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Carla
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Carla/source/backend/engine/CarlaEngineNative.cpp

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  1. /*

  2.  * Carla Plugin Engine (Native)

  3.  * Copyright (C) 2013 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. #ifdef BUILD_BRIDGE

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

  20. #endif

  21. 

  22. #include "CarlaEngineInternal.hpp"

  23. #include "CarlaPipeUtils.hpp"

  24. #include "CarlaStateUtils.hpp"

  25. 

  26. #include "CarlaNative.hpp"

  27. 

  28. #include <QtCore/QTextStream>

  29. 

  30. CARLA_BACKEND_START_NAMESPACE

  31. 

  32. // -----------------------------------------------------------------------

  33. 

  34. class CarlaEngineNativeUI : public CarlaPipeServer

  35. {

  36. public:

  37.     enum UiState {

  38.         UiNone = 0,

  39.         UiHide,

  40.         UiShow,

  41.         UiCrashed

  42.     };

  43. 

  44.     CarlaEngineNativeUI(CarlaEngine* const engine)

  45.         : fEngine(engine),

  46.           fUiState(UiNone)

  47.     {

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

  49.     }

  50. 

  51.     ~CarlaEngineNativeUI() override

  52.     {

  53.         CARLA_ASSERT_INT(fUiState == UiNone, fUiState);

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

  55.     }

  56. 

  57.     void setData(const char* const filename, const double sampleRate, const char* const uiTitle)

  58.     {

  59.         fFilename   = filename;

  60.         fSampleRate = CarlaString(sampleRate);

  61.         fUiTitle    = uiTitle;

  62.     }

  63. 

  64.     UiState getAndResetUiState() noexcept

  65.     {

  66.         const UiState uiState(fUiState);

  67.         fUiState = UiNone;

  68.         return uiState;

  69.     }

  70. 

  71.     void start()

  72.     {

  73.         CarlaPipeServer::start(fFilename, fSampleRate, fUiTitle);

  74.         writeMsg("show\n", 5);

  75.     }

  76. 

  77. protected:

  78.     void msgReceived(const char* const msg) override

  79.     {

  80.         if (std::strcmp(msg, "exiting") == 0)

  81.         {

  82.             waitChildClose();

  83.             fUiState = UiHide;

  84.         }

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

  86.         {

  87.             int option, value;

  88.             const char* valueStr;

  89. 

  90.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(option),);

  91.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(value),);

  92.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(valueStr),);

  93. 

  94.             fEngine->setOption((EngineOption)option, value, valueStr);

  95. 

  96.             delete[] valueStr;

  97.         }

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

  99.         {

  100.             const char* filename;

  101. 

  102.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  103. 

  104.             fEngine->loadFile(filename);

  105. 

  106.             delete[] filename;

  107.         }

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

  109.         {

  110.             const char* filename;

  111. 

  112.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  113. 

  114.             fEngine->loadProject(filename);

  115. 

  116.             delete[] filename;

  117.         }

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

  119.         {

  120.             const char* filename;

  121. 

  122.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  123. 

  124.             fEngine->saveProject(filename);

  125. 

  126.             delete[] filename;

  127.         }

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

  129.         {

  130.             int portA, portB;

  131. 

  132.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portA),);

  133.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portB),);

  134. 

  135.             fEngine->patchbayConnect(portA, portB);

  136.         }

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

  138.         {

  139.             int connectionId;

  140. 

  141.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(connectionId),);

  142. 

  143.             fEngine->patchbayDisconnect(connectionId);

  144.         }

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

  146.         {

  147.             fEngine->patchbayRefresh();

  148.         }

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

  150.         {

  151.             fEngine->transportPlay();

  152.         }

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

  154.         {

  155.             fEngine->transportPause();

  156.         }

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

  158.         {

  159.             long frame;

  160. 

  161.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsLong(frame),);

  162. 

  163.             fEngine->transportRelocate((uint64_t)frame);

  164.         }

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

  166.         {

  167.             int btype, ptype;

  168.             const char* filename = nullptr;

  169.             const char* name;

  170.             const char* label;

  171. 

  172.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(btype),);

  173.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(ptype),);

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

  175.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(name),);

  176.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(label),);

  177. 

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

  179.             {

  180.                 delete[] filename;

  181.                 filename = nullptr;

  182.             }

  183. 

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

  185.             {

  186.                 delete[] name;

  187.                 name = nullptr;

  188.             }

  189. 

  190.             fEngine->addPlugin((BinaryType)btype, (PluginType)ptype, filename, name, label);

  191. 

  192.             if (filename != nullptr)

  193.                 delete[] filename;

  194.             if (name != nullptr)

  195.                 delete[] name;

  196.             delete[] label;

  197.         }

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

  199.         {

  200.             int pluginId;

  201. 

  202.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  203. 

  204.             fEngine->removePlugin(pluginId);

  205.         }

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

  207.         {

  208.             fEngine->removeAllPlugins();

  209.         }

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

  211.         {

  212.             int pluginId;

  213.             const char* newName;

  214. 

