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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. #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 "CarlaPipeUtils.hpp"

  29. #include "CarlaStateUtils.hpp"

  30. 

  31. #include "CarlaNative.hpp"

  32. 

  33. #include <QtCore/QTextStream>

  34. 

  35. CARLA_BACKEND_START_NAMESPACE

  36. 

  37. // -----------------------------------------------------------------------

  38. 

  39. class CarlaEngineNativeUI : public CarlaPipeServer

  40. {

  41. public:

  42.     enum UiState {

  43.         UiNone = 0,

  44.         UiHide,

  45.         UiShow,

  46.         UiCrashed

  47.     };

  48. 

  49.     CarlaEngineNativeUI(CarlaEngine* const engine)

  50.         : fEngine(engine),

  51.           fUiState(UiNone)

  52.     {

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

  54.     }

  55. 

  56.     ~CarlaEngineNativeUI() override

  57.     {

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

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

  60.     }

  61. 

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

  63.     {

  64.         fFilename   = filename;

  65.         fSampleRate = CarlaString(sampleRate);

  66.         fUiTitle    = uiTitle;

  67.     }

  68. 

  69.     UiState getAndResetUiState() noexcept

  70.     {

  71.         const UiState uiState(fUiState);

  72.         fUiState = UiNone;

  73.         return uiState;

  74.     }

  75. 

  76.     void start()

  77.     {

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

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

  80.     }

  81. 

  82. protected:

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

  84.     {

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

  86.         {

  87.             waitChildClose();

  88.             fUiState = UiHide;

  89.         }

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

  91.         {

  92.             int option, value;

  93.             const char* valueStr;

  94. 

  95.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(option),);

  96.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(value),);

  97.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(valueStr),);

  98. 

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

  100. 

  101.             delete[] valueStr;

  102.         }

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

  104.         {

  105.             const char* filename;

  106. 

  107.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  108. 

  109.             fEngine->loadFile(filename);

  110. 

  111.             delete[] filename;

  112.         }

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

  114.         {

  115.             const char* filename;

  116. 

  117.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  118. 

  119.             fEngine->loadProject(filename);

  120. 

  121.             delete[] filename;

  122.         }

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

  124.         {

  125.             const char* filename;

  126. 

  127.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  128. 

  129.             fEngine->saveProject(filename);

  130. 

  131.             delete[] filename;

  132.         }

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

  134.         {

  135.             int portA, portB;

  136. 

  137.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portA),);

  138.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portB),);

  139. 

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

  141.         }

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

  143.         {

  144.             int connectionId;

  145. 

  146.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(connectionId),);

  147. 

  148.             fEngine->patchbayDisconnect(connectionId);

  149.         }

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

  151.         {

  152.             fEngine->patchbayRefresh();

  153.         }

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

  155.         {

  156.             fEngine->transportPlay();

  157.         }

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

  159.         {

  160.             fEngine->transportPause();

  161.         }

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

  163.         {

  164.             long frame;

  165. 

  166.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsLong(frame),);

  167. 

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

  169.         }

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

  171.         {

  172.             int btype, ptype;

  173.             const char* filename = nullptr;

  174.             const char* name;

  175.             const char* label;

  176. 

  177.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(btype),);

  178.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(ptype),);

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

  180.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(name),);

  181.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(label),);

  182. 

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

  184.             {

  185.                 delete[] filename;

  186.                 filename = nullptr;

  187.             }

  188. 

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

  190.             {

  191.                 delete[] name;

  192.                 name = nullptr;

  193.             }

  194. 

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

  196. 

  197.             if (filename != nullptr)

  198.                 delete[] filename;

  199.             if (name != nullptr)

  200.                 delete[] name;

  201.             delete[] label;

  202.         }

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

  204.         {

  205.             int pluginId;

  206. 

  207.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  208. 

