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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, "reset_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->resetParameters();

  476.         }

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

  478.         {

  479.             uint32_t pluginId;

  480. 

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

  482. 

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

  484.                 plugin->randomizeParameters();

  485.         }

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

  487.         {

  488.             uint32_t pluginId, channel, note, velocity;

  489. 

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

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

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

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

  494.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  495.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  496.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  497. 

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

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

  500.         }

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

  502.         {

  503.             uint32_t pluginId;

  504.             bool yesNo;

  505. 

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

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

  508. 

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

  510.                 plugin->showCustomUI(yesNo);

  511.         }

  512.         else

  513.         {

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

  515.             return false;

  516.         }

  517. 

  518.         if (! ok)

  519.         {

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

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

  522.         }

  523. 

  524.         return true;

  525.     }

  526. 

  527. private:

  528.     CarlaEngine* const fEngine;

  529. 

  530.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  531. };

  532. 

  533. // -----------------------------------------------------------------------

  534. 

  535. class CarlaEngineNative : public CarlaEngine

  536. {

  537. public:

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

  539.         : CarlaEngine(),

  540.           pHost(host),

  541.           fIsPatchbay(isPatchbay),

  542.           fIsActive(false),

  543.           fIsRunning(false),

  544.           fUiServer(this)

  545.     {

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

  547. 

  548.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  549. 

  550.         // set-up engine

  551.         if (fIsPatchbay)

  552.         {

  553.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  554.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  555.             pData->options.forceStereo         = false;

  556.             pData->options.preferPluginBridges = false;

  557.             pData->options.preferUiBridges     = false;

  558.             init("Carla-Patchbay");

  559.         }

  560.         else

  561.         {

  562.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  563.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  564.             pData->options.forceStereo         = true;

  565.             pData->options.preferPluginBridges = false;

  566.             pData->options.preferUiBridges     = false;

  567.             init("Carla-Rack");

  568.         }

  569. 

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

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

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

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

  574. 

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

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

  577. 

  578.         setCallback(_ui_server_callback, this);

  579.     }

  580. 

  581.     ~CarlaEngineNative() override

  582.     {

  583.         CARLA_SAFE_ASSERT(! fIsActive);

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

  585. 

  586.         pData->aboutToClose = true;

  587.         fIsRunning = false;

  588. 

  589.         removeAllPlugins();

  590.         runPendingRtEvents();

  591.         close();

  592. 

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

  594.     }

  595. 

  596. protected:

  597.     // -------------------------------------

  598.     // CarlaEngine virtual calls

  599. 

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

  601.     {

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

  603. 

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

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

  606. 

  607.         fIsRunning = true;

  608.         CarlaEngine::init(clientName);

  609.         return true;

  610.     }

  611. 

  612.     bool isRunning() const noexcept override

  613.     {

  614.         return fIsRunning;

  615.     }

  616. 

  617.     bool isOffline() const noexcept override

  618.     {

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

  620.     }

  621. 

  622.     EngineType getType() const noexcept override

  623.     {

  624.         return kEngineTypePlugin;

  625.     }

  626. 

  627.     const char* getCurrentDriverName() const noexcept override

  628.     {

  629.         return "Plugin";

  630.     }

  631. 

  632.     // -------------------------------------------------------------------

  633. 

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

  635.     {

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

  637.         {

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

  639.             return retName;

  640.         }

  641. 

  642.         return nullptr;

  643.     }

  644. 

  645.     // -------------------------------------------------------------------

  646. 

  647.     void bufferSizeChanged(const uint32_t newBufferSize)

  648.     {

  649.         pData->bufferSize = newBufferSize;

  650.         CarlaEngine::bufferSizeChanged(newBufferSize);

  651.     }

  652. 

  653.     void sampleRateChanged(const double newSampleRate)

  654.     {

  655.         pData->sampleRate = newSampleRate;

  656.         CarlaEngine::sampleRateChanged(newSampleRate);

  657.     }

  658. 

