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Carla
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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) noexcept 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.             try {

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

  82.             } catch(...) {}

  83. 

  84.             delete[] valueStr;

  85.         }

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

  87.         {

  88.             const char* filename;

  89. 

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

  91. 

  92.             try {

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

  94.             } catch(...) {}

  95. 

  96.             delete[] filename;

  97.         }

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

  99.         {

  100.             const char* filename;

  101. 

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

  103. 

  104.             try {

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

  106.             } catch(...) {}

  107. 

  108.             delete[] filename;

  109.         }

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

  111.         {

  112.             const char* filename;

  113. 

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

  115. 

  116.             try {

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

  118.             } catch(...) {}

  119. 

  120.             delete[] filename;

  121.         }

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

  123.         {

  124.             int32_t groupA, portA, groupB, portB;

  125. 

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

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

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

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

  130. 

  131.             try {

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

  133.             } catch(...) {}

  134.         }

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

  136.         {

  137.             uint32_t connectionId;

  138. 

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

  140. 

  141.             try {

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

  143.             } catch(...) {}

  144.         }

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

  146.         {

  147.             try {

  148.                 ok = fEngine->patchbayRefresh();

  149.             } catch(...) {}

  150.         }

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

  152.         {

  153.             fEngine->transportPlay();

  154.         }

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

  156.         {

  157.             fEngine->transportPause();

  158.         }

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

  160.         {

  161.             uint64_t frame;

  162. 

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

  164. 

  165.             fEngine->transportRelocate(frame);

  166.         }

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

  168.         {

  169.             uint32_t btype, ptype;

  170.             const char* filename = nullptr;

  171.             const char* name;

  172.             const char* label;

  173.             int64_t uniqueId;

  174. 

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

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

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

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

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

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

  181. 

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

  183.             {

  184.                 delete[] filename;

  185.                 filename = nullptr;

  186.             }

  187. 

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

  189.             {

  190.                 delete[] name;

  191.                 name = nullptr;

  192.             }

  193. 

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

  195. 

  196.             if (filename != nullptr)

  197.                 delete[] filename;

  198.             if (name != nullptr)

  199.                 delete[] name;

  200.             delete[] label;

  201.         }

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

  203.         {

  204.             uint32_t pluginId;

  205. 

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

  207. 

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

  209.         }

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

  211.         {

  212.             ok = fEngine->removeAllPlugins();

  213.         }

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

  215.         {

  216.             uint32_t pluginId;

  217.             const char* newName;

  218. 

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

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

  221. 

  222.             // TODO

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

  224. 

  225.             delete[] newName;

  226.         }

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

  228.         {

  229.             uint32_t pluginId;

  230. 

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

  232. 

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

  234.         }

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

  236.         {

  237.             uint32_t pluginId;

  238. 

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

  240. 

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

  242.         }

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

  244.         {

  245.             uint32_t pluginIdA, pluginIdB;

  246. 

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

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

  249. 

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

  251.         }

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

  253.         {

  254.             uint32_t pluginId;

  255.             const char* filename;

  256. 

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

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

  259. 

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

  261.                 plugin->loadStateFromFile(filename);

  262. 

  263.             delete[] filename;

  264.         }

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

  266.         {

  267.             uint32_t pluginId;

  268.             const char* filename;

  269. 

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

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

  272. 

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

  274.                 plugin->saveStateToFile(filename);

  275. 

  276.             delete[] filename;

  277.         }

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

  279.         {

  280.             uint32_t pluginId, option;

  281.             bool yesNo;

  282. 

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

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

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

  286. 

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

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

  289.         }

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

  291.         {

  292.             uint32_t pluginId;

  293.             bool onOff;

  294. 

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

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

  297. 

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

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

  300.         }

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

  302.         {

  303.             uint32_t pluginId;

  304.             float value;

  305. 

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

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

  308. 

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

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

  311.         }

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

  313.         {

  314.             uint32_t pluginId;

  315.             float value;

  316. 

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

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

  319. 

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

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

  322.         }

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

  324.         {

  325.             uint32_t pluginId;

  326.             float value;

  327. 

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

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

  330. 

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

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

  333.         }

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

  335.         {

  336.             uint32_t pluginId;

  337.             float value;

  338. 

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

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

  341. 

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

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

  344.         }

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

  346.         {

  347.             uint32_t pluginId;

  348.             float value;

  349. 

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

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

  352. 

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

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

  355.         }

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

  357.         {

  358.             uint32_t pluginId;

  359.             int32_t channel;

  360. 

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

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

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

  364. 

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

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

  367.         }

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

  369.         {

  370.             uint32_t pluginId, parameterId;

  371.             float value;

  372. 

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

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

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

  376. 