  209.             fEngine->removePlugin(pluginId);

  210.         }

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

  212.         {

  213.             fEngine->removeAllPlugins();

  214.         }

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

  216.         {

  217.             int pluginId;

  218.             const char* newName;

  219. 

  220.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  221.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(newName),);

  222. 

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

  224. 

  225.             delete[] newName;

  226.         }

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

  228.         {

  229.             int pluginId;

  230. 

  231.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  232. 

  233.             fEngine->clonePlugin(pluginId);

  234.         }

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

  236.         {

  237.             int pluginId;

  238. 

  239.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  240. 

  241.             fEngine->replacePlugin(pluginId);

  242.         }

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

  244.         {

  245.             int pluginIdA, pluginIdB;

  246. 

  247.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginIdA),);

  248.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginIdB),);

  249. 

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

  251.         }

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

  253.         {

  254.             int pluginId;

  255.             const char* filename;

  256. 

  257.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  258.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  259. 

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

  261.                 plugin->loadStateFromFile(filename);

  262. 

  263.             delete[] filename;

  264.         }

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

  266.         {

  267.             int pluginId;

  268.             const char* filename;

  269. 

  270.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  271.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  272. 

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

  274.                 plugin->saveStateToFile(filename);

  275. 

  276.             delete[] filename;

  277.         }

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

  279.         {

  280.             int pluginId;

  281.             int option;

  282.             bool yesNo;

  283. 

  284.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  285.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(option),);

  286.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo),);

  287. 

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

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

  290.         }

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

  292.         {

  293.             int pluginId;

  294.             bool onOff;

  295. 

  296.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  297.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(onOff),);

  298. 

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

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

  301.         }

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

  303.         {

  304.             int pluginId;

  305.             float value;

  306. 

  307.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  308.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  309. 

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

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

  312.         }

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

  314.         {

  315.             int pluginId;

  316.             float value;

  317. 

  318.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  319.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  320. 

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

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

  323.         }

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

  325.         {

  326.             int pluginId;

  327.             float value;

  328. 

  329.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  330.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  331. 

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

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

  334.         }

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

  336.         {

  337.             int pluginId;

  338.             float value;

  339. 

  340.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  341.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  342. 

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

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

  345.         }

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

  347.         {

  348.             int pluginId;

  349.             float value;

  350. 

  351.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  352.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  353. 

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

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

  356.         }

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

  358.         {

  359.             int pluginId;

  360.             int channel;

  361. 

  362.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  363.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

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

  365. 

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

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

  368.         }

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

  370.         {

  371.             int pluginId;

  372.             int parameterId;

  373.             float value;

  374. 

  375.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  376.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  377.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  378. 

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

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

  381.         }

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

  383.         {

  384.             int pluginId;

  385.             int parameterId;

  386.             int channel;

  387. 

  388.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  389.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  390.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

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

  392. 

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

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

  395.         }

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

  397.         {

  398.             int pluginId;

  399.             int parameterId;

  400.             int cc;

  401. 

  402.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  403.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  404.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(cc),);

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

  406. 

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

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

  409.         }

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

  411.         {

  412.             int pluginId;

  413.             int index;

  414. 

  415.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  416.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index),);

  417. 

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

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

  420.         }

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

  422.         {

  423.             int pluginId;

  424.             int index;

  425. 

  426.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  427.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index),);

  428. 

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

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

  431.         }

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

  433.         {

  434.             int pluginId;

  435.             const char* type;

  436.             const char* key;

  437.             const char* value;

  438. 

  439.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  440.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(type),);

  441.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(key),);

  442.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(value),);

  443. 

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

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

  446.         }

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

  448.         {

  449.             int pluginId;

  450.             const char* cdata;

  451. 

  452.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  453.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(cdata),);

  454. 

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

  456.                 plugin->setChunkData(cdata);

  457.         }

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

  459.         {

  460.             int pluginId;

  461. 

  462.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  463. 

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

  465.                 plugin->prepareForSave();

  466.         }

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

  468.         {

  469.             int pluginId;

  470.             int channel, note, velocity;

  471. 

