.                     carla_stderr("Unknown event type...");

  1144.                     continue;

  1145.                 }

  1146. 

  1147.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1148.             }

  1149.         }

  1150. 

  1151.         runPendingRtEvents();

  1152.     }

  1153. 

  1154.     // -------------------------------------------------------------------

  1155.     // Plugin UI calls

  1156. 

  1157.     void uiShow(const bool show)

  1158.     {

  1159.         if (show)

  1160.         {

  1161.             CarlaString path(pHost->resourceDir);

  1162.             path += "/carla-plugin";

  1163. 

  1164.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1165. 

  1166.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1167.             fUiServer.start();

  1168. 

  1169.             for (uint i=0; i < pData->curPluginCount; ++i)

  1170.             {

  1171.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1172. 

  1173.                 if (plugin != nullptr && plugin->isEnabled())

  1174.                 {

  1175.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1176.                 }

  1177.             }

  1178.         }

  1179.         else

  1180.         {

  1181.             fUiServer.stop();

  1182.         }

  1183.     }

  1184. 

  1185.     void uiIdle()

  1186.     {

  1187.         CarlaEngine::idle();

  1188.         fUiServer.idle();

  1189. 

  1190.         if (! fUiServer.isOk())

  1191.             return;

  1192. 

  1193.         for (uint i=0; i < pData->curPluginCount; ++i)

  1194.         {

  1195.             const EnginePluginData& plugData(pData->plugins[i]);

  1196.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1197. 

  1198.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1199.             fUiServer.writeMsg(fTmpBuf);

  1200. 

  1201.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1202.             fUiServer.writeMsg(fTmpBuf);

  1203. 

  1204.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1205.             {

  1206.                 if (plugin->isParameterOutput(j))

  1207.                     continue;

  1208. 

  1209.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1210.                 fUiServer.writeMsg(fTmpBuf);

  1211.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1212.                 fUiServer.writeMsg(fTmpBuf);

  1213.             }

  1214.         }

  1215. 

  1216.         switch (fUiServer.getAndResetUiState())

  1217.         {

  1218.         case CarlaExternalUI::UiNone:

  1219.         case CarlaExternalUI::UiShow:

  1220.             break;

  1221.         case CarlaExternalUI::UiCrashed:

  1222.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1223.             break;

  1224.         case CarlaExternalUI::UiHide:

  1225.             pHost->ui_closed(pHost->handle);

  1226.             break;

  1227.         }

  1228.     }

  1229. 

  1230.     // -------------------------------------------------------------------

  1231.     // Plugin state calls

  1232. 

  1233.     char* getState() const

  1234.     {

  1235.         QString string;

  1236.         QTextStream out(&string);

  1237.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1238.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1239.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1240. 

  1241.         bool firstPlugin = true;

  1242.         char strBuf[STR_MAX+1];

  1243. 

  1244.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1245.         {

  1246.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1247. 

  1248.             if (plugin != nullptr && plugin->isEnabled())

  1249.             {

  1250.                 if (! firstPlugin)

  1251.                     out << "\n";

  1252. 

  1253.                 strBuf[0] = '\0';

  1254. 

  1255.                 plugin->getRealName(strBuf);

  1256. 

  1257.                 //if (strBuf[0] != '\0')

  1258.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1259. 

  1260.                 QString content;

  1261.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1262. 

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

  1264.                 out << content;

  1265.                 out << " </Plugin>\n";

  1266. 

  1267.                 firstPlugin = false;

  1268.             }

  1269.         }

  1270. 

  1271.         out << "</CARLA-PROJECT>\n";

  1272. 

  1273.         return strdup(string.toUtf8().constData());

  1274.     }

  1275. 

  1276.     void setState(const char* const data)

  1277.     {

  1278.         QDomDocument xml;

  1279.         xml.setContent(QString(data));

  1280. 

  1281.         QDomNode xmlNode(xml.documentElement());

  1282. 

  1283.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1284.         {

  1285.             carla_stderr2("Not a valid Carla project");

  1286.             return;

  1287.         }

  1288. 

  1289.         //bool pluginsAdded = false;

  1290. 

  1291.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1292.         {

  1293.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1294.             {

  1295.                 SaveState saveState;

  1296.                 fillSaveStateFromXmlNode(saveState, node);

  1297. 

  1298.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr);

  1299. 

  1300.                 const void* extraStuff = nullptr;

  1301. 

  1302.                 // check if using GIG, SF2 or SFZ 16outs

  1303.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1304. 

  1305.                 const PluginType ptype(getPluginTypeFromString(saveState.type));

  1306. 

  1307.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1308.                 {

  1309.                     if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)

  1310.                         extraStuff = "true";

  1311.                 }

  1312. 

  1313.                 // TODO - proper find&load plugins

  1314. 

  1315.                 if (addPlugin(ptype, saveState.binary, saveState.name, saveState.label, saveState.uniqueId, extraStuff))

  1316.                 {

  1317.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1318.                         plugin->loadSaveState(saveState);

  1319.                 }

  1320. 

