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Audio plugin host https://kx.studio/carla
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Carla/source/backend/engine/CarlaEngineNative.cpp

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  1. /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or any later version.

  9.  *

  10.  * This program is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the doc/GPL.txt file.

  16.  */

  17. 

  18. #include "CarlaDefines.h"

  19. 

  20. #ifdef BUILD_BRIDGE

  21. # error This file should not be compiled if building bridge

  22. #endif

  23. #ifdef CARLA_OS_WIN

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

  25. #endif

  26. 

  27. #include "CarlaEngineInternal.hpp"

  28. #include "CarlaPlugin.hpp"

  29. 

  30. #include "CarlaBackendUtils.hpp"

  31. #include "CarlaMathUtils.hpp"

  32. #include "CarlaStateUtils.hpp"

  33. 

  34. #include "CarlaExternalUI.hpp"

  35. #include "CarlaNative.hpp"

  36. 

  37. #include <QtCore/QTextStream>

  38. #include <QtXml/QDomNode>

  39. 

  40. CARLA_BACKEND_START_NAMESPACE

  41. 

  42. #if 0

  43. } // Fix editor indentation

  44. #endif

  45. 

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

  47. 

  48. class CarlaEngineNativeUI : public CarlaExternalUI

  49. {

  50. public:

  51.     CarlaEngineNativeUI(CarlaEngine* const engine)

  52.         : fEngine(engine)

  53.     {

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

  55.     }

  56. 

  57.     ~CarlaEngineNativeUI() override

  58.     {

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

  60.     }

  61. 

  62. protected:

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

  64.     {

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

  66.             return true;

  67. 

  68.         bool ok = true;

  69. 

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

  71.         {

  72.             uint32_t option;

  73.             int32_t value;

  74.             const char* valueStr;

  75. 

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

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

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

  79. 

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

  81. 

  82.             delete[] valueStr;

  83.         }

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

  85.         {

  86.             const char* filename;

  87. 

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

  89. 

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

  91. 

  92.             delete[] filename;

  93.         }

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

  95.         {

  96.             const char* filename;

  97. 

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

  99. 

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

  101. 

  102.             delete[] filename;

  103.         }

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

  105.         {

  106.             const char* filename;

  107. 

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

  109. 

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

  111. 

  112.             delete[] filename;

  113.         }

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

  115.         {

  116.             int32_t portA, portB;

  117. 

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

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

  120. 

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

  122.         }

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

  124.         {

  125.             uint32_t connectionId;

  126. 

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

  128. 

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

  130.         }

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

  132.         {

  133.             ok = fEngine->patchbayRefresh();

  134.         }

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

  136.         {

  137.             fEngine->transportPlay();

  138.         }

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

  140.         {

  141.             fEngine->transportPause();

  142.         }

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

  144.         {

  145.             uint64_t frame;

  146. 

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

  148. 

  149.             fEngine->transportRelocate(frame);

  150.         }

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

  152.         {

  153.             uint32_t btype, ptype;

  154.             const char* filename = nullptr;

  155.             const char* name;

  156.             const char* label;

  157.             int64_t uniqueId;

  158. 

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

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

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

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

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

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

  165. 

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

  167.             {

  168.                 delete[] filename;

  169.                 filename = nullptr;

  170.             }

  171. 

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

  173.             {

  174.                 delete[] name;

  175.                 name = nullptr;

  176.             }

  177. 

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

  179. 

  180.             if (filename != nullptr)

  181.                 delete[] filename;

  182.             if (name != nullptr)

  183.                 delete[] name;

  184.             delete[] label;

  185.         }

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

  187.         {

  188.             uint32_t pluginId;

  189. 

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

  191. 

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

  193.         }

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

  195.         {

  196.             ok = fEngine->removeAllPlugins();

  197.         }

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

  199.         {

  200.             uint32_t pluginId;

  201.             const char* newName;

  202. 

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

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

  205. 

  206.             // TODO

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

  208. 

  209.             delete[] newName;

  210.         }

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

  212.         {

  213.             uint32_t pluginId;

  214. 

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

  216. 

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

  218.         }

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

  220.         {

  221.             uint32_t pluginId;

  222. 

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

  224. 

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

  226.         }

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

  228.         {

  229.             uint32_t pluginIdA, pluginIdB;

  230. 

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

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

  233. 

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

  235.         }

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

  237.         {

  238.             uint32_t pluginId;

  239.             const char* filename;

  240. 

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

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

  243. 

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

  245.                 plugin->loadStateFromFile(filename);

  246. 

  247.             delete[] filename;

  248.         }

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

  250.         {

  251.             uint32_t pluginId;

  252.             const char* filename;

  253. 

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

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

  256. 

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

  258.                 plugin->saveStateToFile(filename);

  259. 