  472.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  473.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

  474.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(note),);

  475.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(velocity),);

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

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

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

  479. 

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

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

  482.         }

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

  484.         {

  485.             int pluginId;

  486.             bool yesNo;

  487. 

  488.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  489.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo),);

  490. 

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

  492.                 plugin->showCustomUI(yesNo);

  493.         }

  494.         else

  495.         {

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

  497.         }

  498.     }

  499. 

  500. private:

  501.     CarlaEngine* const fEngine;

  502. 

  503.     CarlaString fFilename;

  504.     CarlaString fSampleRate;

  505.     CarlaString fUiTitle;

  506.     UiState     fUiState;

  507. 

  508.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  509. };

  510. 

  511. // -----------------------------------------------------------------------

  512. 

  513. class CarlaEngineNative : public CarlaEngine

  514. {

  515. public:

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

  517.         : CarlaEngine(),

  518.           pHost(host),

  519.           fIsPatchbay(isPatchbay),

  520.           fIsActive(false),

  521.           fIsRunning(false),

  522.           fUiServer(this)

  523.     {

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

  525. 

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

  527. 

  528.         // set-up engine

  529.         if (fIsPatchbay)

  530.         {

  531.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  532.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  533.             pData->options.forceStereo         = false;

  534.             pData->options.preferPluginBridges = false;

  535.             pData->options.preferUiBridges     = false;

  536.             init("Carla-Patchbay");

  537.         }

  538.         else

  539.         {

  540.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  541.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  542.             pData->options.forceStereo         = true;

  543.             pData->options.preferPluginBridges = false;

  544.             pData->options.preferUiBridges     = false;

  545.             init("Carla-Rack");

  546.         }

  547. 

  548.         setCallback(_ui_server_callback, this);

  549.     }

  550. 

  551.     ~CarlaEngineNative() override

  552.     {

  553.         CARLA_ASSERT(! fIsActive);

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

  555. 

  556.         pData->aboutToClose = true;

  557.         fIsRunning = false;

  558. 

  559.         removeAllPlugins();

  560.         runPendingRtEvents();

  561.         close();

  562.     }

  563. 

  564. protected:

  565.     // -------------------------------------

  566.     // CarlaEngine virtual calls

  567. 

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

  569.     {

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

  571. 

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

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

  574. 

  575.         fIsRunning = true;

  576.         CarlaEngine::init(clientName);

  577.         return true;

  578.     }

  579. 

  580.     bool isRunning() const noexcept override

  581.     {

  582.         return fIsRunning;

  583.     }

  584. 

  585.     bool isOffline() const noexcept override

  586.     {

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

  588.     }

  589. 

  590.     EngineType getType() const noexcept override

  591.     {

  592.         return kEngineTypePlugin;

  593.     }

  594. 

  595.     const char* getCurrentDriverName() const noexcept override

  596.     {

  597.         return "Plugin";

  598.     }

  599. 

  600.     // -------------------------------------------------------------------

  601. 

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

  603.     {

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

  605.         {

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

  607.             return retName;

  608.         }

  609. 

  610.         return nullptr;

  611.     }

  612. 

  613.     // -------------------------------------------------------------------

  614. 

  615.     void bufferSizeChanged(const uint32_t newBufferSize)

  616.     {

  617.         pData->bufferSize = newBufferSize;

  618.         CarlaEngine::bufferSizeChanged(newBufferSize);

  619.     }

  620. 

  621.     void sampleRateChanged(const double newSampleRate)

  622.     {

  623.         pData->sampleRate = newSampleRate;

  624.         CarlaEngine::sampleRateChanged(newSampleRate);

  625.     }

  626. 

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

  628. 

  629.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  630.     {

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

  632. 

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

  634.         fUiServer.writeMsg(fTmpBuf);

  635. 

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

  637.         fUiServer.writeMsg(fTmpBuf);

  638. 