  215.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  216.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(newName),);

  217. 

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

  219. 

  220.             delete[] newName;

  221.         }

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

  223.         {

  224.             int pluginId;

  225. 

  226.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  227. 

  228.             fEngine->clonePlugin(pluginId);

  229.         }

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

  231.         {

  232.             int pluginId;

  233. 

  234.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  235. 

  236.             fEngine->replacePlugin(pluginId);

  237.         }

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

  239.         {

  240.             int pluginIdA, pluginIdB;

  241. 

  242.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginIdA),);

  243.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginIdB),);

  244. 

  245.             fEngine->switchPlugins(pluginIdA, pluginIdB);

  246.         }

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

  248.         {

  249.             int pluginId;

  250.             const char* filename;

  251. 

  252.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  253.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  254. 

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

  256.                 plugin->loadStateFromFile(filename);

  257. 

  258.             delete[] filename;

  259.         }

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

  261.         {

  262.             int pluginId;

  263.             const char* filename;

  264. 

  265.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  266.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  267. 

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

  269.                 plugin->saveStateToFile(filename);

  270. 

  271.             delete[] filename;

  272.         }

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

  274.         {

  275.             int pluginId;

  276.             int option;

  277.             bool yesNo;

  278. 

  279.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  280.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(option),);

  281.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo),);

  282. 

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

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

  285.         }

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

  287.         {

  288.             int pluginId;

  289.             bool onOff;

  290. 

  291.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  292.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(onOff),);

  293. 

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

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

  296.         }

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

  298.         {

  299.             int pluginId;

  300.             float value;

  301. 

  302.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  303.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  304. 

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

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

  307.         }

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

  309.         {

  310.             int pluginId;

  311.             float value;

  312. 

  313.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  314.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  315. 

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

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

  318.         }

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

  320.         {

  321.             int pluginId;

  322.             float value;

  323. 

  324.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  325.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  326. 

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

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

  329.         }

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

  331.         {

  332.             int pluginId;

  333.             float value;

  334. 

  335.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  336.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  337. 

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

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

  340.         }

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

  342.         {

  343.             int pluginId;

  344.             float value;

  345. 

  346.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  347.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  348. 

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

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

  351.         }

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

  353.         {

  354.             int pluginId;

  355.             int channel;

  356. 

  357.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  358.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

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

  360. 

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

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

  363.         }

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

  365.         {

  366.             int pluginId;

  367.             int parameterId;

  368.             float value;

  369. 

  370.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  371.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  372.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  373. 

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

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

  376.         }

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

  378.         {

  379.             int pluginId;

  380.             int parameterId;

  381.             int channel;

  382. 

  383.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  384.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  385.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

  386.             CARLA_SAFE_ASSERT_RETURN(channel >= 0 && channel < MAX_MIDI_CHANNELS,);

  387. 

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

  389.                 plugin->setParameterMidiChannel(parameterId, uint8_t(channel), true, false);

  390.         }

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

  392.         {

  393.             int pluginId;

  394.             int parameterId;

  395.             int cc;

  396. 

  397.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  398.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  399.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(cc),);

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

  401. 

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

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

  404.         }

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

  406.         {

  407.             int pluginId;

  408.             int index;

  409. 

  410.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  411.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index),);

  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.             int pluginId;

  419.             int index;

  420. 

  421.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  422.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index),);

  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.             int pluginId;

  430.             const char* type;

  431.             const char* key;

  432.             const char* value;

  433. 

  434.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  435.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(type),);

  436.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(key),);

  437.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(value),);

  438. 

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

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

  441.         }

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

  443.         {

  444.             int pluginId;

  445.             const char* cdata;

  446. 

  447.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  448.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(cdata),);

  449. 

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

  451.                 plugin->setChunkData(cdata);

  452.         }

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

  454.         {

  455.             int pluginId;

  456. 

  457.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  458. 

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

  460.                 plugin->prepareForSave();

  461.         }

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

  463.         {

  464.             int pluginId;

  465.             int channel, note, velocity;

  466. 

  467.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  468.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

  469.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(note),);

  470.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(velocity),);

  471.             CARLA_SAFE_ASSERT_RETURN(channel >= 0 && channel < MAX_MIDI_CHANNELS,);

  472.             CARLA_SAFE_ASSERT_RETURN(note >= 0 && channel < MAX_MIDI_VALUE,);

  473.             CARLA_SAFE_ASSERT_RETURN(velocity >= 0 && channel < MAX_MIDI_VALUE,);

  474. 

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

  476.                 plugin->sendMidiSingleNote(uint8_t(channel), uint8_t(note), uint8_t(velocity), true, true, false);

  477.         }

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

  479.         {

  480.             int pluginId;

  481.             bool yesNo;

  482. 

  483.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  484.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo),);

  485. 

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

  487.                 plugin->showCustomUI(yesNo);

  488.         }

  489.         else

  490.         {

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

  492.         }

  493.     }

  494. 

  495. private:

  496.     CarlaEngine* const fEngine;

  497. 