  260.             delete[] filename;

  261.         }

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

  263.         {

  264.             uint32_t pluginId, option;

  265.             bool yesNo;

  266. 

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

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

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

  270. 

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

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

  273.         }

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

  275.         {

  276.             uint32_t pluginId;

  277.             bool onOff;

  278. 

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

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

  281. 

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

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

  284.         }

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

  286.         {

  287.             uint32_t pluginId;

  288.             float value;

  289. 

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

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

  292. 

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

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

  295.         }

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

  297.         {

  298.             uint32_t pluginId;

  299.             float value;

  300. 

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

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

  303. 

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

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

  306.         }

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

  308.         {

  309.             uint32_t pluginId;

  310.             float value;

  311. 

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

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

  314. 

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

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

  317.         }

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

  319.         {

  320.             uint32_t pluginId;

  321.             float value;

  322. 

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

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

  325. 

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

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

  328.         }

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

  330.         {

  331.             uint32_t pluginId;

  332.             float value;

  333. 

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

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

  336. 

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

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

  339.         }

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

  341.         {

  342.             uint32_t pluginId;

  343.             int32_t channel;

  344. 

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

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

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

  348. 

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

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

  351.         }

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

  353.         {

  354.             uint32_t pluginId, parameterId;

  355.             float value;

  356. 

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

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

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

  360. 

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

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

  363.         }

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

  365.         {

  366.             uint32_t pluginId, parameterId, channel;

  367. 

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

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

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

  371.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  372. 

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

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

  375.         }

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

  377.         {

  378.             uint32_t pluginId, parameterId;

  379.             int32_t cc;

  380. 

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

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

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

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

  385. 

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

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

  388.         }

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

  390.         {

  391.             uint32_t pluginId;

  392.             int32_t index;

  393. 

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

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

  396. 

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

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

  399.         }

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

  401.         {

  402.             uint32_t pluginId;

  403.             int32_t index;

  404. 

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

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

  407. 

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

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

  410.         }

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

  412.         {

  413.             uint32_t pluginId;

  414.             const char* type;

  415.             const char* key;

  416.             const char* value;

  417. 

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

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

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

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

  422. 

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

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

  425.         }

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

  427.         {

  428.             uint32_t pluginId;

  429.             const char* cdata;

  430. 

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

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

  433. 

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

  435.                 plugin->setChunkData(cdata);

  436.         }

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

  438.         {

  439.             uint32_t pluginId;

  440. 

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

  442. 

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

  444.                 plugin->prepareForSave();

  445.         }

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

  447.         {

  448.             uint32_t pluginId, channel, note, velocity;

  449. 

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

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

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

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

  454.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  455.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  456.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  457. 

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

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

  460.         }

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

  462.         {

  463.             uint32_t pluginId;

  464.             bool yesNo;

  465. 

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

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

  468. 

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

  470.                 plugin->showCustomUI(yesNo);

  471.         }

  472.         else

  473.         {

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

  475.             return false;

  476.         }

  477. 

  478.         if (! ok)

  479.         {

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

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

  482.         }

  483. 

  484.         return true;

  485.     }

  486. 

  487. private:

  488.     CarlaEngine* const fEngine;

  489. 

  490.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  491. };

  492. 

  493. // -----------------------------------------------------------------------

  494. 

  495. class CarlaEngineNative : public CarlaEngine

  496. {

  497. public:

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

  499.         : CarlaEngine(),

  500.           pHost(host),

  501.           fIsPatchbay(isPatchbay),

  502.           fIsActive(false),

  503.           fIsRunning(false),

  504.           fUiServer(this)

  505.     {

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

  507. 

  508.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  509. 

  510.         // set-up engine

  511.         if (fIsPatchbay)

  512.         {

  513.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  514.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  515.             pData->options.forceStereo         = false;

  516.             pData->options.preferPluginBridges = false;

  517.             pData->options.preferUiBridges     = false;

  518.             init("Carla-Patchbay");

  519.         }

  520.         else

  521.         {

  522.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  523.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  524.             pData->options.forceStereo         = true;

  525.             pData->options.preferPluginBridges = false;

  526.             pData->options.preferUiBridges     = false;

  527.             init("Carla-Rack");

  528.         }

  529. 

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

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

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

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

  534. 

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

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

  537. 

  538.         setCallback(_ui_server_callback, this);

  539.     }

  540. 

  541.     ~CarlaEngineNative() override

  542.     {

  543.         CARLA_ASSERT(! fIsActive);

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

  545. 

  546.         pData->aboutToClose = true;

  547.         fIsRunning = false;

  548. 

  549.         removeAllPlugins();

  550.         runPendingRtEvents();

  551.         close();

  552. 

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

  554.     }

  555. 

  556. protected:

  557.     // -------------------------------------

  558.     // CarlaEngine virtual calls

  559. 