  659.     // -------------------------------------------------------------------

  660. 

  661.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  662.     {

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

  664. 

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

  666.         fUiServer.writeMsg(fTmpBuf);

  667. 

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

  669.         fUiServer.writeMsg(fTmpBuf);

  670. 

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

  672.         {

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

  674.             fUiServer.writeAndFixMsg(fTmpBuf);

  675.         }

  676.         else

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

  678. 

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

  680.         {

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

  682.             fUiServer.writeAndFixMsg(fTmpBuf);

  683.         }

  684.         else

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

  686. 

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

  688.         {

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

  690.             fUiServer.writeAndFixMsg(fTmpBuf);

  691.         }

  692.         else

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

  694. 

  695.         plugin->getRealName(fTmpBuf);

  696.         fUiServer.writeAndFixMsg(fTmpBuf);

  697. 

  698.         plugin->getLabel(fTmpBuf);

  699.         fUiServer.writeAndFixMsg(fTmpBuf);

  700. 

  701.         plugin->getMaker(fTmpBuf);

  702.         fUiServer.writeAndFixMsg(fTmpBuf);

  703. 

  704.         plugin->getCopyright(fTmpBuf);

  705.         fUiServer.writeAndFixMsg(fTmpBuf);

  706. 

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

  708.         fUiServer.writeMsg(fTmpBuf);

  709. 

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

  711.         fUiServer.writeMsg(fTmpBuf);

  712.     }

  713. 

  714.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  715.     {

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

  717. 

  718.         uint32_t ins, outs, count;

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

  720.         count = plugin->getParameterCount();

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

  722.         fUiServer.writeMsg(fTmpBuf);

  723. 

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

  725.         {

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

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

  728. 

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

  730.             fUiServer.writeMsg(fTmpBuf);

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

  732.             fUiServer.writeMsg(fTmpBuf);

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

  734.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  736.             fUiServer.writeAndFixMsg(fTmpBuf);

  737. 

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

  739.             fUiServer.writeMsg(fTmpBuf);

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

  741.             fUiServer.writeMsg(fTmpBuf);

  742. 

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

  744.             fUiServer.writeMsg(fTmpBuf);

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

  746.             fUiServer.writeMsg(fTmpBuf);

  747.         }

  748.     }

  749. 

  750.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  751.     {

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

  753. 

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

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

  756.         fUiServer.writeMsg(fTmpBuf);

  757. 

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

  759.         {

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

  761.             fUiServer.writeMsg(fTmpBuf);

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

  763.             fUiServer.writeAndFixMsg(fTmpBuf);

  764.         }

  765. 

  766.         count = plugin->getMidiProgramCount();

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

  768.         fUiServer.writeMsg(fTmpBuf);

  769. 

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

  771.         {

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

  773.             fUiServer.writeMsg(fTmpBuf);

  774. 

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

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

  777.             fUiServer.writeMsg(fTmpBuf);

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

  779.             fUiServer.writeAndFixMsg(fTmpBuf);

  780.         }

  781.     }

  782. 

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

  784.     {

  785.         if (! fIsRunning)

  786.             return;

  787.         if (! fUiServer.isOk())

  788.             return;

  789. 

  790.         CarlaPlugin* plugin;

  791. 

  792.         switch (action)

  793.         {

  794.         case ENGINE_CALLBACK_RELOAD_INFO:

  795.             plugin = getPlugin(pluginId);

  796. 

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

  798.             {

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

  800.                 uiServerSendPluginInfo(plugin);

  801.             }

  802.             break;

  803. 

  804.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  805.             plugin = getPlugin(pluginId);

  806. 

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

  808.             {

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

  810.                 uiServerSendPluginParameters(plugin);

  811.             }

  812.             break;

  813. 

  814.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  815.             plugin = getPlugin(pluginId);

  816. 

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

  818.             {

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

  820.                 uiServerSendPluginPrograms(plugin);

  821.             }

  822.             break;

  823. 