  1321.                 //pluginsAdded = true;

  1322.             }

  1323.         }

  1324. 

  1325.         //if (pluginsAdded)

  1326.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1327.     }

  1328. 

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

  1330. 

  1331. public:

  1332.     #define handlePtr ((CarlaEngineNative*)handle)

  1333. 

  1334.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1335.     {

  1336.         return new CarlaEngineNative(host, false);

  1337.     }

  1338. 

  1339. #ifdef HAVE_JUCE

  1340.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1341.     {

  1342.         return new CarlaEngineNative(host, true);

  1343.     }

  1344. #endif

  1345. 

  1346.     static void _cleanup(NativePluginHandle handle)

  1347.     {

  1348.         delete handlePtr;

  1349.     }

  1350. 

  1351.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1352.     {

  1353.         return handlePtr->getParameterCount();

  1354.     }

  1355. 

  1356.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1357.     {

  1358.         return handlePtr->getParameterInfo(index);

  1359.     }

  1360. 

  1361.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1362.     {

  1363.         return handlePtr->getParameterValue(index);

  1364.     }

  1365. 

  1366.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index /*, float value*/)

  1367.     {

  1368.         return handlePtr->getParameterText(index /*, value*/);

  1369.     }

  1370. 

  1371.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1372.     {

  1373.         return handlePtr->getMidiProgramCount();

  1374.     }

  1375. 

  1376.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1377.     {

  1378.         return handlePtr->getMidiProgramInfo(index);

  1379.     }

  1380. 

  1381.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1382.     {

  1383.         handlePtr->setParameterValue(index, value);

  1384.     }

  1385. 

  1386.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1387.     {

  1388.         handlePtr->setMidiProgram(channel, bank, program);

  1389.     }

  1390. 

  1391.     static void _ui_show(NativePluginHandle handle, bool show)

  1392.     {

  1393.         handlePtr->uiShow(show);

  1394.     }

  1395. 

  1396.     static void _ui_idle(NativePluginHandle handle)

  1397.     {

  1398.         handlePtr->uiIdle();

  1399.     }

  1400. 

  1401.     static void _activate(NativePluginHandle handle)

  1402.     {

  1403.         handlePtr->activate();

  1404.     }

  1405. 

  1406.     static void _deactivate(NativePluginHandle handle)

  1407.     {

  1408.         handlePtr->deactivate();

  1409.     }

  1410. 

  1411.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1412.     {

  1413.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1414.     }

  1415. 

  1416.     static char* _get_state(NativePluginHandle handle)

  1417.     {

  1418.         return handlePtr->getState();

  1419.     }

  1420. 

  1421.     static void _set_state(NativePluginHandle handle, const char* data)

  1422.     {

  1423.         handlePtr->setState(data);

  1424.     }

  1425. 

  1426.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1427.     {

  1428.         switch(opcode)

  1429.         {

  1430.         case PLUGIN_OPCODE_NULL:

  1431.             return 0;

  1432.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1433.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1434.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1435.             return 0;

  1436.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1437.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1438.             return 0;

  1439.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1440.             handlePtr->offlineModeChanged(value != 0);

  1441.             return 0;

  1442.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1443.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1444.             return 0;

  1445.         }

  1446. 

  1447.         return 0;

  1448. 

  1449.         // unused

  1450.         (void)index;

  1451.         (void)ptr;

  1452.     }

  1453. 

  1454.     // -------------------------------------------------------------------

  1455. 

  1456.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1457.     {

  1458.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1459.     }

  1460. 

  1461.     // -------------------------------------------------------------------

  1462. 

  1463.     #undef handlePtr

  1464. 

  1465. private:

  1466.     const NativeHostDescriptor* const pHost;

  1467. 

  1468.     const bool fIsPatchbay; // rack if false

  1469.     bool fIsActive, fIsRunning;

  1470.     CarlaEngineNativeUI fUiServer;

  1471. 

  1472.     char fTmpBuf[STR_MAX+1];

  1473. 

  1474.     CarlaPlugin* _getFirstPlugin() const noexcept

  1475.     {

  1476.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1477.             return nullptr;

  1478. 

  1479.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1480. 

  1481.         if (plugin == nullptr || ! plugin->isEnabled())

  1482.             return nullptr;

  1483. 

  1484.         return pData->plugins[0].plugin;

  1485.     }

  1486. 

  1487.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1488. };

  1489. 

  1490. // -----------------------------------------------------------------------

  1491. 

