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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, "send_midi_note") == 0)

  469.         {

  470.             uint32_t pluginId, channel, note, velocity;

  471. 

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

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

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

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

  476.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  477.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  478.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  479. 

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

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

  482.         }

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

  484.         {

  485.             uint32_t pluginId;

  486.             bool yesNo;

  487. 

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

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

  490. 

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

  492.                 plugin->showCustomUI(yesNo);

  493.         }

  494.         else

  495.         {

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

  497.             return false;

  498.         }

  499. 

  500.         if (! ok)

  501.         {

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

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

  504.         }

  505. 

  506.         return true;

  507.     }

  508. 

  509. private:

  510.     CarlaEngine* const fEngine;

  511. 

  512.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  513. };

  514. 

  515. // -----------------------------------------------------------------------

  516. 

  517. class CarlaEngineNative : public CarlaEngine

  518. {

  519. public:

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

  521.         : CarlaEngine(),

  522.           pHost(host),

  523.           fIsPatchbay(isPatchbay),

  524.           fIsActive(false),

  525.           fIsRunning(false),

  526.           fUiServer(this)

  527.     {

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

  529. 

  530.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  531. 

  532.         // set-up engine

  533.         if (fIsPatchbay)

  534.         {

  535.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  536.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  537.             pData->options.forceStereo         = false;

  538.             pData->options.preferPluginBridges = false;

  539.             pData->options.preferUiBridges     = false;

  540.             init("Carla-Patchbay");

  541.         }

  542.         else

  543.         {

  544.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  545.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  546.             pData->options.forceStereo         = true;

  547.             pData->options.preferPluginBridges = false;

  548.             pData->options.preferUiBridges     = false;

  549.             init("Carla-Rack");

  550.         }

  551. 

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

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

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

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

  556. 

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

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

  559. 

  560.         setCallback(_ui_server_callback, this);

  561.     }

  562. 

  563.     ~CarlaEngineNative() override

  564.     {

  565.         CARLA_SAFE_ASSERT(! fIsActive);

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

  567. 

  568.         pData->aboutToClose = true;

  569.         fIsRunning = false;

  570. 

  571.         removeAllPlugins();

  572.         runPendingRtEvents();

  573.         close();

  574. 

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

  576.     }

  577. 

  578. protected:

  579.     // -------------------------------------

  580.     // CarlaEngine virtual calls

  581. 

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

  583.     {

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

  585. 

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

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

  588. 

  589.         fIsRunning = true;

  590.         CarlaEngine::init(clientName);

  591.         return true;

  592.     }

  593. 

  594.     bool isRunning() const noexcept override

  595.     {

  596.         return fIsRunning;

  597.     }

  598. 

  599.     bool isOffline() const noexcept override

  600.     {

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

  602.     }

  603. 

  604.     EngineType getType() const noexcept override

  605.     {

  606.         return kEngineTypePlugin;

  607.     }

  608. 

  609.     const char* getCurrentDriverName() const noexcept override

  610.     {

  611.         return "Plugin";

  612.     }

  613. 

  614.     // -------------------------------------------------------------------

  615. 

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

  617.     {

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

  619.         {

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

  621.             return retName;

  622.         }

  623. 

  624.         return nullptr;

  625.     }

  626. 

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

  628. 

  629.     void bufferSizeChanged(const uint32_t newBufferSize)

  630.     {

  631.         pData->bufferSize = newBufferSize;

  632.         CarlaEngine::bufferSizeChanged(newBufferSize);

  633.     }

  634. 

  635.     void sampleRateChanged(const double newSampleRate)

  636.     {

  637.         pData->sampleRate = newSampleRate;

  638.         CarlaEngine::sampleRateChanged(newSampleRate);

  639.     }

  640. 

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

  642. 

  643.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  644.     {

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

  646. 

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

  648.         fUiServer.writeMsg(fTmpBuf);

  649. 

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

  651.         fUiServer.writeMsg(fTmpBuf);

  652. 