  824.         case ENGINE_CALLBACK_RELOAD_ALL:

  825.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  826.             plugin = getPlugin(pluginId);

  827. 

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

  829.             {

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

  831.                 uiServerSendPluginInfo(plugin);

  832.                 uiServerSendPluginParameters(plugin);

  833.                 uiServerSendPluginPrograms(plugin);

  834.             }

  835.             break;

  836. 

  837.         default:

  838.             break;

  839.         }

  840. 

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

  842.         fUiServer.writeMsg(fTmpBuf);

  843. 

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

  845.         fUiServer.writeMsg(fTmpBuf);

  846. 

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

  848.         fUiServer.writeMsg(fTmpBuf);

  849. 

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

  851.         fUiServer.writeMsg(fTmpBuf);

  852. 

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

  854.         fUiServer.writeMsg(fTmpBuf);

  855. 

  856.         fUiServer.writeAndFixMsg(valueStr);

  857.     }

  858. 

  859.     // -------------------------------------------------------------------

  860.     // Plugin parameter calls

  861. 

  862.     uint32_t getParameterCount() const

  863.     {

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

  865.             return plugin->getParameterCount();

  866. 

  867.         return 0;

  868.     }

  869. 

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

  871.     {

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

  873.         {

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

  875.             {

  876.                 static NativeParameter param;

  877.                 static char strBufName[STR_MAX+1];

  878.                 static char strBufUnit[STR_MAX+1];

  879. 

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

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

  882. 

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

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

  885. 

  886.                 unsigned int hints = 0x0;

  887. 

  888.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  889.                     hints |= ::PARAMETER_IS_BOOLEAN;

  890.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  891.                     hints |= ::PARAMETER_IS_INTEGER;

  892.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  893.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  894.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  895.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  896.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  897.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  898.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  899.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  900.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  901.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  902. 

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

  904.                 {

  905.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  906.                         hints |= ::PARAMETER_IS_ENABLED;

  907.                     if (paramData.type == PARAMETER_OUTPUT)

  908.                         hints |= ::PARAMETER_IS_OUTPUT;

  909.                 }

  910. 

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

  912.                 param.name  = strBufName;

  913.                 param.unit  = strBufUnit;

  914.                 param.ranges.def = paramRanges.def;

  915.                 param.ranges.min = paramRanges.min;

  916.                 param.ranges.max = paramRanges.max;

  917.                 param.ranges.step = paramRanges.step;

  918.                 param.ranges.stepSmall = paramRanges.stepSmall;

  919.                 param.ranges.stepLarge = paramRanges.stepLarge;

  920.                 param.scalePointCount = 0; // TODO

  921.                 param.scalePoints = nullptr;

  922. 

  923.                 return &param;

  924.             }

  925.         }

  926. 

  927.         return nullptr;

  928.     }

  929. 

  930.     float getParameterValue(const uint32_t index) const

  931.     {

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

  933.         {

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

  935.                 return plugin->getParameterValue(index);

  936.         }

  937. 

  938.         return 0.0f;

  939.     }

  940. 

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

  942.     {

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

  944.         {

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

  946.             {

  947.                 static char strBuf[STR_MAX+1];

  948.                 carla_zeroChar(strBuf, STR_MAX+1);

  949. 

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

  951. 

  952.                 return strBuf;

  953.             }

  954.         }

  955. 

  956.         return nullptr;

  957.     }

  958. 

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

  960.     // Plugin midi-program calls

  961. 

  962.     uint32_t getMidiProgramCount() const

  963.     {

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

  965.             return plugin->getMidiProgramCount();

  966. 

  967.         return 0;

  968.     }

  969. 

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

  971.     {

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

  973.         {

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

  975.             {

  976.                 static NativeMidiProgram midiProg;

  977. 

  978.                 {

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

  980. 

  981.                     midiProg.bank    = midiProgData.bank;

  982.                     midiProg.program = midiProgData.program;

  983.                     midiProg.name    = midiProgData.name;

  984.                 }

  985. 