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

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

  379.         }

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

  381.         {

  382.             uint32_t pluginId, parameterId, channel;

  383. 

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

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

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

  387.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  388. 

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

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

  391.         }

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

  393.         {

  394.             uint32_t pluginId, parameterId;

  395.             int32_t cc;

  396. 

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

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

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

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

  401. 

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

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

  404.         }

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

  406.         {

  407.             uint32_t pluginId;

  408.             int32_t index;

  409. 

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

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

  412. 

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

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

  415.         }

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

  417.         {

  418.             uint32_t pluginId;

  419.             int32_t index;

  420. 

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

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

  423. 

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

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

  426.         }

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

  428.         {

  429.             uint32_t pluginId;

  430.             const char* type;

  431.             const char* key;

  432.             const char* value;

  433. 

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

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

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

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

  438. 

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

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

  441. 

  442.             delete[] type;

  443.             delete[] key;

  444.             delete[] value;

  445.         }

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

  447.         {

  448.             uint32_t pluginId;

  449.             const char* cdata;

  450. 

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

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

  453. 

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

  455.                 plugin->setChunkData(cdata);

  456. 

  457.             delete[] cdata;

  458.         }

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

  460.         {

  461.             uint32_t pluginId;

  462. 

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

  464. 

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

  466.                 plugin->prepareForSave();

  467.         }

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

  469.         {

  470.             uint32_t pluginId;

  471. 

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

  473. 

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

  475.                 plugin->randomizeParameters();

  476.         }

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

  478.         {

  479.             uint32_t pluginId, channel, note, velocity;

  480. 

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

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

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

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

  485.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  486.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  487.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  488. 

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

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

  491.         }

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

  493.         {

  494.             uint32_t pluginId;

  495.             bool yesNo;

  496. 

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

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

  499. 

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

  501.                 plugin->showCustomUI(yesNo);

  502.         }

  503.         else

  504.         {

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

  506.             return false;

  507.         }

  508. 

  509.         if (! ok)

  510.         {

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

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

  513.         }

  514. 

  515.         return true;

  516.     }

  517. 

  518. private:

  519.     CarlaEngine* const fEngine;

  520. 

  521.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  522. };

  523. 

  524. // -----------------------------------------------------------------------

  525. 

  526. class CarlaEngineNative : public CarlaEngine

  527. {

  528. public:

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

  530.         : CarlaEngine(),

  531.           pHost(host),

  532.           fIsPatchbay(isPatchbay),

  533.           fIsActive(false),

  534.           fIsRunning(false),

  535.           fUiServer(this)

  536.     {

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

  538. 

  539.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  540. 

  541.         // set-up engine

  542.         if (fIsPatchbay)

  543.         {

  544.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  545.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  546.             pData->options.forceStereo         = false;

  547.             pData->options.preferPluginBridges = false;

  548.             pData->options.preferUiBridges     = false;

  549.             init("Carla-Patchbay");

  550.         }

  551.         else

  552.         {

  553.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  554.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  555.             pData->options.forceStereo         = true;

  556.             pData->options.preferPluginBridges = false;

  557.             pData->options.preferUiBridges     = false;

  558.             init("Carla-Rack");

  559.         }

  560. 

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

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

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

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

  565. 

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

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

  568. 

  569.         setCallback(_ui_server_callback, this);

  570.     }

  571. 

  572.     ~CarlaEngineNative() override

  573.     {

  574.         CARLA_SAFE_ASSERT(! fIsActive);

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

  576. 

  577.         pData->aboutToClose = true;

  578.         fIsRunning = false;

  579. 

  580.         removeAllPlugins();

  581.         runPendingRtEvents();

  582.         close();

  583. 

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

  585.     }

  586. 

  587. protected:

  588.     // -------------------------------------

  589.     // CarlaEngine virtual calls

  590. 

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

  592.     {

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

  594. 

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

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

  597. 

  598.         fIsRunning = true;

  599.         CarlaEngine::init(clientName);

  600.         return true;

  601.     }

  602. 

  603.     bool isRunning() const noexcept override

  604.     {

  605.         return fIsRunning;

  606.     }

  607. 

  608.     bool isOffline() const noexcept override

  609.     {

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

  611.     }

  612. 

  613.     EngineType getType() const noexcept override

  614.     {

  615.         return kEngineTypePlugin;

  616.     }

  617. 

  618.     const char* getCurrentDriverName() const noexcept override

  619.     {

  620.         return "Plugin";

  621.     }

  622. 

  623.     // -------------------------------------------------------------------

  624. 

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

  626.     {

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

  628.         {

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

  630.             return retName;

  631.         }

  632. 

  633.         return nullptr;

  634.     }

  635. 