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

  654.         {

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

  656.             fUiServer.writeAndFixMsg(fTmpBuf);

  657.         }

  658.         else

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

  660. 

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

  662.         {

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

  664.             fUiServer.writeAndFixMsg(fTmpBuf);

  665.         }

  666.         else

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

  668. 

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

  670.         {

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

  672.             fUiServer.writeAndFixMsg(fTmpBuf);

  673.         }

  674.         else

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

  676. 

  677.         plugin->getRealName(fTmpBuf);

  678.         fUiServer.writeAndFixMsg(fTmpBuf);

  679. 

  680.         plugin->getLabel(fTmpBuf);

  681.         fUiServer.writeAndFixMsg(fTmpBuf);

  682. 

  683.         plugin->getMaker(fTmpBuf);

  684.         fUiServer.writeAndFixMsg(fTmpBuf);

  685. 

  686.         plugin->getCopyright(fTmpBuf);

  687.         fUiServer.writeAndFixMsg(fTmpBuf);

  688. 

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

  690.         fUiServer.writeMsg(fTmpBuf);

  691. 

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

  693.         fUiServer.writeMsg(fTmpBuf);

  694.     }

  695. 

  696.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  697.     {

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

  699. 

  700.         uint32_t ins, outs, count;

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

  702.         count = plugin->getParameterCount();

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

  704.         fUiServer.writeMsg(fTmpBuf);

  705. 

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

  707.         {

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

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

  710. 

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

  712.             fUiServer.writeMsg(fTmpBuf);

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

  714.             fUiServer.writeMsg(fTmpBuf);

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

  716.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  718.             fUiServer.writeAndFixMsg(fTmpBuf);

  719. 

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

  721.             fUiServer.writeMsg(fTmpBuf);

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

  723.             fUiServer.writeMsg(fTmpBuf);

  724. 

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

  726.             fUiServer.writeMsg(fTmpBuf);

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

  728.             fUiServer.writeMsg(fTmpBuf);

  729.         }

  730.     }

  731. 

  732.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  733.     {

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

  735. 

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

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

  738.         fUiServer.writeMsg(fTmpBuf);

  739. 

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

  741.         {

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

  743.             fUiServer.writeMsg(fTmpBuf);

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

  745.             fUiServer.writeAndFixMsg(fTmpBuf);

  746.         }

  747. 

  748.         count = plugin->getMidiProgramCount();

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

  750.         fUiServer.writeMsg(fTmpBuf);

  751. 

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

  753.         {

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

  755.             fUiServer.writeMsg(fTmpBuf);

  756. 

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

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

  759.             fUiServer.writeMsg(fTmpBuf);

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

  761.             fUiServer.writeAndFixMsg(fTmpBuf);

  762.         }

  763.     }

  764. 

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

  766.     {

  767.         if (! fIsRunning)

  768.             return;

  769.         if (! fUiServer.isOk())

  770.             return;

  771. 

  772.         CarlaPlugin* plugin;

  773. 

  774.         switch (action)

  775.         {

  776.         case ENGINE_CALLBACK_RELOAD_INFO:

  777.             plugin = getPlugin(pluginId);

  778. 

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

  780.             {

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

  782.                 uiServerSendPluginInfo(plugin);

  783.             }

  784.             break;

  785. 

  786.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  787.             plugin = getPlugin(pluginId);

  788. 

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

  790.             {

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

  792.                 uiServerSendPluginParameters(plugin);

  793.             }

  794.             break;

  795. 

  796.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  797.             plugin = getPlugin(pluginId);

  798. 

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

  800.             {

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

  802.                 uiServerSendPluginPrograms(plugin);

  803.             }

  804.             break;

  805. 

  806.         case ENGINE_CALLBACK_RELOAD_ALL:

  807.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  808.             plugin = getPlugin(pluginId);

  809. 