  986.                 return &midiProg;

  987.             }

  988.         }

  989. 

  990.         return nullptr;

  991.     }

  992. 

  993.     // -------------------------------------------------------------------

  994.     // Plugin state calls

  995. 

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

  997.     {

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

  999.         {

  1000.             if (index < plugin->getParameterCount())

  1001.                 plugin->setParameterValue(index, value, false, false, false);

  1002.         }

  1003.     }

  1004. 

  1005.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1006.     {

  1007.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1008.             plugin->setMidiProgramById(bank, program, false, false, false);

  1009.     }

  1010. 

  1011.     // -------------------------------------------------------------------

  1012.     // Plugin process calls

  1013. 

  1014.     void activate()

  1015.     {

  1016. #if 0

  1017.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1018.         {

  1019.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1020. 

  1021.             if (plugin == nullptr || ! plugin->isEnabled())

  1022.                 continue;

  1023. 

  1024.             plugin->setActive(true, true, false);

  1025.         }

  1026. #endif

  1027.         fIsActive = true;

  1028.     }

  1029. 

  1030.     void deactivate()

  1031.     {

  1032.         fIsActive = false;

  1033. #if 0

  1034.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1035.         {

  1036.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1037. 

  1038.             if (plugin == nullptr || ! plugin->isEnabled())

  1039.                 continue;

  1040. 

  1041.             plugin->setActive(false, true, false);

  1042.         }

  1043. #endif

  1044. 

  1045.         // just in case

  1046.         runPendingRtEvents();

  1047.     }

  1048. 

  1049.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1050.     {

  1051.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1052.         {

  1053.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1054.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1055. 

  1056.             return runPendingRtEvents();;

  1057.         }

  1058. 

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

  1060.         // Time Info

  1061. 

  1062.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1063. 

  1064.         pData->timeInfo.playing = timeInfo->playing;

  1065.         pData->timeInfo.frame   = timeInfo->frame;

  1066.         pData->timeInfo.usecs   = timeInfo->usecs;

  1067.         pData->timeInfo.valid   = 0x0;

  1068. 

  1069.         if (timeInfo->bbt.valid)

  1070.         {

  1071.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1072. 

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

  1074.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1075.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1076.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1077. 

  1078.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1079.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1080. 

  1081.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1082.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1083.         }

  1084. 

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

  1086.         // initialize events

  1087. 

  1088.         carla_zeroStruct<EngineEvent>(pData->events.in,  kMaxEngineEventInternalCount);

  1089.         carla_zeroStruct<EngineEvent>(pData->events.out, kMaxEngineEventInternalCount);

  1090. 

  1091.         // ---------------------------------------------------------------

  1092.         // events input (before processing)

  1093. 

  1094.         {

  1095.             uint32_t engineEventIndex = 0;

  1096. 

  1097.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1098.             {

  1099.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1100.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1101. 

  1102.                 engineEvent.time = midiEvent.time;

  1103.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1104. 

  1105.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1106.                     break;

  1107.             }

  1108.         }

  1109. 

  1110.         if (fIsPatchbay)

  1111.         {

  1112.             // -----------------------------------------------------------

  1113.             // create audio buffers

  1114. 

  1115.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1116.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1117.             //uint32_t bufCount[2] = { 2, 2 };

  1118. 

  1119.             // -----------------------------------------------------------

  1120.             // process

  1121. 

  1122.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1123.         }

  1124.         else

  1125.         {

  1126.             // -----------------------------------------------------------

  1127.             // create audio buffers

  1128. 

  1129.             const float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1130.                   float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1131. 

  1132.             // -----------------------------------------------------------

  1133.             // process

  1134. 

  1135.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1136.         }

  1137. 

  1138.         // ---------------------------------------------------------------

  1139.         // events output (after processing)

  1140. 

  1141.         carla_zeroStruct<EngineEvent>(pData->events.in, kMaxEngineEventInternalCount);

  1142. 

  1143.         {

  1144.             NativeMidiEvent midiEvent;

  1145. 