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

  640.         {

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

  642.             fUiServer.writeAndFixMsg(fTmpBuf);

  643.         }

  644.         else

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

  646. 

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

  648.         {

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

  650.             fUiServer.writeAndFixMsg(fTmpBuf);

  651.         }

  652.         else

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

  654. 

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

  656.         {

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

  658.             fUiServer.writeAndFixMsg(fTmpBuf);

  659.         }

  660.         else

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

  662. 

  663.         plugin->getRealName(fTmpBuf);

  664.         fUiServer.writeAndFixMsg(fTmpBuf);

  665. 

  666.         plugin->getLabel(fTmpBuf);

  667.         fUiServer.writeAndFixMsg(fTmpBuf);

  668. 

  669.         plugin->getMaker(fTmpBuf);

  670.         fUiServer.writeAndFixMsg(fTmpBuf);

  671. 

  672.         plugin->getCopyright(fTmpBuf);

  673.         fUiServer.writeAndFixMsg(fTmpBuf);

  674. 

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

  676.         fUiServer.writeMsg(fTmpBuf);

  677. 

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

  679.         fUiServer.writeMsg(fTmpBuf);

  680.     }

  681. 

  682.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  683.     {

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

  685. 

  686.         uint32_t ins, outs, count;

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

  688.         count = plugin->getParameterCount();

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

  690.         fUiServer.writeMsg(fTmpBuf);

  691. 

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

  693.         {

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

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

  696. 

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

  698.             fUiServer.writeMsg(fTmpBuf);

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

  700.             fUiServer.writeMsg(fTmpBuf);

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

  702.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  704.             fUiServer.writeAndFixMsg(fTmpBuf);

  705. 

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

  707.             fUiServer.writeMsg(fTmpBuf);

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

  709.             fUiServer.writeMsg(fTmpBuf);

  710. 

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

  712.             fUiServer.writeMsg(fTmpBuf);

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

  714.             fUiServer.writeMsg(fTmpBuf);

  715.         }

  716.     }

  717. 

  718.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  719.     {

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

  721. 

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

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

  724.         fUiServer.writeMsg(fTmpBuf);

  725. 

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

  727.         {

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

  729.             fUiServer.writeMsg(fTmpBuf);

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

  731.             fUiServer.writeAndFixMsg(fTmpBuf);

  732.         }

  733. 

  734.         count = plugin->getMidiProgramCount();

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

  736.         fUiServer.writeMsg(fTmpBuf);

  737. 

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

  739.         {

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

  741.             fUiServer.writeMsg(fTmpBuf);

  742. 

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

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

  745.             fUiServer.writeMsg(fTmpBuf);

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

  747.             fUiServer.writeAndFixMsg(fTmpBuf);

  748.         }

  749.     }

  750. 

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

  752.     {

  753.         if (! fIsRunning)

  754.             return;

  755.         if (! fUiServer.isOk())

  756.             return;

  757. 

  758.         CarlaPlugin* plugin;

  759. 

  760.         switch (action)

  761.         {

  762.         case ENGINE_CALLBACK_RELOAD_INFO:

  763.             plugin = getPlugin(pluginId);

  764. 

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

  766.             {

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

  768.                 uiServerSendPluginInfo(plugin);

  769.             }

  770.             break;

  771. 

  772.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  773.             plugin = getPlugin(pluginId);

  774. 

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

  776.             {

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

  778.                 uiServerSendPluginParameters(plugin);

  779.             }

  780.             break;

  781. 

  782.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  783.             plugin = getPlugin(pluginId);

  784. 

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

  786.             {

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

  788.                 uiServerSendPluginPrograms(plugin);

  789.             }

  790.             break;

  791. 

  792.         case ENGINE_CALLBACK_RELOAD_ALL:

  793.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  794.             plugin = getPlugin(pluginId);

  795. 