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

  811.             {

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

  813.                 uiServerSendPluginInfo(plugin);

  814.                 uiServerSendPluginParameters(plugin);

  815.                 uiServerSendPluginPrograms(plugin);

  816.             }

  817.             break;

  818. 

  819.         default:

  820.             break;

  821.         }

  822. 

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

  824.         fUiServer.writeMsg(fTmpBuf);

  825. 

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

  827.         fUiServer.writeMsg(fTmpBuf);

  828. 

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

  830.         fUiServer.writeMsg(fTmpBuf);

  831. 

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

  833.         fUiServer.writeMsg(fTmpBuf);

  834. 

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

  836.         fUiServer.writeMsg(fTmpBuf);

  837. 

  838.         fUiServer.writeAndFixMsg(valueStr);

  839.     }

  840. 

  841.     // -------------------------------------------------------------------

  842.     // Plugin parameter calls

  843. 

  844.     uint32_t getParameterCount() const

  845.     {

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

  847.             return plugin->getParameterCount();

  848. 

  849.         return 0;

  850.     }

  851. 

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

  853.     {

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

  855.         {

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

  857.             {

  858.                 static NativeParameter param;

  859.                 static char strBufName[STR_MAX+1];

  860.                 static char strBufUnit[STR_MAX+1];

  861. 

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

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

  864. 

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

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

  867. 

  868.                 unsigned int hints = 0x0;

  869. 

  870.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  871.                     hints |= ::PARAMETER_IS_BOOLEAN;

  872.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  873.                     hints |= ::PARAMETER_IS_INTEGER;

  874.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  875.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  876.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  877.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  878.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  879.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  880.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  881.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  882.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  883.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  884. 

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

  886.                 {

  887.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  888.                         hints |= ::PARAMETER_IS_ENABLED;

  889.                     if (paramData.type == PARAMETER_OUTPUT)

  890.                         hints |= ::PARAMETER_IS_OUTPUT;

  891.                 }

  892. 

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

  894.                 param.name  = strBufName;

  895.                 param.unit  = strBufUnit;

  896.                 param.ranges.def = paramRanges.def;

  897.                 param.ranges.min = paramRanges.min;

  898.                 param.ranges.max = paramRanges.max;

  899.                 param.ranges.step = paramRanges.step;

  900.                 param.ranges.stepSmall = paramRanges.stepSmall;

  901.                 param.ranges.stepLarge = paramRanges.stepLarge;

  902.                 param.scalePointCount = 0; // TODO

  903.                 param.scalePoints = nullptr;

  904. 

  905.                 return &param;

  906.             }

  907.         }

  908. 

  909.         return nullptr;

  910.     }

  911. 

  912.     float getParameterValue(const uint32_t index) const

  913.     {

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

  915.         {

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

  917.                 return plugin->getParameterValue(index);

  918.         }

  919. 

  920.         return 0.0f;

  921.     }

  922. 

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

  924.     {

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

  926.         {

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

  928.             {

  929.                 static char strBuf[STR_MAX+1];

  930.                 carla_zeroChar(strBuf, STR_MAX+1);

  931. 

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

  933. 

  934.                 return strBuf;

  935.             }

  936.         }

  937. 

  938.         return nullptr;

  939.     }

  940. 

  941.     // -------------------------------------------------------------------

  942.     // Plugin midi-program calls

  943. 

  944.     uint32_t getMidiProgramCount() const

  945.     {

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

  947.             return plugin->getMidiProgramCount();

  948. 

  949.         return 0;

  950.     }

  951. 

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

  953.     {

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

  955.         {

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

  957.             {

  958.                 static NativeMidiProgram midiProg;

  959. 

  960.                 {

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

  962. 

  963.                     midiProg.bank    = midiProgData.bank;

  964.                     midiProg.program = midiProgData.program;

  965.                     midiProg.name    = midiProgData.name;

  966.                 }

  967. 

  968.                 return &midiProg;

  969.             }

  970.         }

  971. 