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

  561.     {

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

  563. 

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

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

  566. 

  567.         fIsRunning = true;

  568.         CarlaEngine::init(clientName);

  569.         return true;

  570.     }

  571. 

  572.     bool isRunning() const noexcept override

  573.     {

  574.         return fIsRunning;

  575.     }

  576. 

  577.     bool isOffline() const noexcept override

  578.     {

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

  580.     }

  581. 

  582.     EngineType getType() const noexcept override

  583.     {

  584.         return kEngineTypePlugin;

  585.     }

  586. 

  587.     const char* getCurrentDriverName() const noexcept override

  588.     {

  589.         return "Plugin";

  590.     }

  591. 

  592.     // -------------------------------------------------------------------

  593. 

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

  595.     {

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

  597.         {

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

  599.             return retName;

  600.         }

  601. 

  602.         return nullptr;

  603.     }

  604. 

  605.     // -------------------------------------------------------------------

  606. 

  607.     void bufferSizeChanged(const uint32_t newBufferSize)

  608.     {

  609.         pData->bufferSize = newBufferSize;

  610.         CarlaEngine::bufferSizeChanged(newBufferSize);

  611.     }

  612. 

  613.     void sampleRateChanged(const double newSampleRate)

  614.     {

  615.         pData->sampleRate = newSampleRate;

  616.         CarlaEngine::sampleRateChanged(newSampleRate);

  617.     }

  618. 

  619.     // -------------------------------------------------------------------

  620. 

  621.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  622.     {

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

  624. 

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

  626.         fUiServer.writeMsg(fTmpBuf);

  627. 

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

  629.         fUiServer.writeMsg(fTmpBuf);

  630. 

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

  632.         {

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

  634.             fUiServer.writeAndFixMsg(fTmpBuf);

  635.         }

  636.         else

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

  638. 

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

  640.         {

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

  642.             fUiServer.writeAndFixMsg(fTmpBuf);

  643.         }

  644.         else

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

  646. 

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

  648.         {

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

  650.             fUiServer.writeAndFixMsg(fTmpBuf);

  651.         }

  652.         else

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

  654. 

  655.         plugin->getRealName(fTmpBuf);

  656.         fUiServer.writeAndFixMsg(fTmpBuf);

  657. 

  658.         plugin->getLabel(fTmpBuf);

  659.         fUiServer.writeAndFixMsg(fTmpBuf);

  660. 

  661.         plugin->getMaker(fTmpBuf);

  662.         fUiServer.writeAndFixMsg(fTmpBuf);

  663. 

  664.         plugin->getCopyright(fTmpBuf);

  665.         fUiServer.writeAndFixMsg(fTmpBuf);

  666. 

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

  668.         fUiServer.writeMsg(fTmpBuf);

  669. 

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

  671.         fUiServer.writeMsg(fTmpBuf);

  672.     }

  673. 

  674.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  675.     {

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

  677. 

  678.         uint32_t ins, outs, count;

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

  680.         count = plugin->getParameterCount();

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

  682.         fUiServer.writeMsg(fTmpBuf);

  683. 

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

  685.         {

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

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

  688. 

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

  690.             fUiServer.writeMsg(fTmpBuf);

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

  692.             fUiServer.writeMsg(fTmpBuf);

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

  694.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  696.             fUiServer.writeAndFixMsg(fTmpBuf);

  697. 

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

  699.             fUiServer.writeMsg(fTmpBuf);

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

  701.             fUiServer.writeMsg(fTmpBuf);

  702. 

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

  704.             fUiServer.writeMsg(fTmpBuf);

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

  706.             fUiServer.writeMsg(fTmpBuf);

  707.         }

  708.     }

  709. 

  710.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  711.     {

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

  713. 

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

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

  716.         fUiServer.writeMsg(fTmpBuf);

  717. 

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

  719.         {

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

  721.             fUiServer.writeMsg(fTmpBuf);

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

  723.             fUiServer.writeAndFixMsg(fTmpBuf);

  724.         }

  725. 

  726.         count = plugin->getMidiProgramCount();

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

  728.         fUiServer.writeMsg(fTmpBuf);

  729. 

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

  731.         {

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

  733.             fUiServer.writeMsg(fTmpBuf);

  734. 

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

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

  737.             fUiServer.writeMsg(fTmpBuf);

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

  739.             fUiServer.writeAndFixMsg(fTmpBuf);

  740.         }

  741.     }

  742. 

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

  744.     {

  745.         if (! fIsRunning)

  746.             return;

  747.         if (! fUiServer.isOk())

  748.             return;

  749. 

  750.         CarlaPlugin* plugin;

  751. 

  752.         switch (action)

  753.         {

  754.         case ENGINE_CALLBACK_RELOAD_INFO:

  755.             plugin = getPlugin(pluginId);

  756. 