  636.     // -------------------------------------------------------------------

  637. 

  638.     void bufferSizeChanged(const uint32_t newBufferSize)

  639.     {

  640.         pData->bufferSize = newBufferSize;

  641.         CarlaEngine::bufferSizeChanged(newBufferSize);

  642.     }

  643. 

  644.     void sampleRateChanged(const double newSampleRate)

  645.     {

  646.         pData->sampleRate = newSampleRate;

  647.         CarlaEngine::sampleRateChanged(newSampleRate);

  648.     }

  649. 

  650.     // -------------------------------------------------------------------

  651. 

  652.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  653.     {

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

  655. 

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

  657.         fUiServer.writeMsg(fTmpBuf);

  658. 

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

  660.         fUiServer.writeMsg(fTmpBuf);

  661. 

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

  663.         {

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

  665.             fUiServer.writeAndFixMsg(fTmpBuf);

  666.         }

  667.         else

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

  669. 

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

  671.         {

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

  673.             fUiServer.writeAndFixMsg(fTmpBuf);

  674.         }

  675.         else

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

  677. 

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

  679.         {

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

  681.             fUiServer.writeAndFixMsg(fTmpBuf);

  682.         }

  683.         else

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

  685. 

  686.         plugin->getRealName(fTmpBuf);

  687.         fUiServer.writeAndFixMsg(fTmpBuf);

  688. 

  689.         plugin->getLabel(fTmpBuf);

  690.         fUiServer.writeAndFixMsg(fTmpBuf);

  691. 

  692.         plugin->getMaker(fTmpBuf);

  693.         fUiServer.writeAndFixMsg(fTmpBuf);

  694. 

  695.         plugin->getCopyright(fTmpBuf);

  696.         fUiServer.writeAndFixMsg(fTmpBuf);

  697. 

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

  699.         fUiServer.writeMsg(fTmpBuf);

  700. 

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

  702.         fUiServer.writeMsg(fTmpBuf);

  703.     }

  704. 

  705.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  706.     {

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

  708. 

  709.         uint32_t ins, outs, count;

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

  711.         count = plugin->getParameterCount();

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

  713.         fUiServer.writeMsg(fTmpBuf);

  714. 

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

  716.         {

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

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

  719. 

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

  721.             fUiServer.writeMsg(fTmpBuf);

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

  723.             fUiServer.writeMsg(fTmpBuf);

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

  725.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  727.             fUiServer.writeAndFixMsg(fTmpBuf);

  728. 

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

  730.             fUiServer.writeMsg(fTmpBuf);

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

  732.             fUiServer.writeMsg(fTmpBuf);

  733. 

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

  735.             fUiServer.writeMsg(fTmpBuf);

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

  737.             fUiServer.writeMsg(fTmpBuf);

  738.         }

  739.     }

  740. 

  741.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  742.     {

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

  744. 

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

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

  747.         fUiServer.writeMsg(fTmpBuf);

  748. 

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

  750.         {

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

  752.             fUiServer.writeMsg(fTmpBuf);

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

  754.             fUiServer.writeAndFixMsg(fTmpBuf);

  755.         }

  756. 

  757.         count = plugin->getMidiProgramCount();

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

  759.         fUiServer.writeMsg(fTmpBuf);

  760. 

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

  762.         {

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

  764.             fUiServer.writeMsg(fTmpBuf);

  765. 

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

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

  768.             fUiServer.writeMsg(fTmpBuf);

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

  770.             fUiServer.writeAndFixMsg(fTmpBuf);

  771.         }

  772.     }

  773. 

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

  775.     {

  776.         if (! fIsRunning)

  777.             return;

  778.         if (! fUiServer.isOk())

  779.             return;

  780. 

  781.         CarlaPlugin* plugin;

  782. 

  783.         switch (action)

  784.         {

  785.         case ENGINE_CALLBACK_RELOAD_INFO:

  786.             plugin = getPlugin(pluginId);

  787. 

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

  789.             {

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

  791.                 uiServerSendPluginInfo(plugin);

  792.             }

  793.             break;

  794. 

  795.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  796.             plugin = getPlugin(pluginId);

  797. 

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

  799.             {

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

  801.                 uiServerSendPluginParameters(plugin);

  802.             }

  803.             break;

  804. 

  805.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  806.             plugin = getPlugin(pluginId);

  807. 

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

  809.             {

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

  811.                 uiServerSendPluginPrograms(plugin);

  812.             }

  813.             break;

  814. 

  815.         case ENGINE_CALLBACK_RELOAD_ALL:

  816.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  817.             plugin = getPlugin(pluginId);

  818. 