  972.         return nullptr;

  973.     }

  974. 

  975.     // -------------------------------------------------------------------

  976.     // Plugin state calls

  977. 

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

  979.     {

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

  981.         {

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

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

  984.         }

  985.     }

  986. 

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

  988.     {

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

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

  991.     }

  992. 

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

  994.     // Plugin process calls

  995. 

  996.     void activate()

  997.     {

  998. #if 0

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

  1000.         {

  1001.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1002. 

  1003.             if (plugin == nullptr || ! plugin->isEnabled())

  1004.                 continue;

  1005. 

  1006.             plugin->setActive(true, true, false);

  1007.         }

  1008. #endif

  1009.         fIsActive = true;

  1010.     }

  1011. 

  1012.     void deactivate()

  1013.     {

  1014.         fIsActive = false;

  1015. #if 0

  1016.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1017.         {

  1018.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1019. 

  1020.             if (plugin == nullptr || ! plugin->isEnabled())

  1021.                 continue;

  1022. 

  1023.             plugin->setActive(false, true, false);

  1024.         }

  1025. #endif

  1026. 

  1027.         // just in case

  1028.         runPendingRtEvents();

  1029.     }

  1030. 

  1031.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1032.     {

  1033.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1034.         {

  1035.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1036.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1037. 

  1038.             return runPendingRtEvents();;

  1039.         }

  1040. 

  1041.         // ---------------------------------------------------------------

  1042.         // Time Info

  1043. 

  1044.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1045. 

  1046.         pData->timeInfo.playing = timeInfo->playing;

  1047.         pData->timeInfo.frame   = timeInfo->frame;

  1048.         pData->timeInfo.usecs   = timeInfo->usecs;

  1049.         pData->timeInfo.valid   = 0x0;

  1050. 

  1051.         if (timeInfo->bbt.valid)

  1052.         {

  1053.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1054. 

  1055.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1056.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1057.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1058.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1059. 

  1060.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1061.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1062. 

  1063.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

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

  1065.         }

  1066. 

  1067.         // ---------------------------------------------------------------

  1068.         // initialize events

  1069. 

  1070.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in,  kMaxEngineEventInternalCount);

  1071.         carla_zeroStruct<EngineEvent>(pData->bufEvents.out, kMaxEngineEventInternalCount);

  1072. 

  1073.         // ---------------------------------------------------------------

  1074.         // events input (before processing)

  1075. 

  1076.         {

  1077.             uint32_t engineEventIndex = 0;

  1078. 

  1079.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1080.             {

  1081.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1082.                 EngineEvent&           engineEvent(pData->bufEvents.in[engineEventIndex++]);

  1083. 

  1084.                 engineEvent.time = midiEvent.time;

  1085.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1086. 

  1087.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1088.                     break;

  1089.             }

  1090.         }

  1091. 

  1092.         if (fIsPatchbay)

  1093.         {

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

  1095.             // create audio buffers

  1096. 

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

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

  1099.             //uint32_t bufCount[2] = { 2, 2 };

  1100. 

  1101.             // -----------------------------------------------------------

  1102.             // process

  1103. 

  1104.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1105.         }

  1106.         else

  1107.         {

  1108.             // -----------------------------------------------------------

  1109.             // create audio buffers

  1110. 

  1111.             float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1112.             float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1113. 

  1114.             // -----------------------------------------------------------

  1115.             // process

  1116. 

  1117.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1118.         }

  1119. 

  1120.         // ---------------------------------------------------------------

  1121.         // events output (after processing)

  1122. 

  1123.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in, kMaxEngineEventInternalCount);

  1124. 

  1125.         {

  1126.             NativeMidiEvent midiEvent;

  1127. 

  1128.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1129.             {

  1130.                 const EngineEvent& engineEvent(pData->bufEvents.out[i]);

  1131. 

  1132.                 if (engineEvent.type == kEngineEventTypeNull)

  1133.                     break;

  1134. 