  498.     CarlaString fFilename;

  499.     CarlaString fSampleRate;

  500.     CarlaString fUiTitle;

  501.     UiState     fUiState;

  502. 

  503.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  504. };

  505. 

  506. // -----------------------------------------------------------------------

  507. 

  508. class CarlaEngineNative : public CarlaEngine

  509. {

  510. public:

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

  512.         : CarlaEngine(),

  513.           pHost(host),

  514.           fIsPatchbay(isPatchbay),

  515.           fIsActive(false),

  516.           fIsRunning(false),

  517.           fUiServer(this)

  518.     {

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

  520. 

  521.         fTmpBuf[STR_MAX] = '\0';

  522. 

  523.         // set-up engine

  524.         if (fIsPatchbay)

  525.         {

  526.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  527.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  528.             pData->options.forceStereo         = false;

  529.             pData->options.preferPluginBridges = false;

  530.             pData->options.preferUiBridges     = false;

  531.             init("Carla-Patchbay");

  532.         }

  533.         else

  534.         {

  535.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  536.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  537.             pData->options.forceStereo         = true;

  538.             pData->options.preferPluginBridges = false;

  539.             pData->options.preferUiBridges     = false;

  540.             init("Carla-Rack");

  541.         }

  542. 

  543.         setCallback(_ui_server_callback, this);

  544.     }

  545. 

  546.     ~CarlaEngineNative() override

  547.     {

  548.         CARLA_ASSERT(! fIsActive);

  549.         carla_debug("CarlaEngineNative::~CarlaEngineNative()");

  550. 

  551.         pData->aboutToClose = true;

  552.         fIsRunning = false;

  553. 

  554.         removeAllPlugins();

  555.         runPendingRtEvents();

  556.         close();

  557.     }

  558. 

  559. protected:

  560.     // -------------------------------------

  561.     // CarlaEngine virtual calls

  562. 

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

  564.     {

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

  566. 

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

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

  569. 

  570.         fIsRunning = true;

  571.         CarlaEngine::init(clientName);

  572.         return true;

  573.     }

  574. 

  575.     bool isRunning() const noexcept override

  576.     {

  577.         return fIsRunning;

  578.     }

  579. 

  580.     bool isOffline() const noexcept override

  581.     {

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

  583.     }

  584. 

  585.     EngineType getType() const noexcept override

  586.     {

  587.         return kEngineTypePlugin;

  588.     }

  589. 

  590.     const char* getCurrentDriverName() const noexcept override

  591.     {

  592.         return "Plugin";

  593.     }

  594. 

  595.     // -------------------------------------------------------------------

  596. 

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

  598.     {

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

  600.         {

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

  602.             return retName;

  603.         }

  604. 

  605.         return nullptr;

  606.     }

  607. 

  608.     // -------------------------------------------------------------------

  609. 

  610.     void bufferSizeChanged(const uint32_t newBufferSize)

  611.     {

  612.         pData->bufferSize = newBufferSize;

  613.         CarlaEngine::bufferSizeChanged(newBufferSize);

  614.     }

  615. 

  616.     void sampleRateChanged(const double newSampleRate)

  617.     {

  618.         pData->sampleRate = newSampleRate;

  619.         CarlaEngine::sampleRateChanged(newSampleRate);

  620.     }

  621. 

  622.     // -------------------------------------------------------------------

  623. 

  624.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  625.     {

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

  627. 

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

  629.         fUiServer.writeMsg(fTmpBuf);

  630. 

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

  632.         fUiServer.writeMsg(fTmpBuf);

  633. 

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

  635.         {

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

  637.             fUiServer.writeAndFixMsg(fTmpBuf);

  638.         }

  639.         else

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

  641. 

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

  643.         {

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

  645.             fUiServer.writeAndFixMsg(fTmpBuf);

  646.         }

  647.         else

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

  649. 

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

  651.         {

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

  653.             fUiServer.writeAndFixMsg(fTmpBuf);

  654.         }

  655.         else

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

  657. 

  658.         plugin->getRealName(fTmpBuf);

  659.         fUiServer.writeAndFixMsg(fTmpBuf);

  660. 

  661.         plugin->getLabel(fTmpBuf);

  662.         fUiServer.writeAndFixMsg(fTmpBuf);

  663. 

  664.         plugin->getMaker(fTmpBuf);

  665.         fUiServer.writeAndFixMsg(fTmpBuf);

  666. 

  667.         plugin->getCopyright(fTmpBuf);

  668.         fUiServer.writeAndFixMsg(fTmpBuf);

  669. 

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

  671.         fUiServer.writeMsg(fTmpBuf);

  672. 

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

  674.         fUiServer.writeMsg(fTmpBuf);

  675.     }

  676. 

  677.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  678.     {

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

  680. 

  681.         uint32_t ins, outs, count;

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

  683.         count = plugin->getParameterCount();

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

  685.         fUiServer.writeMsg(fTmpBuf);

  686. 

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

  688.         {

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

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

  691. 

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

  693.             fUiServer.writeMsg(fTmpBuf);

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

  695.             fUiServer.writeMsg(fTmpBuf);

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

  697.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  699.             fUiServer.writeAndFixMsg(fTmpBuf);

  700. 