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

  797.             {

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

  799.                 uiServerSendPluginInfo(plugin);

  800.                 uiServerSendPluginParameters(plugin);

  801.                 uiServerSendPluginPrograms(plugin);

  802.             }

  803.             break;

  804. 

  805.         default:

  806.             break;

  807.         }

  808. 

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

  810.         fUiServer.writeMsg(fTmpBuf);

  811. 

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

  813.         fUiServer.writeMsg(fTmpBuf);

  814. 

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

  816.         fUiServer.writeMsg(fTmpBuf);

  817. 

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

  819.         fUiServer.writeMsg(fTmpBuf);

  820. 

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

  822.         fUiServer.writeMsg(fTmpBuf);

  823. 

  824.         fUiServer.writeAndFixMsg(valueStr);

  825.     }

  826. 

  827.     // -------------------------------------------------------------------

  828.     // Plugin parameter calls

  829. 

  830.     uint32_t getParameterCount() const

  831.     {

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

  833.             return plugin->getParameterCount();

  834. 

  835.         return 0;

  836.     }

  837. 

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

  839.     {

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

  841.         {

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

  843.             {

  844.                 static NativeParameter param;

  845.                 static char strBufName[STR_MAX+1];

  846.                 static char strBufUnit[STR_MAX+1];

  847. 

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

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

  850. 

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

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

  853. 

  854.                 unsigned int hints = 0x0;

  855. 

  856.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  857.                     hints |= ::PARAMETER_IS_BOOLEAN;

  858.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  859.                     hints |= ::PARAMETER_IS_INTEGER;

  860.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  861.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  862.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  863.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  864.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  865.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  866.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  867.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  868.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  869.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  870. 

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

  872.                 {

  873.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  874.                         hints |= ::PARAMETER_IS_ENABLED;

  875.                     if (paramData.type == PARAMETER_OUTPUT)

  876.                         hints |= ::PARAMETER_IS_OUTPUT;

  877.                 }

  878. 

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

  880.                 param.name  = strBufName;

  881.                 param.unit  = strBufUnit;

  882.                 param.ranges.def = paramRanges.def;

  883.                 param.ranges.min = paramRanges.min;

  884.                 param.ranges.max = paramRanges.max;

  885.                 param.ranges.step = paramRanges.step;

  886.                 param.ranges.stepSmall = paramRanges.stepSmall;

  887.                 param.ranges.stepLarge = paramRanges.stepLarge;

  888.                 param.scalePointCount = 0; // TODO

  889.                 param.scalePoints = nullptr;

  890. 

  891.                 return &param;

  892.             }

  893.         }

  894. 

  895.         return nullptr;

  896.     }

  897. 

  898.     float getParameterValue(const uint32_t index) const

  899.     {

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

  901.         {

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

  903.                 return plugin->getParameterValue(index);

  904.         }

  905. 

  906.         return 0.0f;

  907.     }

  908. 

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

  910.     {

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

  912.         {

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

  914.             {

  915.                 static char strBuf[STR_MAX+1];

  916.                 carla_zeroChar(strBuf, STR_MAX+1);

  917. 

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

  919. 

  920.                 return strBuf;

  921.             }

  922.         }

  923. 

  924.         return nullptr;

  925.     }

  926. 

  927.     // -------------------------------------------------------------------

  928.     // Plugin midi-program calls

  929. 

  930.     uint32_t getMidiProgramCount() const

  931.     {

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

  933.            return plugin->getMidiProgramCount();

  934. 

  935.         return 0;

  936.     }

  937. 

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

  939.     {

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

  941.         {

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

  943.             {

  944.                 static NativeMidiProgram midiProg;

  945. 

  946.                 {

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

  948. 

  949.                     midiProg.bank    = midiProgData.bank;

  950.                     midiProg.program = midiProgData.program;

  951.                     midiProg.name    = midiProgData.name;

  952.                 }

  953. 

  954.                 return &midiProg;

  955.             }

  956.         }

  957. 

  958.         return nullptr;

  959.     }

  960. 