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

  820.             {

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

  822.                 uiServerSendPluginInfo(plugin);

  823.                 uiServerSendPluginParameters(plugin);

  824.                 uiServerSendPluginPrograms(plugin);

  825.             }

  826.             break;

  827. 

  828.         default:

  829.             break;

  830.         }

  831. 

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

  833.         fUiServer.writeMsg(fTmpBuf);

  834. 

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

  836.         fUiServer.writeMsg(fTmpBuf);

  837. 

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

  839.         fUiServer.writeMsg(fTmpBuf);

  840. 

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

  842.         fUiServer.writeMsg(fTmpBuf);

  843. 

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

  845.         fUiServer.writeMsg(fTmpBuf);

  846. 

  847.         fUiServer.writeAndFixMsg(valueStr);

  848.     }

  849. 

  850.     // -------------------------------------------------------------------

  851.     // Plugin parameter calls

  852. 

  853.     uint32_t getParameterCount() const

  854.     {

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

  856.             return plugin->getParameterCount();

  857. 

  858.         return 0;

  859.     }

  860. 

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

  862.     {

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

  864.         {

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

  866.             {

  867.                 static NativeParameter param;

  868.                 static char strBufName[STR_MAX+1];

  869.                 static char strBufUnit[STR_MAX+1];

  870. 

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

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

  873. 

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

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

  876. 

  877.                 unsigned int hints = 0x0;

  878. 

  879.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  880.                     hints |= ::PARAMETER_IS_BOOLEAN;

  881.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  882.                     hints |= ::PARAMETER_IS_INTEGER;

  883.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  884.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  885.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  886.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  887.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  888.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  889.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  890.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  891.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  892.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  893. 

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

  895.                 {

  896.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  897.                         hints |= ::PARAMETER_IS_ENABLED;

  898.                     if (paramData.type == PARAMETER_OUTPUT)

  899.                         hints |= ::PARAMETER_IS_OUTPUT;

  900.                 }

  901. 

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

  903.                 param.name  = strBufName;

  904.                 param.unit  = strBufUnit;

  905.                 param.ranges.def = paramRanges.def;

  906.                 param.ranges.min = paramRanges.min;

  907.                 param.ranges.max = paramRanges.max;

  908.                 param.ranges.step = paramRanges.step;

  909.                 param.ranges.stepSmall = paramRanges.stepSmall;

  910.                 param.ranges.stepLarge = paramRanges.stepLarge;

  911.                 param.scalePointCount = 0; // TODO

  912.                 param.scalePoints = nullptr;

  913. 

  914.                 return &param;

  915.             }

  916.         }

  917. 

  918.         return nullptr;

  919.     }

  920. 

  921.     float getParameterValue(const uint32_t index) const

  922.     {

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

  924.         {

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

  926.                 return plugin->getParameterValue(index);

  927.         }

  928. 

  929.         return 0.0f;

  930.     }

  931. 

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

  933.     {

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

  935.         {

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

  937.             {

  938.                 static char strBuf[STR_MAX+1];

  939.                 carla_zeroChar(strBuf, STR_MAX+1);

  940. 

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

  942. 

  943.                 return strBuf;

  944.             }

  945.         }

  946. 

  947.         return nullptr;

  948.     }

  949. 

  950.     // -------------------------------------------------------------------

  951.     // Plugin midi-program calls

  952. 

  953.     uint32_t getMidiProgramCount() const

  954.     {

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

  956.             return plugin->getMidiProgramCount();

  957. 

  958.         return 0;

  959.     }

  960. 

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

  962.     {

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

  964.         {

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

  966.             {

  967.                 static NativeMidiProgram midiProg;

  968. 

  969.                 {

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

  971. 

  972.                     midiProg.bank    = midiProgData.bank;

  973.                     midiProg.program = midiProgData.program;

  974.                     midiProg.name    = midiProgData.name;

  975.                 }

  976. 

  977.                 return &midiProg;

  978.             }

  979.         }

  980. 

  981.         return nullptr;

  982.     }

  983. 

  984.     // -------------------------------------------------------------------

  985.     // Plugin state calls

  986. 

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

  988.     {

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

  990.         {

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

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

  993.         }

  994.     }

  995. 

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

  997.     {

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

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

  1000.     }

  1001. 

  1002.     // -------------------------------------------------------------------

  1003.     // Plugin process calls

  1004. 

  1005.     void activate()

  1006.     {

  1007. #if 0

  1008.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1009.         {

  1010.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1011. 

  1012.             if (plugin == nullptr || ! plugin->isEnabled())

  1013.                 continue;

  1014. 

  1015.             plugin->setActive(true, true, false);

  1016.         }

  1017. #endif

  1018.         fIsActive = true;

  1019.     }

  1020. 