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

  702.             fUiServer.writeMsg(fTmpBuf);

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

  704.             fUiServer.writeMsg(fTmpBuf);

  705. 

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

  707.             fUiServer.writeMsg(fTmpBuf);

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

  709.             fUiServer.writeMsg(fTmpBuf);

  710.         }

  711.     }

  712. 

  713.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  714.     {

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

  716. 

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

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

  719.         fUiServer.writeMsg(fTmpBuf);

  720. 

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

  722.         {

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

  724.             fUiServer.writeMsg(fTmpBuf);

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

  726.             fUiServer.writeAndFixMsg(fTmpBuf);

  727.         }

  728. 

  729.         count = plugin->getMidiProgramCount();

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

  731.         fUiServer.writeMsg(fTmpBuf);

  732. 

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

  734.         {

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

  736.             fUiServer.writeMsg(fTmpBuf);

  737. 

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

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

  740.             fUiServer.writeMsg(fTmpBuf);

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

  742.             fUiServer.writeAndFixMsg(fTmpBuf);

  743.         }

  744.     }

  745. 

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

  747.     {

  748.         if (! fIsRunning)

  749.             return;

  750.         if (! fUiServer.isOk())

  751.             return;

  752. 

  753.         CarlaPlugin* plugin;

  754. 

  755.         switch (action)

  756.         {

  757.         case ENGINE_CALLBACK_RELOAD_INFO:

  758.             plugin = getPlugin(pluginId);

  759. 

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

  761.             {

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

  763.                 uiServerSendPluginInfo(plugin);

  764.             }

  765.             break;

  766. 

  767.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  768.             plugin = getPlugin(pluginId);

  769. 

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

  771.             {

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

  773.                 uiServerSendPluginParameters(plugin);

  774.             }

  775.             break;

  776. 

  777.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  778.             plugin = getPlugin(pluginId);

  779. 

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

  781.             {

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

  783.                 uiServerSendPluginPrograms(plugin);

  784.             }

  785.             break;

  786. 

  787.         case ENGINE_CALLBACK_RELOAD_ALL:

  788.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  789.             plugin = getPlugin(pluginId);

  790. 

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

  792.             {

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

  794.                 uiServerSendPluginInfo(plugin);

  795.                 uiServerSendPluginParameters(plugin);

  796.                 uiServerSendPluginPrograms(plugin);

  797.             }

  798.             break;

  799. 

  800.         default:

  801.             break;

  802.         }

  803. 

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

  805.         fUiServer.writeMsg(fTmpBuf);

  806. 

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

  808.         fUiServer.writeMsg(fTmpBuf);

  809. 

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

  811.         fUiServer.writeMsg(fTmpBuf);

  812. 

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

  814.         fUiServer.writeMsg(fTmpBuf);

  815. 

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

  817.         fUiServer.writeMsg(fTmpBuf);

  818. 

  819.         fUiServer.writeAndFixMsg(valueStr);

  820.     }

  821. 

  822.     // -------------------------------------------------------------------

  823.     // Plugin parameter calls

  824. 

  825.     uint32_t getParameterCount() const

  826.     {

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

  828.             return plugin->getParameterCount();

  829. 

  830.         return 0;

  831.     }

  832. 

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

  834.     {

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

  836.         {

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

  838.             {

  839.                 static NativeParameter param;

  840.                 static char strBufName[STR_MAX+1];

  841.                 static char strBufUnit[STR_MAX+1];

  842. 

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

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

  845. 

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

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

  848. 

  849.                 unsigned int hints = 0x0;

  850. 

  851.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  852.                     hints |= ::PARAMETER_IS_BOOLEAN;

  853.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  854.                     hints |= ::PARAMETER_IS_INTEGER;

  855.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  856.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  857.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  858.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  859.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  860.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  861.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  862.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  863.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  864.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  865. 

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

  867.                 {

  868.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  869.                         hints |= ::PARAMETER_IS_ENABLED;

  870.                     if (paramData.type == PARAMETER_OUTPUT)

  871.                         hints |= ::PARAMETER_IS_OUTPUT;

  872.                 }

  873. 

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

  875.                 param.name  = strBufName;

  876.                 param.unit  = strBufUnit;

  877.                 param.ranges.def = paramRanges.def;

  878.                 param.ranges.min = paramRanges.min;

  879.                 param.ranges.max = paramRanges.max;

  880.                 param.ranges.step = paramRanges.step;

  881.                 param.ranges.stepSmall = paramRanges.stepSmall;

  882.                 param.ranges.stepLarge = paramRanges.stepLarge;

  883.                 param.scalePointCount = 0; // TODO

  884.                 param.scalePoints = nullptr;

  885. 

  886.                 return &param;

  887.             }

  888.         }

  889. 

  890.         return nullptr;

  891.     }

  892. 

  893.     float getParameterValue(const uint32_t index) const

  894.     {

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

  896.         {

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

  898.                 return plugin->getParameterValue(index);

  899.         }

  900. 