  961.     // -------------------------------------------------------------------

  962.     // Plugin state calls

  963. 

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

  965.     {

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

  967.         {

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

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

  970.         }

  971.     }

  972. 

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

  974.     {

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

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

  977.     }

  978. 

  979.     // -------------------------------------------------------------------

  980.     // Plugin process calls

  981. 

  982.     void activate()

  983.     {

  984. #if 0

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

  986.         {

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

  988. 

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

  990.                 continue;

  991. 

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

  993.         }

  994. #endif

  995.         fIsActive = true;

  996.     }

  997. 

  998.     void deactivate()

  999.     {

  1000.         fIsActive = false;

  1001. #if 0

  1002.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1003.         {

  1004.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1005. 

  1006.             if (plugin == nullptr || ! plugin->isEnabled())

  1007.                 continue;

  1008. 

  1009.             plugin->setActive(false, true, false);

  1010.         }

  1011. #endif

  1012. 

  1013.         // just in case

  1014.         runPendingRtEvents();

  1015.     }

  1016. 

  1017.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1018.     {

  1019.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1020.         {

  1021.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1022.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1023. 

  1024.             return runPendingRtEvents();;

  1025.         }

  1026. 

  1027.         // ---------------------------------------------------------------

  1028.         // Time Info

  1029. 

  1030.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1031. 

  1032.         pData->timeInfo.playing = timeInfo->playing;

  1033.         pData->timeInfo.frame   = timeInfo->frame;

  1034.         pData->timeInfo.usecs   = timeInfo->usecs;

  1035.         pData->timeInfo.valid   = 0x0;

  1036. 

  1037.         if (timeInfo->bbt.valid)

  1038.         {

  1039.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1040. 

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

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

  1043.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

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

  1045. 

  1046.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1047.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1048. 

  1049.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1050.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1051.         }

  1052. 

  1053.         // ---------------------------------------------------------------

  1054.         // initialize events

  1055. 

  1056.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in,  kEngineMaxInternalEventCount);

  1057.         carla_zeroStruct<EngineEvent>(pData->bufEvents.out, kEngineMaxInternalEventCount);

  1058. 

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

  1060.         // events input (before processing)

  1061. 

  1062.         {

  1063.             uint32_t engineEventIndex = 0;

  1064. 

  1065.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kEngineMaxInternalEventCount; ++i)

  1066.             {

  1067.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1068.                 EngineEvent&           engineEvent(pData->bufEvents.in[engineEventIndex++]);

  1069. 

  1070.                 engineEvent.time = midiEvent.time;

  1071.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1072. 

  1073.                 if (engineEventIndex >= kEngineMaxInternalEventCount)

  1074.                     break;

  1075.             }

  1076.         }

  1077. 

  1078.         if (fIsPatchbay)

  1079.         {

  1080.             // -----------------------------------------------------------

  1081.             // create audio buffers

  1082. 

  1083.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1084.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1085.             //uint32_t bufCount[2] = { 2, 2 };

  1086. 

  1087.             // -----------------------------------------------------------

  1088.             // process

  1089. 

  1090.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1091.         }

  1092.         else

  1093.         {

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

  1095.             // create audio buffers

  1096. 

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

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

  1099. 

  1100.             // -----------------------------------------------------------

  1101.             // process

  1102. 

  1103.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1104.         }

  1105. 

  1106.         // ---------------------------------------------------------------

  1107.         // events output (after processing)

  1108. 

  1109.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in, kEngineMaxInternalEventCount);

  1110. 

  1111.         {

  1112.             NativeMidiEvent midiEvent;

  1113. 

  1114.             for (uint32_t i=0; i < kEngineMaxInternalEventCount; ++i)

  1115.             {

  1116.                 const EngineEvent& engineEvent(pData->bufEvents.out[i]);

  1117. 

  1118.                 if (engineEvent.type == kEngineEventTypeNull)

  1119.                     break;

  1120. 