  1135.                 midiEvent.time = engineEvent.time;

  1136. 

  1137.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1138.                 {

  1139.                     midiEvent.port = 0;

  1140.                     engineEvent.ctrl.dumpToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1141.                 }

  1142.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1143.                 {

  1144.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1145.                         continue;

  1146. 

  1147.                     midiEvent.port = engineEvent.midi.port;

  1148.                     midiEvent.size = engineEvent.midi.size;

  1149. 

  1150.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1151. 

  1152.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1153.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1154.                 }

  1155.                 else

  1156.                 {

  1157.                     carla_stderr("Unknown event type...");

  1158.                     continue;

  1159.                 }

  1160. 

  1161.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1162.             }

  1163.         }

  1164. 

  1165.         runPendingRtEvents();

  1166.     }

  1167. 

  1168.     // -------------------------------------------------------------------

  1169.     // Plugin UI calls

  1170. 

  1171.     void uiShow(const bool show)

  1172.     {

  1173.         if (show)

  1174.         {

  1175.             CarlaString path(pHost->resourceDir);

  1176.             path += "/carla-plugin";

  1177. 

  1178.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1179. 

  1180.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1181.             fUiServer.start();

  1182. 

  1183.             for (uint i=0; i < pData->curPluginCount; ++i)

  1184.             {

  1185.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1186. 

  1187.                 if (plugin != nullptr && plugin->isEnabled())

  1188.                 {

  1189.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1190.                 }

  1191.             }

  1192.         }

  1193.         else

  1194.         {

  1195.             fUiServer.stop();

  1196.         }

  1197.     }

  1198. 

  1199.     void uiIdle()

  1200.     {

  1201.         CarlaEngine::idle();

  1202.         fUiServer.idle();

  1203. 

  1204.         if (! fUiServer.isOk())

  1205.             return;

  1206. 

  1207.         for (uint i=0; i < pData->curPluginCount; ++i)

  1208.         {

  1209.             const EnginePluginData& plugData(pData->plugins[i]);

  1210.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1211. 

  1212.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1213.             fUiServer.writeMsg(fTmpBuf);

  1214. 

  1215.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1216.             fUiServer.writeMsg(fTmpBuf);

  1217. 

  1218.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1219.             {

  1220.                 if (plugin->isParameterOutput(j))

  1221.                     continue;

  1222. 

  1223.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1224.                 fUiServer.writeMsg(fTmpBuf);

  1225.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1226.                 fUiServer.writeMsg(fTmpBuf);

  1227.             }

  1228.         }

  1229. 

  1230.         switch (fUiServer.getAndResetUiState())

  1231.         {

  1232.         case CarlaExternalUI::UiNone:

  1233.         case CarlaExternalUI::UiShow:

  1234.             break;

  1235.         case CarlaExternalUI::UiCrashed:

  1236.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1237.             break;

  1238.         case CarlaExternalUI::UiHide:

  1239.             pHost->ui_closed(pHost->handle);

  1240.             break;

  1241.         }

  1242.     }

  1243. 

  1244.     // -------------------------------------------------------------------

  1245.     // Plugin state calls

  1246. 

  1247.     char* getState() const

  1248.     {

  1249.         QString string;

  1250.         QTextStream out(&string);

  1251.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1252.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1253.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1254. 

  1255.         bool firstPlugin = true;

  1256.         char strBuf[STR_MAX+1];

  1257. 

  1258.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1259.         {

  1260.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1261. 

  1262.             if (plugin != nullptr && plugin->isEnabled())

  1263.             {

  1264.                 if (! firstPlugin)

  1265.                     out << "\n";

  1266. 

  1267.                 strBuf[0] = '\0';

  1268. 

  1269.                 plugin->getRealName(strBuf);

  1270. 

  1271.                 //if (strBuf[0] != '\0')

  1272.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1273. 

  1274.                 QString content;

  1275.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1276. 