  901.         return 0.0f;

  902.     }

  903. 

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

  905.     {

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

  907.         {

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

  909.             {

  910.                 static char strBuf[STR_MAX+1];

  911.                 carla_zeroChar(strBuf, STR_MAX+1);

  912. 

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

  914. 

  915.                 return strBuf;

  916.             }

  917.         }

  918. 

  919.         return nullptr;

  920.     }

  921. 

  922.     // -------------------------------------------------------------------

  923.     // Plugin midi-program calls

  924. 

  925.     uint32_t getMidiProgramCount() const

  926.     {

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

  928.            return plugin->getMidiProgramCount();

  929. 

  930.         return 0;

  931.     }

  932. 

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

  934.     {

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

  936.         {

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

  938.             {

  939.                 static NativeMidiProgram midiProg;

  940. 

  941.                 {

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

  943. 

  944.                     midiProg.bank    = midiProgData.bank;

  945.                     midiProg.program = midiProgData.program;

  946.                     midiProg.name    = midiProgData.name;

  947.                 }

  948. 

  949.                 return &midiProg;

  950.             }

  951.         }

  952. 

  953.         return nullptr;

  954.     }

  955. 

  956.     // -------------------------------------------------------------------

  957.     // Plugin state calls

  958. 

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

  960.     {

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

  962.         {

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

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

  965.         }

  966.     }

  967. 

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

  969.     {

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

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

  972.     }

  973. 

  974.     // -------------------------------------------------------------------

  975.     // Plugin process calls

  976. 

  977.     void activate()

  978.     {

  979. #if 0

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

  981.         {

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

  983. 

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

  985.                 continue;

  986. 

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

  988.         }

  989. #endif

  990.         fIsActive = true;

  991.     }

  992. 

  993.     void deactivate()

  994.     {

  995.         fIsActive = false;

  996. #if 0

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

  998.         {

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

  1000. 

  1001.             if (plugin == nullptr || ! plugin->isEnabled())

  1002.                 continue;

  1003. 

  1004.             plugin->setActive(false, true, false);

  1005.         }

  1006. #endif

  1007. 

  1008.         // just in case

  1009.         runPendingRtEvents();

  1010.     }

  1011. 

  1012.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1013.     {

  1014.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1015.         {

  1016.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1017.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1018. 

  1019.             return runPendingRtEvents();;

  1020.         }

  1021. 

  1022.         // ---------------------------------------------------------------

  1023.         // Time Info

  1024. 

  1025.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1026. 

  1027.         pData->timeInfo.playing = timeInfo->playing;

  1028.         pData->timeInfo.frame   = timeInfo->frame;

  1029.         pData->timeInfo.usecs   = timeInfo->usecs;

  1030.         pData->timeInfo.valid   = 0x0;

  1031. 

  1032.         if (timeInfo->bbt.valid)

  1033.         {

  1034.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1035. 

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

  1037.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

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

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

  1040. 

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

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

  1043. 

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

  1045.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1046.         }

  1047. 

  1048.         // ---------------------------------------------------------------

  1049.         // initialize events

  1050. 

  1051.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in,  kEngineMaxInternalEventCount);

  1052.         carla_zeroStruct<EngineEvent>(pData->bufEvents.out, kEngineMaxInternalEventCount);

  1053. 

  1054.         // ---------------------------------------------------------------

  1055.         // events input (before processing)

  1056. 

  1057.         {

  1058.             uint32_t engineEventIndex = 0;

  1059. 

  1060.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kEngineMaxInternalEventCount; ++i)

  1061.             {

  1062.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1063.                 EngineEvent&           engineEvent(pData->bufEvents.in[engineEventIndex++]);

  1064. 

  1065.                 engineEvent.time = midiEvent.time;

  1066.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1067. 

  1068.                 if (engineEventIndex >= kEngineMaxInternalEventCount)

  1069.                     break;

  1070.             }

  1071.         }

  1072. 

  1073.         if (fIsPatchbay)

  1074.         {

  1075.             // -----------------------------------------------------------

  1076.             // create audio buffers

  1077. 

  1078.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1079.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1080.             //uint32_t bufCount[2] = { 2, 2 };

  1081. 

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

  1083.             // process

  1084. 

  1085.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1086.         }

  1087.         else

  1088.         {

  1089.             // -----------------------------------------------------------

  1090.             // create audio buffers

  1091. 

  1092.             float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1093.             float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1094. 

  1095.             // -----------------------------------------------------------

  1096.             // process

  1097. 

  1098.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1099.         }

  1100. 

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

  1102.         // events output (after processing)

  1103. 

  1104.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in, kEngineMaxInternalEventCount);

  1105. 

  1106.         {

  1107.             NativeMidiEvent midiEvent;

  1108. 

  1109.             for (uint32_t i=0; i < kEngineMaxInternalEventCount; ++i)

  1110.             {

  1111.                 const EngineEvent& engineEvent(pData->bufEvents.out[i]);

  1112. 

  1113.                 if (engineEvent.type == kEngineEventTypeNull)

  1114.                     break;

  1115. 