  1146.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1147.             {

  1148.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1149. 

  1150.                 if (engineEvent.type == kEngineEventTypeNull)

  1151.                     break;

  1152. 

  1153.                 midiEvent.time = engineEvent.time;

  1154. 

  1155.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1156.                 {

  1157.                     midiEvent.port = 0;

  1158.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1159.                 }

  1160.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1161.                 {

  1162.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1163.                         continue;

  1164. 

  1165.                     midiEvent.port = engineEvent.midi.port;

  1166.                     midiEvent.size = engineEvent.midi.size;

  1167. 

  1168.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1169. 

  1170.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1171.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1172.                 }

  1173.                 else

  1174.                 {

  1175.                     carla_stderr("Unknown event type...");

  1176.                     continue;

  1177.                 }

  1178. 

  1179.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1180.             }

  1181.         }

  1182. 

  1183.         runPendingRtEvents();

  1184.     }

  1185. 

  1186.     // -------------------------------------------------------------------

  1187.     // Plugin UI calls

  1188. 

  1189.     void uiShow(const bool show)

  1190.     {

  1191.         if (show)

  1192.         {

  1193.             if (fUiServer.isOk())

  1194.                 return;

  1195. 

  1196.             CarlaString path(pHost->resourceDir);

  1197.             path += "/carla-plugin";

  1198. 

  1199.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1200. 

  1201.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1202.             fUiServer.start();

  1203. 

  1204.             for (uint i=0; i < pData->curPluginCount; ++i)

  1205.             {

  1206.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1207. 

  1208.                 if (plugin != nullptr && plugin->isEnabled())

  1209.                 {

  1210.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1211.                 }

  1212.             }

  1213.         }

  1214.         else

  1215.         {

  1216.             fUiServer.stop();

  1217.         }

  1218.     }

  1219. 

  1220.     void uiIdle()

  1221.     {

  1222.         CarlaEngine::idle();

  1223.         fUiServer.idle();

  1224. 

  1225.         if (! fUiServer.isOk())

  1226.             return;

  1227. 

  1228.         for (uint i=0; i < pData->curPluginCount; ++i)

  1229.         {

  1230.             const EnginePluginData& plugData(pData->plugins[i]);

  1231.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1232. 

  1233.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1234.             fUiServer.writeMsg(fTmpBuf);

  1235. 

  1236.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1237.             fUiServer.writeMsg(fTmpBuf);

  1238. 

  1239.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1240.             {

  1241.                 if (plugin->isParameterOutput(j))

  1242.                     continue;

  1243. 

  1244.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1245.                 fUiServer.writeMsg(fTmpBuf);

  1246.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1247.                 fUiServer.writeMsg(fTmpBuf);

  1248.             }

  1249.         }

  1250. 

  1251.         switch (fUiServer.getAndResetUiState())

  1252.         {

  1253.         case CarlaExternalUI::UiNone:

  1254.         case CarlaExternalUI::UiShow:

  1255.             break;

  1256.         case CarlaExternalUI::UiCrashed:

  1257.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1258.             break;

  1259.         case CarlaExternalUI::UiHide:

  1260.             pHost->ui_closed(pHost->handle);

  1261.             fUiServer.stop();

  1262.             break;

  1263.         }

  1264.     }

  1265. 

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

  1267.     // Plugin state calls

  1268. 

  1269.     char* getState() const

  1270.     {

  1271.         QString string;

  1272.         QTextStream out(&string);

  1273.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1274.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1275.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1276. 

  1277.         bool firstPlugin = true;

  1278.         char strBuf[STR_MAX+1];

  1279. 

  1280.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1281.         {

  1282.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1283. 

  1284.             if (plugin != nullptr && plugin->isEnabled())

  1285.             {

  1286.                 if (! firstPlugin)

  1287.                     out << "\n";

  1288. 

  1289.                 strBuf[0] = '\0';

  1290. 

  1291.                 plugin->getRealName(strBuf);

  1292. 