  1277.                 out << " <Plugin>\n";

  1278.                 out << content;

  1279.                 out << " </Plugin>\n";

  1280. 

  1281.                 firstPlugin = false;

  1282.             }

  1283.         }

  1284. 

  1285.         out << "</CARLA-PROJECT>\n";

  1286. 

  1287.         return strdup(string.toUtf8().constData());

  1288.     }

  1289. 

  1290.     void setState(const char* const data)

  1291.     {

  1292.         QDomDocument xml;

  1293.         xml.setContent(QString(data));

  1294. 

  1295.         QDomNode xmlNode(xml.documentElement());

  1296. 

  1297.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1298.         {

  1299.             carla_stderr2("Not a valid Carla project");

  1300.             return;

  1301.         }

  1302. 

  1303.         //bool pluginsAdded = false;

  1304. 

  1305.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1306.         {

  1307.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1308.             {

  1309.                 SaveState saveState;

  1310.                 fillSaveStateFromXmlNode(saveState, node);

  1311. 

  1312.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr);

  1313. 

  1314.                 const void* extraStuff = nullptr;

  1315. 

  1316.                 // check if using GIG, SF2 or SFZ 16outs

  1317.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1318. 

  1319.                 const PluginType ptype(getPluginTypeFromString(saveState.type));

  1320. 

  1321.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1322.                 {

  1323.                     if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)

  1324.                         extraStuff = "true";

  1325.                 }

  1326. 

  1327.                 // TODO - proper find&load plugins

  1328. 

  1329.                 if (addPlugin(ptype, saveState.binary, saveState.name, saveState.label, saveState.uniqueId, extraStuff))

  1330.                 {

  1331.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1332.                         plugin->loadSaveState(saveState);

  1333.                 }

  1334. 

  1335.                 //pluginsAdded = true;

  1336.             }

  1337.         }

  1338. 

  1339.         //if (pluginsAdded)

  1340.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1341.     }

  1342. 

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

  1344. 

  1345. public:

  1346.     #define handlePtr ((CarlaEngineNative*)handle)

  1347. 

  1348.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1349.     {

  1350.         return new CarlaEngineNative(host, false);

  1351.     }

  1352. 

  1353. #ifdef HAVE_JUCE

  1354.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1355.     {

  1356.         return new CarlaEngineNative(host, true);

  1357.     }

  1358. #endif

  1359. 

  1360.     static void _cleanup(NativePluginHandle handle)

  1361.     {

  1362.         delete handlePtr;

  1363.     }

  1364. 

  1365.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1366.     {

  1367.         return handlePtr->getParameterCount();

  1368.     }

  1369. 

  1370.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1371.     {

  1372.         return handlePtr->getParameterInfo(index);

  1373.     }

  1374. 

  1375.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1376.     {

  1377.         return handlePtr->getParameterValue(index);

  1378.     }

  1379. 

  1380.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index /*, float value*/)

  1381.     {

  1382.         return handlePtr->getParameterText(index /*, value*/);

  1383.     }

  1384. 

  1385.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1386.     {

  1387.         return handlePtr->getMidiProgramCount();

  1388.     }

  1389. 

  1390.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1391.     {

  1392.         return handlePtr->getMidiProgramInfo(index);

  1393.     }

  1394. 

  1395.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1396.     {

  1397.         handlePtr->setParameterValue(index, value);

  1398.     }

  1399. 

  1400.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1401.     {

  1402.         handlePtr->setMidiProgram(channel, bank, program);

  1403.     }

  1404. 

  1405.     static void _ui_show(NativePluginHandle handle, bool show)

  1406.     {

  1407.         handlePtr->uiShow(show);

  1408.     }

  1409. 

  1410.     static void _ui_idle(NativePluginHandle handle)

  1411.     {

  1412.         handlePtr->uiIdle();

  1413.     }

  1414. 

  1415.     static void _activate(NativePluginHandle handle)

  1416.     {

  1417.         handlePtr->activate();

  1418.     }

  1419. 