  1116.                 midiEvent.time = engineEvent.time;

  1117. 

  1118.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1119.                 {

  1120.                     midiEvent.port = 0;

  1121.                     engineEvent.ctrl.dumpToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1122.                 }

  1123.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1124.                 {

  1125.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1126.                         continue;

  1127. 

  1128.                     midiEvent.port = engineEvent.midi.port;

  1129.                     midiEvent.size = engineEvent.midi.size;

  1130. 

  1131.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1132. 

  1133.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1134.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1135.                 }

  1136.                 else

  1137.                 {

  1138.                     carla_stderr("Unknown event type...");

  1139.                     continue;

  1140.                 }

  1141. 

  1142.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1143.             }

  1144.         }

  1145. 

  1146.         runPendingRtEvents();

  1147.     }

  1148. 

  1149.     // -------------------------------------------------------------------

  1150.     // Plugin UI calls

  1151. 

  1152.     void uiShow(const bool show)

  1153.     {

  1154.         if (show)

  1155.         {

  1156.             fUiServer.setData("/home/falktx/FOSS/GIT-mine/Carla/source/carla-plugin", pData->sampleRate, pHost->uiName);

  1157.             fUiServer.start();

  1158. 

  1159.             for (uint i=0; i < pData->curPluginCount; ++i)

  1160.             {

  1161.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1162. 

  1163.                 if (plugin != nullptr && plugin->isEnabled())

  1164.                 {

  1165.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1166.                 }

  1167.             }

  1168.         }

  1169.         else

  1170.         {

  1171.             fUiServer.stop();

  1172.         }

  1173.     }

  1174. 

  1175.     void uiIdle()

  1176.     {

  1177.         CarlaEngine::idle();

  1178.         fUiServer.idle();

  1179. 

  1180.         if (! fUiServer.isOk())

  1181.             return;

  1182. 

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

  1184.         {

  1185.             const EnginePluginData& plugData(pData->plugins[i]);

  1186.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1187. 

  1188.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1189.             fUiServer.writeMsg(fTmpBuf);

  1190. 

  1191.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1192.             fUiServer.writeMsg(fTmpBuf);

  1193. 

  1194.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1195.             {

  1196.                 if (plugin->isParameterOutput(j))

  1197.                     continue;

  1198. 

  1199.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1200.                 fUiServer.writeMsg(fTmpBuf);

  1201.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1202.                 fUiServer.writeMsg(fTmpBuf);

  1203.             }

  1204.         }

  1205. 

  1206.         switch (fUiServer.getAndResetUiState())

  1207.         {

  1208.         case CarlaEngineNativeUI::UiNone:

  1209.         case CarlaEngineNativeUI::UiShow:

  1210.             break;

  1211.         case CarlaEngineNativeUI::UiCrashed:

  1212.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1213.             break;

  1214.         case CarlaEngineNativeUI::UiHide:

  1215.             pHost->ui_closed(pHost->handle);

  1216.             break;

  1217.         }

  1218.     }

  1219. 

  1220.     // -------------------------------------------------------------------

  1221.     // Plugin state calls

  1222. 

  1223.     char* getState() const

  1224.     {

  1225.         QString string;

  1226.         QTextStream out(&string);

  1227.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1228.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1229.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1230. 

  1231.         bool firstPlugin = true;

  1232.         char strBuf[STR_MAX+1];

  1233. 

  1234.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1235.         {

  1236.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1237. 

  1238.             if (plugin != nullptr && plugin->isEnabled())

  1239.             {

  1240.                 if (! firstPlugin)

  1241.                     out << "\n";

  1242. 

  1243.                 strBuf[0] = '\0';

  1244. 

  1245.                 plugin->getRealName(strBuf);

  1246. 

  1247.                 if (strBuf[0] != '\0')

  1248.                     out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1249. 

  1250.                 QString content;

  1251.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1252. 

  1253.                 out << " <Plugin>\n";

  1254.                 out << content;

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

  1256. 

  1257.                 firstPlugin = false;

  1258.             }

  1259.         }

  1260. 

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

  1262. 

  1263.         return strdup(string.toUtf8().constData());

  1264.     }

  1265. 

  1266.     void setState(const char* const data)

  1267.     {

  1268.         QDomDocument xml;

  1269.         xml.setContent(QString(data));

  1270. 

  1271.         QDomNode xmlNode(xml.documentElement());

  1272. 

  1273.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1274.         {

  1275.             carla_stderr2("Not a valid Carla project");

  1276.             return;

  1277.         }

  1278. 

  1279.         //bool pluginsAdded = false;

  1280. 

  1281.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1282.         {

  1283.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1284.             {

  1285.                 SaveState saveState;

  1286.                 fillSaveStateFromXmlNode(saveState, node);

  1287. 

  1288.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr)

  1289. 

  1290.                 const void* extraStuff = nullptr;

  1291. 

  1292.                 // check if using GIG, SF2 or SFZ 16outs

  1293.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1294. 