  1121.                 midiEvent.time = engineEvent.time;

  1122. 

  1123.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1124.                 {

  1125.                     midiEvent.port = 0;

  1126.                     engineEvent.ctrl.dumpToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1127.                 }

  1128.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1129.                 {

  1130.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1131.                         continue;

  1132. 

  1133.                     midiEvent.port = engineEvent.midi.port;

  1134.                     midiEvent.size = engineEvent.midi.size;

  1135. 

  1136.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1137. 

  1138.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1139.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1140.                 }

  1141.                 else

  1142.                 {

  1143.                     carla_stderr("Unknown event type...");

  1144.                     continue;

  1145.                 }

  1146. 

  1147.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1148.             }

  1149.         }

  1150. 

  1151.         runPendingRtEvents();

  1152.     }

  1153. 

  1154.     // -------------------------------------------------------------------

  1155.     // Plugin UI calls

  1156. 

  1157.     void uiShow(const bool show)

  1158.     {

  1159.         if (show)

  1160.         {

  1161.             fUiServer.setData("/home/falktx/FOSS/GIT-mine/Carla/source/carla-plugin", pData->sampleRate, pHost->uiName);

  1162.             fUiServer.start();

  1163. 

  1164.             for (uint i=0; i < pData->curPluginCount; ++i)

  1165.             {

  1166.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1167. 

  1168.                 if (plugin != nullptr && plugin->isEnabled())

  1169.                 {

  1170.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1171.                 }

  1172.             }

  1173.         }

  1174.         else

  1175.         {

  1176.             fUiServer.stop();

  1177.         }

  1178.     }

  1179. 

  1180.     void uiIdle()

  1181.     {

  1182.         CarlaEngine::idle();

  1183.         fUiServer.idle();

  1184. 

  1185.         if (! fUiServer.isOk())

  1186.             return;

  1187. 

  1188.         for (uint i=0; i < pData->curPluginCount; ++i)

  1189.         {

  1190.             const EnginePluginData& plugData(pData->plugins[i]);

  1191.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1192. 

  1193.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1194.             fUiServer.writeMsg(fTmpBuf);

  1195. 

  1196.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1197.             fUiServer.writeMsg(fTmpBuf);

  1198. 

  1199.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1200.             {

  1201.                 if (plugin->isParameterOutput(j))

  1202.                     continue;

  1203. 

  1204.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1205.                 fUiServer.writeMsg(fTmpBuf);

  1206.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1207.                 fUiServer.writeMsg(fTmpBuf);

  1208.             }

  1209.         }

  1210. 

  1211.         switch (fUiServer.getAndResetUiState())

  1212.         {

  1213.         case CarlaEngineNativeUI::UiNone:

  1214.         case CarlaEngineNativeUI::UiShow:

  1215.             break;

  1216.         case CarlaEngineNativeUI::UiCrashed:

  1217.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1218.             break;

  1219.         case CarlaEngineNativeUI::UiHide:

  1220.             pHost->ui_closed(pHost->handle);

  1221.             break;

  1222.         }

  1223.     }

  1224. 

  1225.     // -------------------------------------------------------------------

  1226.     // Plugin state calls

  1227. 

  1228.     char* getState() const

  1229.     {

  1230.         QString string;

  1231.         QTextStream out(&string);

  1232.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1233.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1234.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1235. 

  1236.         bool firstPlugin = true;

  1237.         char strBuf[STR_MAX+1];

  1238. 

  1239.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1240.         {

  1241.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1242. 

  1243.             if (plugin != nullptr && plugin->isEnabled())

  1244.             {

  1245.                 if (! firstPlugin)

  1246.                     out << "\n";

  1247. 

  1248.                 strBuf[0] = '\0';

  1249. 

  1250.                 plugin->getRealName(strBuf);

  1251. 

  1252.                 if (strBuf[0] != '\0')

  1253.                     out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1254. 

  1255.                 QString content;

  1256.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1257. 