  1492. static const NativePluginDescriptor carlaRackDesc = {

  1493.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1494.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1495.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1496.     /* audioIns  */ 2,

  1497.     /* audioOuts */ 2,

  1498.     /* midiIns   */ 1,

  1499.     /* midiOuts  */ 1,

  1500.     /* paramIns  */ 0,

  1501.     /* paramOuts */ 0,

  1502.     /* name      */ "Carla-Rack",

  1503.     /* label     */ "carlarack",

  1504.     /* maker     */ "falkTX",

  1505.     /* copyright */ "GNU GPL v2+",

  1506.     CarlaEngineNative::_instantiateRack,

  1507.     CarlaEngineNative::_cleanup,

  1508.     CarlaEngineNative::_get_parameter_count,

  1509.     CarlaEngineNative::_get_parameter_info,

  1510.     CarlaEngineNative::_get_parameter_value,

  1511.     CarlaEngineNative::_get_parameter_text,

  1512.     CarlaEngineNative::_get_midi_program_count,

  1513.     CarlaEngineNative::_get_midi_program_info,

  1514.     CarlaEngineNative::_set_parameter_value,

  1515.     CarlaEngineNative::_set_midi_program,

  1516.     /* _set_custom_data        */ nullptr,

  1517.     CarlaEngineNative::_ui_show,

  1518.     CarlaEngineNative::_ui_idle,

  1519.     /* _ui_set_parameter_value */ nullptr,

  1520.     /* _ui_set_midi_program    */ nullptr,

  1521.     /* _ui_set_custom_data     */ nullptr,

  1522.     CarlaEngineNative::_activate,

  1523.     CarlaEngineNative::_deactivate,

  1524.     CarlaEngineNative::_process,

  1525.     CarlaEngineNative::_get_state,

  1526.     CarlaEngineNative::_set_state,

  1527.     CarlaEngineNative::_dispatcher

  1528. };

  1529. 

  1530. #if 0 //def HAVE_JUCE

  1531. static const NativePluginDescriptor carlaPatchbayDesc = {

  1532.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1533.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1534.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1535.     /* audioIns  */ 2,

  1536.     /* audioOuts */ 2,

  1537.     /* midiIns   */ 1,

  1538.     /* midiOuts  */ 1,

  1539.     /* paramIns  */ 0,

  1540.     /* paramOuts */ 0,

  1541.     /* name      */ "Carla-Patchbay",

  1542.     /* label     */ "carlapatchbay",

  1543.     /* maker     */ "falkTX",

  1544.     /* copyright */ "GNU GPL v2+",

  1545.     CarlaEngineNative::_instantiatePatchbay,

  1546.     CarlaEngineNative::_cleanup,

  1547.     CarlaEngineNative::_get_parameter_count,

  1548.     CarlaEngineNative::_get_parameter_info,

  1549.     CarlaEngineNative::_get_parameter_value,

  1550.     CarlaEngineNative::_get_parameter_text,

  1551.     CarlaEngineNative::_get_midi_program_count,

  1552.     CarlaEngineNative::_get_midi_program_info,

  1553.     CarlaEngineNative::_set_parameter_value,

  1554.     CarlaEngineNative::_set_midi_program,

  1555.     /* _set_custom_data        */ nullptr,

  1556.     CarlaEngineNative::_ui_show,

  1557.     CarlaEngineNative::_ui_idle,

  1558.     /* _ui_set_parameter_value */ nullptr,

  1559.     /* _ui_set_midi_program    */ nullptr,

  1560.     /* _ui_set_custom_data     */ nullptr,

  1561.     CarlaEngineNative::_activate,

  1562.     CarlaEngineNative::_deactivate,

  1563.     CarlaEngineNative::_process,

  1564.     CarlaEngineNative::_get_state,

  1565.     CarlaEngineNative::_set_state,

  1566.     CarlaEngineNative::_dispatcher

  1567. };

  1568. #endif

  1569. 

  1570. // -----------------------------------------------------------------------

  1571. 

  1572. CARLA_BACKEND_END_NAMESPACE

  1573. 

  1574. CARLA_EXPORT

  1575. void carla_register_native_plugin_carla();

  1576. 

  1577. void carla_register_native_plugin_carla()

  1578. {

  1579.     CARLA_BACKEND_USE_NAMESPACE;

  1580.     carla_register_native_plugin(&carlaRackDesc);

  1581. #if 0 //def HAVE_JUCE

  1582.     carla_register_native_plugin(&carlaPatchbayDesc);

  1583. #endif

  1584. }

  1585. 

  1586. // -----------------------------------------------------------------------

  1587. // Extra stuff for linking purposes

  1588. 

  1589. #ifdef CARLA_PLUGIN_EXPORT

  1590. 

  1591. CARLA_BACKEND_START_NAMESPACE

  1592. 

  1593. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1594. 

  1595. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1596. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

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

  1598. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1599. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1600. 

  1601. # ifdef HAVE_JUCE

  1602. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1603. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

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

  1605. const char* const* CarlaEngine::getJuceApiDeviceNames(const unsigned int) { return nullptr; }

  1606. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1607. # endif

  1608. 

  1609. CARLA_BACKEND_END_NAMESPACE

  1610. 

  1611. #ifdef WANT_DSSI

  1612. # include "CarlaDssiUtils.cpp"

  1613. #endif

  1614. 

  1615. #include "CarlaStateUtils.cpp"

  1616. 

  1617. #endif

  1618. 

  1619. // -----------------------------------------------------------------------