  1293.                 //if (strBuf[0] != '\0')

  1294.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1295. 

  1296.                 QString content;

  1297.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1298. 

  1299.                 out << " <Plugin>\n";

  1300.                 out << content;

  1301.                 out << " </Plugin>\n";

  1302. 

  1303.                 firstPlugin = false;

  1304.             }

  1305.         }

  1306. 

  1307.         out << "</CARLA-PROJECT>\n";

  1308. 

  1309.         return strdup(string.toUtf8().constData());

  1310.     }

  1311. 

  1312.     void setState(const char* const data)

  1313.     {

  1314.         QDomDocument xml;

  1315.         xml.setContent(QString(data));

  1316. 

  1317.         QDomNode xmlNode(xml.documentElement());

  1318. 

  1319.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1320.         {

  1321.             carla_stderr2("Not a valid Carla project");

  1322.             return;

  1323.         }

  1324. 

  1325.         //bool pluginsAdded = false;

  1326. 

  1327.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1328.         {

  1329.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1330.             {

  1331.                 SaveState saveState;

  1332.                 fillSaveStateFromXmlNode(saveState, node);

  1333. 

  1334.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr);

  1335. 

  1336.                 const void* extraStuff = nullptr;

  1337. 

  1338.                 // check if using GIG, SF2 or SFZ 16outs

  1339.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1340. 

  1341.                 const PluginType ptype(getPluginTypeFromString(saveState.type));

  1342. 

  1343.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1344.                 {

  1345.                     if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)

  1346.                         extraStuff = "true";

  1347.                 }

  1348. 

  1349.                 // TODO - proper find&load plugins

  1350. 

  1351.                 if (addPlugin(ptype, saveState.binary, saveState.name, saveState.label, saveState.uniqueId, extraStuff))

  1352.                 {

  1353.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1354.                         plugin->loadSaveState(saveState);

  1355.                 }

  1356. 

  1357.                 //pluginsAdded = true;

  1358.             }

  1359.         }

  1360. 

  1361.         //if (pluginsAdded)

  1362.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1363.     }

  1364. 

  1365.     // -------------------------------------------------------------------

  1366. 

  1367. public:

  1368.     #define handlePtr ((CarlaEngineNative*)handle)

  1369. 

  1370.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1371.     {

  1372.         return new CarlaEngineNative(host, false);

  1373.     }

  1374. 

  1375. #ifdef HAVE_JUCE

  1376.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1377.     {

  1378.         return new CarlaEngineNative(host, true);

  1379.     }

  1380. #endif

  1381. 

  1382.     static void _cleanup(NativePluginHandle handle)

  1383.     {

  1384.         delete handlePtr;

  1385.     }

  1386. 

  1387.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1388.     {

  1389.         return handlePtr->getParameterCount();

  1390.     }

  1391. 

  1392.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1393.     {

  1394.         return handlePtr->getParameterInfo(index);

  1395.     }

  1396. 

  1397.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1398.     {

  1399.         return handlePtr->getParameterValue(index);

  1400.     }

  1401. 

  1402.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index /*, float value*/)

  1403.     {

  1404.         return handlePtr->getParameterText(index /*, value*/);

  1405.     }

  1406. 

  1407.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1408.     {

  1409.         return handlePtr->getMidiProgramCount();

  1410.     }

  1411. 

  1412.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1413.     {

  1414.         return handlePtr->getMidiProgramInfo(index);

  1415.     }

  1416. 

  1417.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1418.     {

  1419.         handlePtr->setParameterValue(index, value);

  1420.     }

  1421. 

  1422.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1423.     {

  1424.         handlePtr->setMidiProgram(channel, bank, program);

  1425.     }

  1426. 

  1427.     static void _ui_show(NativePluginHandle handle, bool show)

  1428.     {

  1429.         handlePtr->uiShow(show);

  1430.     }

  1431. 

  1432.     static void _ui_idle(NativePluginHandle handle)

  1433.     {

  1434.         handlePtr->uiIdle();

  1435.     }

  1436. 