  1420.     static void _deactivate(NativePluginHandle handle)

  1421.     {

  1422.         handlePtr->deactivate();

  1423.     }

  1424. 

  1425.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1426.     {

  1427.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1428.     }

  1429. 

  1430.     static char* _get_state(NativePluginHandle handle)

  1431.     {

  1432.         return handlePtr->getState();

  1433.     }

  1434. 

  1435.     static void _set_state(NativePluginHandle handle, const char* data)

  1436.     {

  1437.         handlePtr->setState(data);

  1438.     }

  1439. 

  1440.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1441.     {

  1442.         switch(opcode)

  1443.         {

  1444.         case PLUGIN_OPCODE_NULL:

  1445.             return 0;

  1446.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1447.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1448.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1449.             return 0;

  1450.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1451.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1452.             return 0;

  1453.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1454.             handlePtr->offlineModeChanged(value != 0);

  1455.             return 0;

  1456.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1457.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1458.             return 0;

  1459.         }

  1460. 

  1461.         return 0;

  1462. 

  1463.         // unused

  1464.         (void)index;

  1465.         (void)ptr;

  1466.     }

  1467. 

  1468.     // -------------------------------------------------------------------

  1469. 

  1470.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1471.     {

  1472.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1473.     }

  1474. 

  1475.     // -------------------------------------------------------------------

  1476. 

  1477.     #undef handlePtr

  1478. 

  1479. private:

  1480.     const NativeHostDescriptor* const pHost;

  1481. 

  1482.     const bool fIsPatchbay; // rack if false

  1483.     bool fIsActive, fIsRunning;

  1484.     CarlaEngineNativeUI fUiServer;

  1485. 

  1486.     char fTmpBuf[STR_MAX+1];

  1487. 

  1488.     CarlaPlugin* _getFirstPlugin() const noexcept

  1489.     {

  1490.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1491.             return nullptr;

  1492. 

  1493.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1494. 

  1495.         if (plugin == nullptr || ! plugin->isEnabled())

  1496.             return nullptr;

  1497. 

  1498.         return pData->plugins[0].plugin;

  1499.     }

  1500. 

  1501.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1502. };

  1503. 

  1504. // -----------------------------------------------------------------------

  1505. 

  1506. static const NativePluginDescriptor carlaRackDesc = {

  1507.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1508.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1509.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1510.     /* audioIns  */ 2,

  1511.     /* audioOuts */ 2,

  1512.     /* midiIns   */ 1,

  1513.     /* midiOuts  */ 1,

  1514.     /* paramIns  */ 0,

  1515.     /* paramOuts */ 0,

  1516.     /* name      */ "Carla-Rack",

  1517.     /* label     */ "carlarack",

  1518.     /* maker     */ "falkTX",

  1519.     /* copyright */ "GNU GPL v2+",

  1520.     CarlaEngineNative::_instantiateRack,

  1521.     CarlaEngineNative::_cleanup,

  1522.     CarlaEngineNative::_get_parameter_count,

  1523.     CarlaEngineNative::_get_parameter_info,

  1524.     CarlaEngineNative::_get_parameter_value,

  1525.     CarlaEngineNative::_get_parameter_text,

  1526.     CarlaEngineNative::_get_midi_program_count,

  1527.     CarlaEngineNative::_get_midi_program_info,

  1528.     CarlaEngineNative::_set_parameter_value,

  1529.     CarlaEngineNative::_set_midi_program,

  1530.     /* _set_custom_data        */ nullptr,

  1531.     CarlaEngineNative::_ui_show,

  1532.     CarlaEngineNative::_ui_idle,

  1533.     /* _ui_set_parameter_value */ nullptr,

  1534.     /* _ui_set_midi_program    */ nullptr,

  1535.     /* _ui_set_custom_data     */ nullptr,

  1536.     CarlaEngineNative::_activate,

  1537.     CarlaEngineNative::_deactivate,

  1538.     CarlaEngineNative::_process,

  1539.     CarlaEngineNative::_get_state,

  1540.     CarlaEngineNative::_set_state,

  1541.     CarlaEngineNative::_dispatcher

  1542. };

  1543. 