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

  758.             {

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

  760.                 uiServerSendPluginInfo(plugin);

  761.             }

  762.             break;

  763. 

  764.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  765.             plugin = getPlugin(pluginId);

  766. 

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

  768.             {

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

  770.                 uiServerSendPluginParameters(plugin);

  771.             }

  772.             break;

  773. 

  774.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  775.             plugin = getPlugin(pluginId);

  776. 

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

  778.             {

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

  780.                 uiServerSendPluginPrograms(plugin);

  781.             }

  782.             break;

  783. 

  784.         case ENGINE_CALLBACK_RELOAD_ALL:

  785.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  786.             plugin = getPlugin(pluginId);

  787. 

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

  789.             {

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

  791.                 uiServerSendPluginInfo(plugin);

  792.                 uiServerSendPluginParameters(plugin);

  793.                 uiServerSendPluginPrograms(plugin);

  794.             }

  795.             break;

  796. 

  797.         default:

  798.             break;

  799.         }

  800. 

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

  802.         fUiServer.writeMsg(fTmpBuf);

  803. 

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

  805.         fUiServer.writeMsg(fTmpBuf);

  806. 

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

  808.         fUiServer.writeMsg(fTmpBuf);

  809. 

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

  811.         fUiServer.writeMsg(fTmpBuf);

  812. 

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

  814.         fUiServer.writeMsg(fTmpBuf);

  815. 

  816.         fUiServer.writeAndFixMsg(valueStr);

  817.     }

  818. 

  819.     // -------------------------------------------------------------------

  820.     // Plugin parameter calls

  821. 

  822.     uint32_t getParameterCount() const

  823.     {

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

  825.             return plugin->getParameterCount();

  826. 

  827.         return 0;

  828.     }

  829. 

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

  831.     {

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

  833.         {

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

  835.             {

  836.                 static NativeParameter param;

  837.                 static char strBufName[STR_MAX+1];

  838.                 static char strBufUnit[STR_MAX+1];

  839. 

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

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

  842. 

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

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

  845. 

  846.                 unsigned int hints = 0x0;

  847. 

  848.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  849.                     hints |= ::PARAMETER_IS_BOOLEAN;

  850.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  851.                     hints |= ::PARAMETER_IS_INTEGER;

  852.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  853.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  854.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  855.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  856.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  857.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  858.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  859.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  860.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  861.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  862. 

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

  864.                 {

  865.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  866.                         hints |= ::PARAMETER_IS_ENABLED;

  867.                     if (paramData.type == PARAMETER_OUTPUT)

  868.                         hints |= ::PARAMETER_IS_OUTPUT;

  869.                 }

  870. 

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

  872.                 param.name  = strBufName;

  873.                 param.unit  = strBufUnit;

  874.                 param.ranges.def = paramRanges.def;

  875.                 param.ranges.min = paramRanges.min;

  876.                 param.ranges.max = paramRanges.max;

  877.                 param.ranges.step = paramRanges.step;

  878.                 param.ranges.stepSmall = paramRanges.stepSmall;

  879.                 param.ranges.stepLarge = paramRanges.stepLarge;

  880.                 param.scalePointCount = 0; // TODO

  881.                 param.scalePoints = nullptr;

  882. 

  883.                 return &param;

  884.             }

  885.         }

  886. 

  887.         return nullptr;

  888.     }

  889. 

  890.     float getParameterValue(const uint32_t index) const

  891.     {

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

  893.         {

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

  895.                 return plugin->getParameterValue(index);

  896.         }

  897. 

  898.         return 0.0f;

  899.     }

  900. 

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

  902.     {

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

  904.         {

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

  906.             {

  907.                 static char strBuf[STR_MAX+1];

  908.                 carla_zeroChar(strBuf, STR_MAX+1);

  909. 

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

  911. 

  912.                 return strBuf;

  913.             }

  914.         }

  915. 

  916.         return nullptr;

  917.     }

  918. 

  919.     // -------------------------------------------------------------------

  920.     // Plugin midi-program calls

  921. 

  922.     uint32_t getMidiProgramCount() const

  923.     {

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

  925.             return plugin->getMidiProgramCount();

  926. 

  927.         return 0;

  928.     }

  929. 

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

  931.     {

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

  933.         {

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

  935.             {

  936.                 static NativeMidiProgram midiProg;

  937. 

  938.                 {

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

  940. 

  941.                     midiProg.bank    = midiProgData.bank;

  942.                     midiProg.program = midiProgData.program;

  943.                     midiProg.name    = midiProgData.name;

  944.                 }

  945. 

  946.                 return &midiProg;

  947.             }

  948.         }

  949. 

  950.         return nullptr;

  951.     }

  952. 

  953.     // -------------------------------------------------------------------

  954.     // Plugin state calls

  955. 