  1021.     void deactivate()

  1022.     {

  1023.         fIsActive = false;

  1024. #if 0

  1025.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1026.         {

  1027.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1028. 

  1029.             if (plugin == nullptr || ! plugin->isEnabled())

  1030.                 continue;

  1031. 

  1032.             plugin->setActive(false, true, false);

  1033.         }

  1034. #endif

  1035. 

  1036.         // just in case

  1037.         runPendingRtEvents();

  1038.     }

  1039. 

  1040.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1041.     {

  1042.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1043.         {

  1044.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1045.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1046. 

  1047.             return runPendingRtEvents();;

  1048.         }

  1049. 

  1050.         // ---------------------------------------------------------------

  1051.         // Time Info

  1052. 

  1053.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1054. 

  1055.         pData->timeInfo.playing = timeInfo->playing;

  1056.         pData->timeInfo.frame   = timeInfo->frame;

  1057.         pData->timeInfo.usecs   = timeInfo->usecs;

  1058.         pData->timeInfo.valid   = 0x0;

  1059. 

  1060.         if (timeInfo->bbt.valid)

  1061.         {

  1062.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1063. 

  1064.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1065.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1066.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1067.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1068. 

  1069.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1070.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1071. 

  1072.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1073.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1074.         }

  1075. 

  1076.         // ---------------------------------------------------------------

  1077.         // initialize events

  1078. 

  1079.         carla_zeroStruct<EngineEvent>(pData->events.in,  kMaxEngineEventInternalCount);

  1080.         carla_zeroStruct<EngineEvent>(pData->events.out, kMaxEngineEventInternalCount);

  1081. 

  1082.         // ---------------------------------------------------------------

  1083.         // events input (before processing)

  1084. 

  1085.         {

  1086.             uint32_t engineEventIndex = 0;

  1087. 

  1088.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1089.             {

  1090.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1091.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1092. 

  1093.                 engineEvent.time = midiEvent.time;

  1094.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1095. 

  1096.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1097.                     break;

  1098.             }

  1099.         }

  1100. 

  1101.         if (fIsPatchbay)

  1102.         {

  1103.             // -----------------------------------------------------------

  1104.             // create audio buffers

  1105. 

  1106.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1107.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1108.             //uint32_t bufCount[2] = { 2, 2 };

  1109. 

  1110.             // -----------------------------------------------------------

  1111.             // process

  1112. 

  1113.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1114.         }

  1115.         else

  1116.         {

  1117.             // -----------------------------------------------------------

  1118.             // create audio buffers

  1119. 

  1120.             const float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1121.                   float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1122. 

  1123.             // -----------------------------------------------------------

  1124.             // process

  1125. 

  1126.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1127.         }

  1128. 

  1129.         // ---------------------------------------------------------------

  1130.         // events output (after processing)

  1131. 

  1132.         carla_zeroStruct<EngineEvent>(pData->events.in, kMaxEngineEventInternalCount);

  1133. 

  1134.         {

  1135.             NativeMidiEvent midiEvent;

  1136. 

  1137.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1138.             {

  1139.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1140. 

  1141.                 if (engineEvent.type == kEngineEventTypeNull)

  1142.                     break;

  1143. 

  1144.                 midiEvent.time = engineEvent.time;

  1145. 

  1146.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1147.                 {

  1148.                     midiEvent.port = 0;

  1149.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1150.                 }

  1151.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1152.                 {

  1153.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1154.                         continue;

  1155. 

  1156.                     midiEvent.port = engineEvent.midi.port;

  1157.                     midiEvent.size = engineEvent.midi.size;

  1158. 

  1159.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1160. 

  1161.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1162.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1163.                 }

  1164.                 else

  1165.                 {

  1166.                     carla_stderr("Unknown event type...");

  1167.                     continue;

  1168.                 }

  1169. 

  1170.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1171.             }

  1172.         }

  1173. 

  1174.         runPendingRtEvents();

  1175.     }

  1176. 

  1177.     // -------------------------------------------------------------------

  1178.     // Plugin UI calls

  1179. 

  1180.     void uiShow(const bool show)

  1181.     {

  1182.         if (show)

  1183.         {

  1184.             CarlaString path(pHost->resourceDir);

  1185.             path += "/carla-plugin";

  1186. 

  1187.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1188. 

  1189.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1190.             fUiServer.start();

  1191. 

  1192.             for (uint i=0; i < pData->curPluginCount; ++i)

  1193.             {

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

  1195. 

  1196.                 if (plugin != nullptr && plugin->isEnabled())

  1197.                 {

  1198.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1199.                 }

  1200.             }

  1201.         }

  1202.         else

  1203.         {

  1204.             fUiServer.stop();

  1205.         }

  1206.     }

  1207. 