  1544. #if 0 //def HAVE_JUCE

  1545. static const NativePluginDescriptor carlaPatchbayDesc = {

  1546.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1547.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1548.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1549.     /* audioIns  */ 2,

  1550.     /* audioOuts */ 2,

  1551.     /* midiIns   */ 1,

  1552.     /* midiOuts  */ 1,

  1553.     /* paramIns  */ 0,

  1554.     /* paramOuts */ 0,

  1555.     /* name      */ "Carla-Patchbay",

  1556.     /* label     */ "carlapatchbay",

  1557.     /* maker     */ "falkTX",

  1558.     /* copyright */ "GNU GPL v2+",

  1559.     CarlaEngineNative::_instantiatePatchbay,

  1560.     CarlaEngineNative::_cleanup,

  1561.     CarlaEngineNative::_get_parameter_count,

  1562.     CarlaEngineNative::_get_parameter_info,

  1563.     CarlaEngineNative::_get_parameter_value,

  1564.     CarlaEngineNative::_get_parameter_text,

  1565.     CarlaEngineNative::_get_midi_program_count,

  1566.     CarlaEngineNative::_get_midi_program_info,

  1567.     CarlaEngineNative::_set_parameter_value,

  1568.     CarlaEngineNative::_set_midi_program,

  1569.     /* _set_custom_data        */ nullptr,

  1570.     CarlaEngineNative::_ui_show,

  1571.     CarlaEngineNative::_ui_idle,

  1572.     /* _ui_set_parameter_value */ nullptr,

  1573.     /* _ui_set_midi_program    */ nullptr,

  1574.     /* _ui_set_custom_data     */ nullptr,

  1575.     CarlaEngineNative::_activate,

  1576.     CarlaEngineNative::_deactivate,

  1577.     CarlaEngineNative::_process,

  1578.     CarlaEngineNative::_get_state,

  1579.     CarlaEngineNative::_set_state,

  1580.     CarlaEngineNative::_dispatcher

  1581. };

  1582. #endif

  1583. 

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

  1585. 

  1586. CARLA_BACKEND_END_NAMESPACE

  1587. 

  1588. CARLA_EXPORT

  1589. void carla_register_native_plugin_carla();

  1590. 

  1591. void carla_register_native_plugin_carla()

  1592. {

  1593.     CARLA_BACKEND_USE_NAMESPACE;

  1594.     carla_register_native_plugin(&carlaRackDesc);

  1595. #if 0 //def HAVE_JUCE

  1596.     carla_register_native_plugin(&carlaPatchbayDesc);

  1597. #endif

  1598. }

  1599. 

  1600. // -----------------------------------------------------------------------

  1601. // Extra stuff for linking purposes

  1602. 

  1603. #ifdef CARLA_PLUGIN_EXPORT

  1604. 

  1605. CARLA_BACKEND_START_NAMESPACE

  1606. 

  1607. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1608. 

  1609. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1610. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1611. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

  1612. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1613. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1614. 

  1615. # ifdef HAVE_JUCE

  1616. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1617. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

  1618. const char*        CarlaEngine::getJuceApiName(const unsigned int) { return nullptr; }

  1619. const char* const* CarlaEngine::getJuceApiDeviceNames(const unsigned int) { return nullptr; }

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

  1621. # endif

  1622. 

  1623. CARLA_BACKEND_END_NAMESPACE

  1624. 

  1625. #ifdef WANT_DSSI

  1626. # include "CarlaDssiUtils.cpp"

  1627. #endif

  1628. 

  1629. #include "CarlaStateUtils.cpp"

  1630. 

  1631. #endif

  1632. 

  1633. // -----------------------------------------------------------------------