  1295.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1296.                 {

  1297.                     if (std::strcmp(saveState.type, "GIG") == 0 || std::strcmp(saveState.type, "SF2") == 0)

  1298.                         extraStuff = "true";

  1299.                 }

  1300. 

  1301.                 // TODO - proper find&load plugins

  1302. 

  1303.                 if (addPlugin(getPluginTypeFromString(saveState.type), saveState.binary, saveState.name, saveState.label, extraStuff))

  1304.                 {

  1305.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1306.                         plugin->loadSaveState(saveState);

  1307.                 }

  1308. 

  1309.                 //pluginsAdded = true;

  1310.             }

  1311.         }

  1312. 

  1313.         //if (pluginsAdded)

  1314.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1315.     }

  1316. 

  1317.     // -------------------------------------------------------------------

  1318. 

  1319. public:

  1320.     #define handlePtr ((CarlaEngineNative*)handle)

  1321. 

  1322.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1323.     {

  1324.         return new CarlaEngineNative(host, false);

  1325.     }

  1326. 

  1327. #ifdef HAVE_JUCE

  1328.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1329.     {

  1330.         return new CarlaEngineNative(host, true);

  1331.     }

  1332. #endif

  1333. 

  1334.     static void _cleanup(NativePluginHandle handle)

  1335.     {

  1336.         delete handlePtr;

  1337.     }

  1338. 

  1339.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1340.     {

  1341.         return handlePtr->getParameterCount();

  1342.     }

  1343. 

  1344.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1345.     {

  1346.         return handlePtr->getParameterInfo(index);

  1347.     }

  1348. 

  1349.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1350.     {

  1351.         return handlePtr->getParameterValue(index);

  1352.     }

  1353. 

  1354.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index, float value)

  1355.     {

  1356.         return handlePtr->getParameterText(index, value);

  1357.     }

  1358. 

  1359.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1360.     {

  1361.         return handlePtr->getMidiProgramCount();

  1362.     }

  1363. 

  1364.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1365.     {

  1366.         return handlePtr->getMidiProgramInfo(index);

  1367.     }

  1368. 

  1369.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1370.     {

  1371.         handlePtr->setParameterValue(index, value);

  1372.     }

  1373. 

  1374.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1375.     {

  1376.         handlePtr->setMidiProgram(channel, bank, program);

  1377.     }

  1378. 

  1379.     static void _ui_show(NativePluginHandle handle, bool show)

  1380.     {

  1381.         handlePtr->uiShow(show);

  1382.     }

  1383. 

  1384.     static void _ui_idle(NativePluginHandle handle)

  1385.     {

  1386.         handlePtr->uiIdle();

  1387.     }

  1388. 

  1389.     static void _activate(NativePluginHandle handle)

  1390.     {

  1391.         handlePtr->activate();

  1392.     }

  1393. 

  1394.     static void _deactivate(NativePluginHandle handle)

  1395.     {

  1396.         handlePtr->deactivate();

  1397.     }

  1398. 

  1399.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1400.     {

  1401.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1402.     }

  1403. 

  1404.     static char* _get_state(NativePluginHandle handle)

  1405.     {

  1406.         return handlePtr->getState();

  1407.     }

  1408. 

  1409.     static void _set_state(NativePluginHandle handle, const char* data)

  1410.     {

  1411.         handlePtr->setState(data);

  1412.     }

  1413. 

  1414.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1415.     {

  1416.         switch(opcode)

  1417.         {

  1418.         case PLUGIN_OPCODE_NULL:

  1419.             return 0;

  1420.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1421.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1422.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1423.             return 0;

  1424.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1425.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1426.             return 0;

  1427.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1428.             handlePtr->offlineModeChanged(value != 0);

  1429.             return 0;

  1430.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1431.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1432.             return 0;

  1433.         }

  1434. 

  1435.         return 0;

  1436. 

  1437.         // unused

  1438.         (void)index;

  1439.         (void)ptr;

  1440.     }

  1441. 

  1442.     // -------------------------------------------------------------------

  1443. 

  1444.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1445.     {

  1446.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1447.     }

  1448. 

  1449.     // -------------------------------------------------------------------

  1450. 

  1451.     #undef handlePtr

  1452. 

  1453. private:

  1454.     const NativeHostDescriptor* const pHost;

  1455. 

  1456.     const bool fIsPatchbay; // rack if false

  1457.     bool fIsActive, fIsRunning;

  1458.     CarlaEngineNativeUI fUiServer;

  1459. 

  1460.     char fTmpBuf[STR_MAX+1];

  1461. 

  1462.     CarlaPlugin* _getFirstPlugin() const noexcept

  1463.     {

  1464.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1465.             return nullptr;

  1466. 

  1467.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1468. 

  1469.         if (plugin == nullptr || ! plugin->isEnabled())

  1470.             return nullptr;

  1471. 

  1472.         return pData->plugins[0].plugin;

  1473.     }

  1474. 

  1475.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1476. };

  1477. 

  1478. // -----------------------------------------------------------------------

  1479. 