  1208.     void uiIdle()

  1209.     {

  1210.         CarlaEngine::idle();

  1211.         fUiServer.idle();

  1212. 

  1213.         if (! fUiServer.isOk())

  1214.             return;

  1215. 

  1216.         for (uint i=0; i < pData->curPluginCount; ++i)

  1217.         {

  1218.             const EnginePluginData& plugData(pData->plugins[i]);

  1219.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1220. 

  1221.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1222.             fUiServer.writeMsg(fTmpBuf);

  1223. 

  1224.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1225.             fUiServer.writeMsg(fTmpBuf);

  1226. 

  1227.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1228.             {

  1229.                 if (plugin->isParameterOutput(j))

  1230.                     continue;

  1231. 

  1232.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1233.                 fUiServer.writeMsg(fTmpBuf);

  1234.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1235.                 fUiServer.writeMsg(fTmpBuf);

  1236.             }

  1237.         }

  1238. 

  1239.         switch (fUiServer.getAndResetUiState())

  1240.         {

  1241.         case CarlaExternalUI::UiNone:

  1242.         case CarlaExternalUI::UiShow:

  1243.             break;

  1244.         case CarlaExternalUI::UiCrashed:

  1245.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1246.             break;

  1247.         case CarlaExternalUI::UiHide:

  1248.             pHost->ui_closed(pHost->handle);

  1249.             break;

  1250.         }

  1251.     }

  1252. 

  1253.     // -------------------------------------------------------------------

  1254.     // Plugin state calls

  1255. 

  1256.     char* getState() const

  1257.     {

  1258.         QString string;

  1259.         QTextStream out(&string);

  1260.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1261.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1262.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1263. 

  1264.         bool firstPlugin = true;

  1265.         char strBuf[STR_MAX+1];

  1266. 

  1267.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1268.         {

  1269.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1270. 

  1271.             if (plugin != nullptr && plugin->isEnabled())

  1272.             {

  1273.                 if (! firstPlugin)

  1274.                     out << "\n";

  1275. 

  1276.                 strBuf[0] = '\0';

  1277. 

  1278.                 plugin->getRealName(strBuf);

  1279. 

  1280.                 //if (strBuf[0] != '\0')

  1281.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1282. 

  1283.                 QString content;

  1284.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1285. 

  1286.                 out << " <Plugin>\n";

  1287.                 out << content;

  1288.                 out << " </Plugin>\n";

  1289. 

  1290.                 firstPlugin = false;

  1291.             }

  1292.         }

  1293. 

  1294.         out << "</CARLA-PROJECT>\n";

  1295. 

  1296.         return strdup(string.toUtf8().constData());

  1297.     }

  1298. 

  1299.     void setState(const char* const data)

  1300.     {

  1301.         QDomDocument xml;

  1302.         xml.setContent(QString(data));

  1303. 

  1304.         QDomNode xmlNode(xml.documentElement());

  1305. 

  1306.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1307.         {

  1308.             carla_stderr2("Not a valid Carla project");

  1309.             return;

  1310.         }

  1311. 

  1312.         //bool pluginsAdded = false;

  1313. 

  1314.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1315.         {

  1316.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1317.             {

  1318.                 SaveState saveState;

  1319.                 fillSaveStateFromXmlNode(saveState, node);

  1320. 

  1321.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr);

  1322. 

  1323.                 const void* extraStuff = nullptr;

  1324. 

  1325.                 // check if using GIG, SF2 or SFZ 16outs

  1326.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1327. 

  1328.                 const PluginType ptype(getPluginTypeFromString(saveState.type));

  1329. 

  1330.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1331.                 {

  1332.                     if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)

  1333.                         extraStuff = "true";

  1334.                 }

  1335. 

  1336.                 // TODO - proper find&load plugins

  1337. 

  1338.                 if (addPlugin(ptype, saveState.binary, saveState.name, saveState.label, saveState.uniqueId, extraStuff))

  1339.                 {

  1340.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1341.                         plugin->loadSaveState(saveState);

  1342.                 }

  1343. 

  1344.                 //pluginsAdded = true;

  1345.             }

  1346.         }

  1347. 

  1348.         //if (pluginsAdded)

  1349.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1350.     }

  1351. 

  1352.     // -------------------------------------------------------------------

  1353. 

  1354. public:

  1355.     #define handlePtr ((CarlaEngineNative*)handle)

  1356. 

  1357.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1358.     {

  1359.         return new CarlaEngineNative(host, false);

  1360.     }

  1361. 

  1362. #ifdef HAVE_JUCE

  1363.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1364.     {

  1365.         return new CarlaEngineNative(host, true);

  1366.     }

  1367. #endif

  1368. 