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

  957.     {

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

  959.         {

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

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

  962.         }

  963.     }

  964. 

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

  966.     {

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

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

  969.     }

  970. 

  971.     // -------------------------------------------------------------------

  972.     // Plugin process calls

  973. 

  974.     void activate()

  975.     {

  976. #if 0

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

  978.         {

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

  980. 

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

  982.                 continue;

  983. 

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

  985.         }

  986. #endif

  987.         fIsActive = true;

  988.     }

  989. 

  990.     void deactivate()

  991.     {

  992.         fIsActive = false;

  993. #if 0

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

  995.         {

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

  997. 

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

  999.                 continue;

  1000. 

  1001.             plugin->setActive(false, true, false);

  1002.         }

  1003. #endif

  1004. 

  1005.         // just in case

  1006.         runPendingRtEvents();

  1007.     }

  1008. 

  1009.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1010.     {

  1011.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1012.         {

  1013.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1014.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1015. 

  1016.             return runPendingRtEvents();;

  1017.         }

  1018. 

  1019.         // ---------------------------------------------------------------

  1020.         // Time Info

  1021. 

  1022.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1023. 

  1024.         pData->timeInfo.playing = timeInfo->playing;

  1025.         pData->timeInfo.frame   = timeInfo->frame;

  1026.         pData->timeInfo.usecs   = timeInfo->usecs;

  1027.         pData->timeInfo.valid   = 0x0;

  1028. 

  1029.         if (timeInfo->bbt.valid)

  1030.         {

  1031.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1032. 

  1033.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1034.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1035.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1036.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1037. 

  1038.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

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

  1040. 

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

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

  1043.         }

  1044. 

  1045.         // ---------------------------------------------------------------

  1046.         // initialize events

  1047. 

  1048.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in,  kMaxEngineEventInternalCount);

  1049.         carla_zeroStruct<EngineEvent>(pData->bufEvents.out, kMaxEngineEventInternalCount);

  1050. 

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

  1052.         // events input (before processing)

  1053. 

  1054.         {

  1055.             uint32_t engineEventIndex = 0;

  1056. 

  1057.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1058.             {

  1059.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1060.                 EngineEvent&           engineEvent(pData->bufEvents.in[engineEventIndex++]);

  1061. 

  1062.                 engineEvent.time = midiEvent.time;

  1063.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1064. 

  1065.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1066.                     break;

  1067.             }

  1068.         }

  1069. 

  1070.         if (fIsPatchbay)

  1071.         {

  1072.             // -----------------------------------------------------------

  1073.             // create audio buffers

  1074. 

  1075.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1076.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1077.             //uint32_t bufCount[2] = { 2, 2 };

  1078. 

  1079.             // -----------------------------------------------------------

  1080.             // process

  1081. 

  1082.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1083.         }

  1084.         else

  1085.         {

  1086.             // -----------------------------------------------------------

  1087.             // create audio buffers

  1088. 

  1089.             float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1090.             float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1091. 

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

  1093.             // process

  1094. 

  1095.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1096.         }

  1097. 

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

  1099.         // events output (after processing)

  1100. 

  1101.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in, kMaxEngineEventInternalCount);

  1102. 

  1103.         {

  1104.             NativeMidiEvent midiEvent;

  1105. 

  1106.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1107.             {

  1108.                 const EngineEvent& engineEvent(pData->bufEvents.out[i]);

  1109. 

  1110.                 if (engineEvent.type == kEngineEventTypeNull)

  1111.                     break;

  1112. 

  1113.                 midiEvent.time = engineEvent.time;

  1114. 

  1115.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1116.                 {

  1117.                     midiEvent.port = 0;

  1118.                     engineEvent.ctrl.dumpToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1119.                 }

  1120.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1121.                 {

  1122.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1123.                         continue;

  1124. 

  1125.                     midiEvent.port = engineEvent.midi.port;

  1126.                     midiEvent.size = engineEvent.midi.size;

  1127. 

  1128.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1129. 

  1130.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1131.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1132.                 }

  1133.                 else

  1134.                 {

  1135.                     carla_stderr("Unknown event type...");

  1136.                     continue;

  1137.                 }

  1138. 

  1139.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1140.             }

  1141.         }

  1142. 

  1143.         runPendingRtEvents();

  1144.     }

  1145. 

  1146.     // -------------------------------------------------------------------

  1147.     // Plugin UI calls

  1148. 

  1149.     void uiShow(const bool show)

  1150.     {

  1151.         if (show)

  1152.         {

  1153.             CarlaString path(pHost->resourceDir);

  1154.             path += "/carla-plugin";

  1155. 

  1156.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.getBuffer());

  1157. 

  1158.             fUiServer.setData(path.getBuffer(), pData->sampleRate, pHost->uiName);

  1159.             fUiServer.start();

  1160. 