  1437.     static void _activate(NativePluginHandle handle)

  1438.     {

  1439.         handlePtr->activate();

  1440.     }

  1441. 

  1442.     static void _deactivate(NativePluginHandle handle)

  1443.     {

  1444.         handlePtr->deactivate();

  1445.     }

  1446. 

  1447.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1448.     {

  1449.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1450.     }

  1451. 

  1452.     static char* _get_state(NativePluginHandle handle)

  1453.     {

  1454.         return handlePtr->getState();

  1455.     }

  1456. 

  1457.     static void _set_state(NativePluginHandle handle, const char* data)

  1458.     {

  1459.         handlePtr->setState(data);

  1460.     }

  1461. 

  1462.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1463.     {

  1464.         switch(opcode)

  1465.         {

  1466.         case PLUGIN_OPCODE_NULL:

  1467.             return 0;

  1468.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1469.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1470.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1471.             return 0;

  1472.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1473.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1474.             return 0;

  1475.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1476.             handlePtr->offlineModeChanged(value != 0);

  1477.             return 0;

  1478.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1479.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1480.             return 0;

  1481.         }

  1482. 

  1483.         return 0;

  1484. 

  1485.         // unused

  1486.         (void)index;

  1487.         (void)ptr;

  1488.     }

  1489. 

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

  1491. 

  1492.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1493.     {

  1494.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1495.     }

  1496. 

  1497.     // -------------------------------------------------------------------

  1498. 

  1499.     #undef handlePtr

  1500. 

  1501. private:

  1502.     const NativeHostDescriptor* const pHost;

  1503. 

  1504.     const bool fIsPatchbay; // rack if false

  1505.     bool fIsActive, fIsRunning;

  1506.     CarlaEngineNativeUI fUiServer;

  1507. 

  1508.     char fTmpBuf[STR_MAX+1];

  1509. 

  1510.     CarlaPlugin* _getFirstPlugin() const noexcept

  1511.     {

  1512.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1513.             return nullptr;

  1514. 

  1515.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1516. 

  1517.         if (plugin == nullptr || ! plugin->isEnabled())

  1518.             return nullptr;

  1519. 

  1520.         return pData->plugins[0].plugin;

  1521.     }

  1522. 

  1523.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1524. };

  1525. 

  1526. // -----------------------------------------------------------------------

  1527. 

  1528. static const NativePluginDescriptor carlaRackDesc = {

  1529.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1530.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1531.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1532.     /* audioIns  */ 2,

  1533.     /* audioOuts */ 2,

  1534.     /* midiIns   */ 1,

  1535.     /* midiOuts  */ 1,

  1536.     /* paramIns  */ 0,

  1537.     /* paramOuts */ 0,

  1538.     /* name      */ "Carla-Rack",

  1539.     /* label     */ "carlarack",

  1540.     /* maker     */ "falkTX",

  1541.     /* copyright */ "GNU GPL v2+",

  1542.     CarlaEngineNative::_instantiateRack,

  1543.     CarlaEngineNative::_cleanup,

  1544.     CarlaEngineNative::_get_parameter_count,

  1545.     CarlaEngineNative::_get_parameter_info,

  1546.     CarlaEngineNative::_get_parameter_value,

  1547.     CarlaEngineNative::_get_parameter_text,

  1548.     CarlaEngineNative::_get_midi_program_count,

  1549.     CarlaEngineNative::_get_midi_program_info,

  1550.     CarlaEngineNative::_set_parameter_value,

  1551.     CarlaEngineNative::_set_midi_program,

  1552.     /* _set_custom_data        */ nullptr,

  1553.     CarlaEngineNative::_ui_show,

  1554.     CarlaEngineNative::_ui_idle,

  1555.     /* _ui_set_parameter_value */ nullptr,

  1556.     /* _ui_set_midi_program    */ nullptr,

  1557.     /* _ui_set_custom_data     */ nullptr,

  1558.     CarlaEngineNative::_activate,

  1559.     CarlaEngineNative::_deactivate,

  1560.     CarlaEngineNative::_process,

  1561.     CarlaEngineNative::_get_state,

  1562.     CarlaEngineNative::_set_state,

  1563.     CarlaEngineNative::_dispatcher

  1564. };

  1565. 