  1480. static const NativePluginDescriptor carlaRackDesc = {

  1481.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1482.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1483.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1484.     /* audioIns  */ 2,

  1485.     /* audioOuts */ 2,

  1486.     /* midiIns   */ 1,

  1487.     /* midiOuts  */ 1,

  1488.     /* paramIns  */ 0,

  1489.     /* paramOuts */ 0,

  1490.     /* name      */ "Carla-Rack",

  1491.     /* label     */ "carla-rack",

  1492.     /* maker     */ "falkTX",

  1493.     /* copyright */ "GNU GPL v2+",

  1494.     CarlaEngineNative::_instantiateRack,

  1495.     CarlaEngineNative::_cleanup,

  1496.     CarlaEngineNative::_get_parameter_count,

  1497.     CarlaEngineNative::_get_parameter_info,

  1498.     CarlaEngineNative::_get_parameter_value,

  1499.     CarlaEngineNative::_get_parameter_text,

  1500.     CarlaEngineNative::_get_midi_program_count,

  1501.     CarlaEngineNative::_get_midi_program_info,

  1502.     CarlaEngineNative::_set_parameter_value,

  1503.     CarlaEngineNative::_set_midi_program,

  1504.     /* _set_custom_data        */ nullptr,

  1505.     CarlaEngineNative::_ui_show,

  1506.     CarlaEngineNative::_ui_idle,

  1507.     /* _ui_set_parameter_value */ nullptr,

  1508.     /* _ui_set_midi_program    */ nullptr,

  1509.     /* _ui_set_custom_data     */ nullptr,

  1510.     CarlaEngineNative::_activate,

  1511.     CarlaEngineNative::_deactivate,

  1512.     CarlaEngineNative::_process,

  1513.     CarlaEngineNative::_get_state,

  1514.     CarlaEngineNative::_set_state,

  1515.     CarlaEngineNative::_dispatcher

  1516. };

  1517. 

  1518. #ifdef HAVE_JUCE

  1519. static const NativePluginDescriptor carlaPatchbayDesc = {

  1520.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1521.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1522.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1523.     /* audioIns  */ 2,

  1524.     /* audioOuts */ 2,

  1525.     /* midiIns   */ 1,

  1526.     /* midiOuts  */ 1,

  1527.     /* paramIns  */ 0,

  1528.     /* paramOuts */ 0,

  1529.     /* name      */ "Carla-Patchbay",

  1530.     /* label     */ "carla-patchbay",

  1531.     /* maker     */ "falkTX",

  1532.     /* copyright */ "GNU GPL v2+",

  1533.     CarlaEngineNative::_instantiatePatchbay,

  1534.     CarlaEngineNative::_cleanup,

  1535.     CarlaEngineNative::_get_parameter_count,

  1536.     CarlaEngineNative::_get_parameter_info,

  1537.     CarlaEngineNative::_get_parameter_value,

  1538.     CarlaEngineNative::_get_parameter_text,

  1539.     CarlaEngineNative::_get_midi_program_count,

  1540.     CarlaEngineNative::_get_midi_program_info,

  1541.     CarlaEngineNative::_set_parameter_value,

  1542.     CarlaEngineNative::_set_midi_program,

  1543.     /* _set_custom_data        */ nullptr,

  1544.     CarlaEngineNative::_ui_show,

  1545.     CarlaEngineNative::_ui_idle,

  1546.     /* _ui_set_parameter_value */ nullptr,

  1547.     /* _ui_set_midi_program    */ nullptr,

  1548.     /* _ui_set_custom_data     */ nullptr,

  1549.     CarlaEngineNative::_activate,

  1550.     CarlaEngineNative::_deactivate,

  1551.     CarlaEngineNative::_process,

  1552.     CarlaEngineNative::_get_state,

  1553.     CarlaEngineNative::_set_state,

  1554.     CarlaEngineNative::_dispatcher

  1555. };

  1556. #endif

  1557. 

  1558. // -----------------------------------------------------------------------

  1559. 

  1560. CARLA_BACKEND_END_NAMESPACE

  1561. 

  1562. CARLA_EXPORT

  1563. void carla_register_native_plugin_carla()

  1564. {

  1565.     CARLA_BACKEND_USE_NAMESPACE

  1566.     carla_register_native_plugin(&carlaRackDesc);

  1567. #ifdef HAVE_JUCE

  1568.     carla_register_native_plugin(&carlaPatchbayDesc);

  1569. #endif

  1570. }

  1571. 

  1572. // -----------------------------------------------------------------------

  1573. // Extra stuff for linking purposes

  1574. 

  1575. #ifdef CARLA_PLUGIN_EXPORT

  1576. 

  1577. CARLA_BACKEND_START_NAMESPACE

  1578. 

  1579. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1580. 

  1581. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1582. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1583. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

  1584. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1585. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1586. 

  1587. # ifdef HAVE_JUCE

  1588. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1589. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

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

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

  1592. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1593. # endif

  1594. 

  1595. CARLA_BACKEND_END_NAMESPACE

  1596. 

  1597. #endif

  1598. 

  1599. // -----------------------------------------------------------------------