  1161.             for (uint i=0; i < pData->curPluginCount; ++i)

  1162.             {

  1163.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1164. 

  1165.                 if (plugin != nullptr && plugin->isEnabled())

  1166.                 {

  1167.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1168.                 }

  1169.             }

  1170.         }

  1171.         else

  1172.         {

  1173.             fUiServer.stop();

  1174.         }

  1175.     }

  1176. 

  1177.     void uiIdle()

  1178.     {

  1179.         CarlaEngine::idle();

  1180.         fUiServer.idle();

  1181. 

  1182.         if (! fUiServer.isOk())

  1183.             return;

  1184. 

  1185.         for (uint i=0; i < pData->curPluginCount; ++i)

  1186.         {

  1187.             const EnginePluginData& plugData(pData->plugins[i]);

  1188.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1189. 

  1190.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1191.             fUiServer.writeMsg(fTmpBuf);

  1192. 

  1193.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1194.             fUiServer.writeMsg(fTmpBuf);

  1195. 

  1196.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1197.             {

  1198.                 if (plugin->isParameterOutput(j))

  1199.                     continue;

  1200. 

  1201.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1202.                 fUiServer.writeMsg(fTmpBuf);

  1203.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1204.                 fUiServer.writeMsg(fTmpBuf);

  1205.             }

  1206.         }

  1207. 

  1208.         switch (fUiServer.getAndResetUiState())

  1209.         {

  1210.         case CarlaExternalUI::UiNone:

  1211.         case CarlaExternalUI::UiShow:

  1212.             break;

  1213.         case CarlaExternalUI::UiCrashed:

  1214.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1215.             break;

  1216.         case CarlaExternalUI::UiHide:

  1217.             pHost->ui_closed(pHost->handle);

  1218.             break;

  1219.         }

  1220.     }

  1221. 

  1222.     // -------------------------------------------------------------------

  1223.     // Plugin state calls

  1224. 

  1225.     char* getState() const

  1226.     {

  1227.         QString string;

  1228.         QTextStream out(&string);

  1229.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1230.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1231.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1232. 

  1233.         bool firstPlugin = true;

  1234.         char strBuf[STR_MAX+1];

  1235. 

  1236.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1237.         {

  1238.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1239. 

  1240.             if (plugin != nullptr && plugin->isEnabled())

  1241.             {

  1242.                 if (! firstPlugin)

  1243.                     out << "\n";

  1244. 

  1245.                 strBuf[0] = '\0';

  1246. 

  1247.                 plugin->getRealName(strBuf);

  1248. 

  1249.                 //if (strBuf[0] != '\0')

  1250.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1251. 

  1252.                 QString content;

  1253.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1254. 

  1255.                 out << " <Plugin>\n";

  1256.                 out << content;

  1257.                 out << " </Plugin>\n";

  1258. 

  1259.                 firstPlugin = false;

  1260.             }

  1261.         }

  1262. 

  1263.         out << "</CARLA-PROJECT>\n";

  1264. 

  1265.         return strdup(string.toUtf8().constData());

  1266.     }

  1267. 

  1268.     void setState(const char* const data)

  1269.     {

  1270.         QDomDocument xml;

  1271.         xml.setContent(QString(data));

  1272. 

  1273.         QDomNode xmlNode(xml.documentElement());

  1274. 

  1275.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1276.         {

  1277.             carla_stderr2("Not a valid Carla project");

  1278.             return;

  1279.         }

  1280. 

  1281.         //bool pluginsAdded = false;

  1282. 

  1283.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1284.         {

  1285.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1286.             {

  1287.                 SaveState saveState;

  1288.                 fillSaveStateFromXmlNode(saveState, node);

  1289. 

  1290.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr);

  1291. 

  1292.                 const void* extraStuff = nullptr;

  1293. 

  1294.                 // check if using GIG, SF2 or SFZ 16outs

  1295.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1296. 

  1297.                 const PluginType ptype(getPluginTypeFromString(saveState.type));

  1298. 

  1299.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1300.                 {

  1301.                     if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)

  1302.                         extraStuff = "true";

  1303.                 }

  1304. 

  1305.                 // TODO - proper find&load plugins

  1306. 

  1307.                 if (addPlugin(ptype, saveState.binary, saveState.name, saveState.label, saveState.uniqueId, extraStuff))

  1308.                 {

  1309.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1310.                         plugin->loadSaveState(saveState);

  1311.                 }

  1312. 

  1313.                 //pluginsAdded = true;

  1314.             }

  1315.         }

  1316. 

  1317.         //if (pluginsAdded)

  1318.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1319.     }

  1320. 

  1321.     // -------------------------------------------------------------------

  1322. 