  1369.     static void _cleanup(NativePluginHandle handle)

  1370.     {

  1371.         delete handlePtr;

  1372.     }

  1373. 

  1374.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1375.     {

  1376.         return handlePtr->getParameterCount();

  1377.     }

  1378. 

  1379.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1380.     {

  1381.         return handlePtr->getParameterInfo(index);

  1382.     }

  1383. 

  1384.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1385.     {

  1386.         return handlePtr->getParameterValue(index);

  1387.     }

  1388. 

  1389.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index /*, float value*/)

  1390.     {

  1391.         return handlePtr->getParameterText(index /*, value*/);

  1392.     }

  1393. 

  1394.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1395.     {

  1396.         return handlePtr->getMidiProgramCount();

  1397.     }

  1398. 

  1399.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1400.     {

  1401.         return handlePtr->getMidiProgramInfo(index);

  1402.     }

  1403. 

  1404.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1405.     {

  1406.         handlePtr->setParameterValue(index, value);

  1407.     }

  1408. 

  1409.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1410.     {

  1411.         handlePtr->setMidiProgram(channel, bank, program);

  1412.     }

  1413. 

  1414.     static void _ui_show(NativePluginHandle handle, bool show)

  1415.     {

  1416.         handlePtr->uiShow(show);

  1417.     }

  1418. 

  1419.     static void _ui_idle(NativePluginHandle handle)

  1420.     {

  1421.         handlePtr->uiIdle();

  1422.     }

  1423. 

  1424.     static void _activate(NativePluginHandle handle)

  1425.     {

  1426.         handlePtr->activate();

  1427.     }

  1428. 

  1429.     static void _deactivate(NativePluginHandle handle)

  1430.     {

  1431.         handlePtr->deactivate();

  1432.     }

  1433. 

  1434.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1435.     {

  1436.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1437.     }

  1438. 

  1439.     static char* _get_state(NativePluginHandle handle)

  1440.     {

  1441.         return handlePtr->getState();

  1442.     }

  1443. 

  1444.     static void _set_state(NativePluginHandle handle, const char* data)

  1445.     {

  1446.         handlePtr->setState(data);

  1447.     }

  1448. 

  1449.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1450.     {

  1451.         switch(opcode)

  1452.         {

  1453.         case PLUGIN_OPCODE_NULL:

  1454.             return 0;

  1455.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1456.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1457.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1458.             return 0;

  1459.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1460.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1461.             return 0;

  1462.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1463.             handlePtr->offlineModeChanged(value != 0);

  1464.             return 0;

  1465.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1466.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1467.             return 0;

  1468.         }

  1469. 

  1470.         return 0;

  1471. 

  1472.         // unused

  1473.         (void)index;

  1474.         (void)ptr;

  1475.     }

  1476. 

  1477.     // -------------------------------------------------------------------

  1478. 

  1479.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1480.     {

  1481.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1482.     }

  1483. 

  1484.     // -------------------------------------------------------------------

  1485. 

  1486.     #undef handlePtr

  1487. 

  1488. private:

  1489.     const NativeHostDescriptor* const pHost;

  1490. 

  1491.     const bool fIsPatchbay; // rack if false

  1492.     bool fIsActive, fIsRunning;

  1493.     CarlaEngineNativeUI fUiServer;

  1494. 

  1495.     char fTmpBuf[STR_MAX+1];

  1496. 

  1497.     CarlaPlugin* _getFirstPlugin() const noexcept

  1498.     {

  1499.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1500.             return nullptr;

  1501. 

  1502.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1503. 

  1504.         if (plugin == nullptr || ! plugin->isEnabled())

  1505.             return nullptr;

  1506. 

  1507.         return pData->plugins[0].plugin;

  1508.     }

  1509. 

  1510.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1511. };

  1512. 

  1513. // -----------------------------------------------------------------------

  1514. 

  1515. static const NativePluginDescriptor carlaRackDesc = {

  1516.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1517.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1518.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1519.     /* audioIns  */ 2,