  1566. #if 0 //def HAVE_JUCE

  1567. static const NativePluginDescriptor carlaPatchbayDesc = {

  1568.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1569.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1570.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1571.     /* audioIns  */ 2,

  1572.     /* audioOuts */ 2,

  1573.     /* midiIns   */ 1,

  1574.     /* midiOuts  */ 1,

  1575.     /* paramIns  */ 0,

  1576.     /* paramOuts */ 0,

  1577.     /* name      */ "Carla-Patchbay",

  1578.     /* label     */ "carlapatchbay",

  1579.     /* maker     */ "falkTX",

  1580.     /* copyright */ "GNU GPL v2+",

  1581.     CarlaEngineNative::_instantiatePatchbay,

  1582.     CarlaEngineNative::_cleanup,

  1583.     CarlaEngineNative::_get_parameter_count,

  1584.     CarlaEngineNative::_get_parameter_info,

  1585.     CarlaEngineNative::_get_parameter_value,

  1586.     CarlaEngineNative::_get_parameter_text,

  1587.     CarlaEngineNative::_get_midi_program_count,

  1588.     CarlaEngineNative::_get_midi_program_info,

  1589.     CarlaEngineNative::_set_parameter_value,

  1590.     CarlaEngineNative::_set_midi_program,

  1591.     /* _set_custom_data        */ nullptr,

  1592.     CarlaEngineNative::_ui_show,

  1593.     CarlaEngineNative::_ui_idle,

  1594.     /* _ui_set_parameter_value */ nullptr,

  1595.     /* _ui_set_midi_program    */ nullptr,

  1596.     /* _ui_set_custom_data     */ nullptr,

  1597.     CarlaEngineNative::_activate,

  1598.     CarlaEngineNative::_deactivate,

  1599.     CarlaEngineNative::_process,

  1600.     CarlaEngineNative::_get_state,

  1601.     CarlaEngineNative::_set_state,

  1602.     CarlaEngineNative::_dispatcher

  1603. };

  1604. #endif

  1605. 

  1606. // -----------------------------------------------------------------------

  1607. 

  1608. CARLA_BACKEND_END_NAMESPACE

  1609. 

  1610. CARLA_EXPORT

  1611. void carla_register_native_plugin_carla();

  1612. 

  1613. void carla_register_native_plugin_carla()

  1614. {

  1615.     CARLA_BACKEND_USE_NAMESPACE;

  1616.     carla_register_native_plugin(&carlaRackDesc);

  1617. #if 0 //def HAVE_JUCE

  1618.     carla_register_native_plugin(&carlaPatchbayDesc);

  1619. #endif

  1620. }

  1621. 

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

  1623. // Extra stuff for linking purposes

  1624. 

  1625. #ifdef CARLA_PLUGIN_EXPORT

  1626. 

  1627. CARLA_BACKEND_START_NAMESPACE

  1628. 

  1629. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1630. 

  1631. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1632. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1633. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

  1634. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1635. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1636. 

  1637. # ifdef HAVE_JUCE

  1638. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1639. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

  1640. const char*        CarlaEngine::getJuceApiName(const unsigned int) { return nullptr; }

  1641. const char* const* CarlaEngine::getJuceApiDeviceNames(const unsigned int) { return nullptr; }

  1642. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1643. # endif

  1644. 

  1645. CARLA_BACKEND_END_NAMESPACE

  1646. 

  1647. #ifdef WANT_DSSI

  1648. # include "CarlaDssiUtils.cpp"

  1649. #endif

  1650. 

  1651. #include "CarlaStateUtils.cpp"

  1652. 

  1653. #endif

  1654. 

  1655. // -----------------------------------------------------------------------