  1323. public:

  1324.     #define handlePtr ((CarlaEngineNative*)handle)

  1325. 

  1326.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1327.     {

  1328.         return new CarlaEngineNative(host, false);

  1329.     }

  1330. 

  1331. #ifdef HAVE_JUCE

  1332.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1333.     {

  1334.         return new CarlaEngineNative(host, true);

  1335.     }

  1336. #endif

  1337. 

  1338.     static void _cleanup(NativePluginHandle handle)

  1339.     {

  1340.         delete handlePtr;

  1341.     }

  1342. 

  1343.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1344.     {

  1345.         return handlePtr->getParameterCount();

  1346.     }

  1347. 

  1348.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1349.     {

  1350.         return handlePtr->getParameterInfo(index);

  1351.     }

  1352. 

  1353.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1354.     {

  1355.         return handlePtr->getParameterValue(index);

  1356.     }

  1357. 

  1358.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index, float value)

  1359.     {

  1360.         return handlePtr->getParameterText(index, value);

  1361.     }

  1362. 

  1363.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1364.     {

  1365.         return handlePtr->getMidiProgramCount();

  1366.     }

  1367. 

  1368.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1369.     {

  1370.         return handlePtr->getMidiProgramInfo(index);

  1371.     }

  1372. 

  1373.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1374.     {

  1375.         handlePtr->setParameterValue(index, value);

  1376.     }

  1377. 

  1378.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1379.     {

  1380.         handlePtr->setMidiProgram(channel, bank, program);

  1381.     }

  1382. 

  1383.     static void _ui_show(NativePluginHandle handle, bool show)

  1384.     {

  1385.         handlePtr->uiShow(show);

  1386.     }

  1387. 

  1388.     static void _ui_idle(NativePluginHandle handle)

  1389.     {

  1390.         handlePtr->uiIdle();

  1391.     }

  1392. 

  1393.     static void _activate(NativePluginHandle handle)

  1394.     {

  1395.         handlePtr->activate();

  1396.     }

  1397. 

  1398.     static void _deactivate(NativePluginHandle handle)

  1399.     {

  1400.         handlePtr->deactivate();

  1401.     }

  1402. 

  1403.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1404.     {

  1405.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1406.     }

  1407. 

  1408.     static char* _get_state(NativePluginHandle handle)

  1409.     {

  1410.         return handlePtr->getState();

  1411.     }

  1412. 

  1413.     static void _set_state(NativePluginHandle handle, const char* data)

  1414.     {

  1415.         handlePtr->setState(data);

  1416.     }

  1417. 

  1418.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1419.     {

  1420.         switch(opcode)

  1421.         {

  1422.         case PLUGIN_OPCODE_NULL:

  1423.             return 0;

  1424.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1425.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1426.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1427.             return 0;

  1428.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1429.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1430.             return 0;

  1431.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1432.             handlePtr->offlineModeChanged(value != 0);

  1433.             return 0;

  1434.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1435.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1436.             return 0;

  1437.         }

  1438. 

  1439.         return 0;

  1440. 

  1441.         // unused

  1442.         (void)index;

  1443.         (void)ptr;

  1444.     }

  1445. 

  1446.     // -------------------------------------------------------------------

  1447. 

  1448.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1449.     {

  1450.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1451.     }

  1452. 

  1453.     // -------------------------------------------------------------------

  1454. 

  1455.     #undef handlePtr

  1456. 

  1457. private:

  1458.     const NativeHostDescriptor* const pHost;

  1459. 

  1460.     const bool fIsPatchbay; // rack if false

  1461.     bool fIsActive, fIsRunning;

  1462.     CarlaEngineNativeUI fUiServer;

  1463. 

  1464.     char fTmpBuf[STR_MAX+1];

  1465. 

  1466.     CarlaPlugin* _getFirstPlugin() const noexcept

  1467.     {

  1468.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1469.             return nullptr;

  1470. 

  1471.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1472. 

  1473.         if (plugin == nullptr || ! plugin->isEnabled())

  1474.             return nullptr;

  1475. 

  1476.         return pData->plugins[0].plugin;

  1477.     }

  1478. 

  1479.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1480. };

  1481. 

  1482. // -----------------------------------------------------------------------

  1483. 