  1520.     /* audioOuts */ 2,

  1521.     /* midiIns   */ 1,

  1522.     /* midiOuts  */ 1,

  1523.     /* paramIns  */ 0,

  1524.     /* paramOuts */ 0,

  1525.     /* name      */ "Carla-Rack",

  1526.     /* label     */ "carlarack",

  1527.     /* maker     */ "falkTX",

  1528.     /* copyright */ "GNU GPL v2+",

  1529.     CarlaEngineNative::_instantiateRack,

  1530.     CarlaEngineNative::_cleanup,

  1531.     CarlaEngineNative::_get_parameter_count,

  1532.     CarlaEngineNative::_get_parameter_info,

  1533.     CarlaEngineNative::_get_parameter_value,

  1534.     CarlaEngineNative::_get_parameter_text,

  1535.     CarlaEngineNative::_get_midi_program_count,

  1536.     CarlaEngineNative::_get_midi_program_info,

  1537.     CarlaEngineNative::_set_parameter_value,

  1538.     CarlaEngineNative::_set_midi_program,

  1539.     /* _set_custom_data        */ nullptr,

  1540.     CarlaEngineNative::_ui_show,

  1541.     CarlaEngineNative::_ui_idle,

  1542.     /* _ui_set_parameter_value */ nullptr,

  1543.     /* _ui_set_midi_program    */ nullptr,

  1544.     /* _ui_set_custom_data     */ nullptr,

  1545.     CarlaEngineNative::_activate,

  1546.     CarlaEngineNative::_deactivate,

  1547.     CarlaEngineNative::_process,

  1548.     CarlaEngineNative::_get_state,

  1549.     CarlaEngineNative::_set_state,

  1550.     CarlaEngineNative::_dispatcher

  1551. };

  1552. 

  1553. #if 0 //def HAVE_JUCE

  1554. static const NativePluginDescriptor carlaPatchbayDesc = {

  1555.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1556.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1557.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1558.     /* audioIns  */ 2,

  1559.     /* audioOuts */ 2,

  1560.     /* midiIns   */ 1,

  1561.     /* midiOuts  */ 1,

  1562.     /* paramIns  */ 0,

  1563.     /* paramOuts */ 0,

  1564.     /* name      */ "Carla-Patchbay",

  1565.     /* label     */ "carlapatchbay",

  1566.     /* maker     */ "falkTX",

  1567.     /* copyright */ "GNU GPL v2+",

  1568.     CarlaEngineNative::_instantiatePatchbay,

  1569.     CarlaEngineNative::_cleanup,

  1570.     CarlaEngineNative::_get_parameter_count,

  1571.     CarlaEngineNative::_get_parameter_info,

  1572.     CarlaEngineNative::_get_parameter_value,

  1573.     CarlaEngineNative::_get_parameter_text,

  1574.     CarlaEngineNative::_get_midi_program_count,

  1575.     CarlaEngineNative::_get_midi_program_info,

  1576.     CarlaEngineNative::_set_parameter_value,

  1577.     CarlaEngineNative::_set_midi_program,

  1578.     /* _set_custom_data        */ nullptr,

  1579.     CarlaEngineNative::_ui_show,

  1580.     CarlaEngineNative::_ui_idle,

  1581.     /* _ui_set_parameter_value */ nullptr,

  1582.     /* _ui_set_midi_program    */ nullptr,

  1583.     /* _ui_set_custom_data     */ nullptr,

  1584.     CarlaEngineNative::_activate,

  1585.     CarlaEngineNative::_deactivate,

  1586.     CarlaEngineNative::_process,

  1587.     CarlaEngineNative::_get_state,

  1588.     CarlaEngineNative::_set_state,

  1589.     CarlaEngineNative::_dispatcher

  1590. };

  1591. #endif

  1592. 

  1593. // -----------------------------------------------------------------------

  1594. 

  1595. CARLA_BACKEND_END_NAMESPACE

  1596. 

  1597. CARLA_EXPORT

  1598. void carla_register_native_plugin_carla();

  1599. 

  1600. void carla_register_native_plugin_carla()

  1601. {

  1602.     CARLA_BACKEND_USE_NAMESPACE;

  1603.     carla_register_native_plugin(&carlaRackDesc);

  1604. #if 0 //def HAVE_JUCE

  1605.     carla_register_native_plugin(&carlaPatchbayDesc);

  1606. #endif

  1607. }

  1608. 

  1609. // -----------------------------------------------------------------------

  1610. // Extra stuff for linking purposes

  1611. 

  1612. #ifdef CARLA_PLUGIN_EXPORT

  1613. 

  1614. CARLA_BACKEND_START_NAMESPACE

  1615. 

  1616. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1617. 

  1618. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1619. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1620. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

  1621. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1622. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1623. 

  1624. # ifdef HAVE_JUCE

  1625. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1626. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

  1627. const char*        CarlaEngine::getJuceApiName(const unsigned int) { return nullptr; }

  1628. const char* const* CarlaEngine::getJuceApiDeviceNames(const unsigned int) { return nullptr; }

  1629. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1630. # endif

  1631. 

  1632. CARLA_BACKEND_END_NAMESPACE

  1633. 

  1634. #ifdef WANT_DSSI

  1635. # include "CarlaDssiUtils.cpp"

  1636. #endif

  1637. 

  1638. #include "CarlaStateUtils.cpp"

  1639. 

  1640. #endif

  1641. 

  1642. // -----------------------------------------------------------------------