  1484. static const NativePluginDescriptor carlaRackDesc = {

  1485.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1486.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1487.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1488.     /* audioIns  */ 2,

  1489.     /* audioOuts */ 2,

  1490.     /* midiIns   */ 1,

  1491.     /* midiOuts  */ 1,

  1492.     /* paramIns  */ 0,

  1493.     /* paramOuts */ 0,

  1494.     /* name      */ "Carla-Rack",

  1495.     /* label     */ "carlarack",

  1496.     /* maker     */ "falkTX",

  1497.     /* copyright */ "GNU GPL v2+",

  1498.     CarlaEngineNative::_instantiateRack,

  1499.     CarlaEngineNative::_cleanup,

  1500.     CarlaEngineNative::_get_parameter_count,

  1501.     CarlaEngineNative::_get_parameter_info,

  1502.     CarlaEngineNative::_get_parameter_value,

  1503.     CarlaEngineNative::_get_parameter_text,

  1504.     CarlaEngineNative::_get_midi_program_count,

  1505.     CarlaEngineNative::_get_midi_program_info,

  1506.     CarlaEngineNative::_set_parameter_value,

  1507.     CarlaEngineNative::_set_midi_program,

  1508.     /* _set_custom_data        */ nullptr,

  1509.     CarlaEngineNative::_ui_show,

  1510.     CarlaEngineNative::_ui_idle,

  1511.     /* _ui_set_parameter_value */ nullptr,

  1512.     /* _ui_set_midi_program    */ nullptr,

  1513.     /* _ui_set_custom_data     */ nullptr,

  1514.     CarlaEngineNative::_activate,

  1515.     CarlaEngineNative::_deactivate,

  1516.     CarlaEngineNative::_process,

  1517.     CarlaEngineNative::_get_state,

  1518.     CarlaEngineNative::_set_state,

  1519.     CarlaEngineNative::_dispatcher

  1520. };

  1521. 

  1522. #if 0 //def HAVE_JUCE

  1523. static const NativePluginDescriptor carlaPatchbayDesc = {

  1524.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1525.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1526.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1527.     /* audioIns  */ 2,

  1528.     /* audioOuts */ 2,

  1529.     /* midiIns   */ 1,

  1530.     /* midiOuts  */ 1,

  1531.     /* paramIns  */ 0,

  1532.     /* paramOuts */ 0,

  1533.     /* name      */ "Carla-Patchbay",

  1534.     /* label     */ "carlapatchbay",

  1535.     /* maker     */ "falkTX",

  1536.     /* copyright */ "GNU GPL v2+",

  1537.     CarlaEngineNative::_instantiatePatchbay,

  1538.     CarlaEngineNative::_cleanup,

  1539.     CarlaEngineNative::_get_parameter_count,

  1540.     CarlaEngineNative::_get_parameter_info,

  1541.     CarlaEngineNative::_get_parameter_value,

  1542.     CarlaEngineNative::_get_parameter_text,

  1543.     CarlaEngineNative::_get_midi_program_count,

  1544.     CarlaEngineNative::_get_midi_program_info,

  1545.     CarlaEngineNative::_set_parameter_value,

  1546.     CarlaEngineNative::_set_midi_program,

  1547.     /* _set_custom_data        */ nullptr,

  1548.     CarlaEngineNative::_ui_show,

  1549.     CarlaEngineNative::_ui_idle,

  1550.     /* _ui_set_parameter_value */ nullptr,

  1551.     /* _ui_set_midi_program    */ nullptr,

  1552.     /* _ui_set_custom_data     */ nullptr,

  1553.     CarlaEngineNative::_activate,

  1554.     CarlaEngineNative::_deactivate,

  1555.     CarlaEngineNative::_process,

  1556.     CarlaEngineNative::_get_state,

  1557.     CarlaEngineNative::_set_state,

  1558.     CarlaEngineNative::_dispatcher

  1559. };

  1560. #endif

  1561. 

  1562. // -----------------------------------------------------------------------

  1563. 

  1564. CARLA_BACKEND_END_NAMESPACE

  1565. 

  1566. CARLA_EXPORT

  1567. void carla_register_native_plugin_carla();

  1568. 

  1569. void carla_register_native_plugin_carla()

  1570. {

  1571.     CARLA_BACKEND_USE_NAMESPACE;

  1572.     carla_register_native_plugin(&carlaRackDesc);

  1573. #if 0 //def HAVE_JUCE

  1574.     carla_register_native_plugin(&carlaPatchbayDesc);

  1575. #endif

  1576. }

  1577. 

  1578. // -----------------------------------------------------------------------

  1579. // Extra stuff for linking purposes

  1580. 

  1581. #ifdef CARLA_PLUGIN_EXPORT

  1582. 

  1583. CARLA_BACKEND_START_NAMESPACE

  1584. 

  1585. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1586. 

  1587. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1588. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1589. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

  1590. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1591. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1592. 

  1593. # ifdef HAVE_JUCE

  1594. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1595. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

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

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

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

  1599. # endif

  1600. 

  1601. CARLA_BACKEND_END_NAMESPACE

  1602. 

  1603. #ifdef WANT_DSSI

  1604. # include "CarlaDssiUtils.cpp"

  1605. #endif

  1606. 

  1607. #include "CarlaStateUtils.cpp"

  1608. 

  1609. #endif

  1610. 

  1611. // -----------------------------------------------------------------------