  1258.                 out << " <Plugin>\n";

  1259.                 out << content;

  1260.                 out << " </Plugin>\n";

  1261. 

  1262.                 firstPlugin = false;

  1263.             }

  1264.         }

  1265. 

  1266.         out << "</CARLA-PROJECT>\n";

  1267. 

  1268.         return strdup(string.toUtf8().constData());

  1269.     }

  1270. 

  1271.     void setState(const char* const data)

  1272.     {

  1273.         QDomDocument xml;

  1274.         xml.setContent(QString(data));

  1275. 

  1276.         QDomNode xmlNode(xml.documentElement());

  1277. 

  1278.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1279.         {

  1280.             carla_stderr2("Not a valid Carla project");

  1281.             return;

  1282.         }

  1283. 

  1284.         //bool pluginsAdded = false;

  1285. 

  1286.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1287.         {

  1288.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1289.             {

  1290.                 SaveState saveState;

  1291.                 fillSaveStateFromXmlNode(saveState, node);

  1292. 

  1293.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr)

  1294. 

  1295.                 const void* extraStuff = nullptr;

  1296. 

  1297.                 // check if using GIG, SF2 or SFZ 16outs

  1298.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1299. 

  1300.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1301.                 {

  1302.                     if (std::strcmp(saveState.type, "GIG") == 0 || std::strcmp(saveState.type, "SF2") == 0)

  1303.                         extraStuff = "true";

  1304.                 }

  1305. 

  1306.                 // TODO - proper find&load plugins

  1307. 

  1308.                 if (addPlugin(getPluginTypeFromString(saveState.type), saveState.binary, saveState.name, saveState.label, extraStuff))

  1309.                 {

  1310.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1311.                         plugin->loadSaveState(saveState);

  1312.                 }

  1313. 

  1314.                 //pluginsAdded = true;

  1315.             }

  1316.         }

  1317. 

  1318.         //if (pluginsAdded)

  1319.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1320.     }

  1321. 

  1322.     // -------------------------------------------------------------------

  1323. 

  1324. public:

  1325.     #define handlePtr ((CarlaEngineNative*)handle)

  1326. 

  1327.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1328.     {

  1329.         return new CarlaEngineNative(host, false);

  1330.     }

  1331. 

  1332. #ifdef HAVE_JUCE

  1333.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1334.     {

  1335.         return new CarlaEngineNative(host, true);

  1336.     }

  1337. #endif

  1338. 

  1339.     static void _cleanup(NativePluginHandle handle)

  1340.     {

  1341.         delete handlePtr;

  1342.     }

  1343. 

  1344.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1345.     {

  1346.         return handlePtr->getParameterCount();

  1347.     }

  1348. 

  1349.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1350.     {

  1351.         return handlePtr->getParameterInfo(index);

  1352.     }

  1353. 

  1354.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1355.     {

  1356.         return handlePtr->getParameterValue(index);

  1357.     }

  1358. 

  1359.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index, float value)

  1360.     {

  1361.         return handlePtr->getParameterText(index, value);

  1362.     }

  1363. 

  1364.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1365.     {

  1366.         return handlePtr->getMidiProgramCount();

  1367.     }

  1368. 

  1369.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1370.     {

  1371.         return handlePtr->getMidiProgramInfo(index);

  1372.     }

  1373. 

  1374.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1375.     {

  1376.         handlePtr->setParameterValue(index, value);

  1377.     }

  1378. 

  1379.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1380.     {

  1381.         handlePtr->setMidiProgram(channel, bank, program);

  1382.     }

  1383. 

  1384.     static void _ui_show(NativePluginHandle handle, bool show)

  1385.     {

  1386.         handlePtr->uiShow(show);

  1387.     }

  1388. 

  1389.     static void _ui_idle(NativePluginHandle handle)

  1390.     {

  1391.         handlePtr->uiIdle();

  1392.     }

  1393. 

  1394.     static void _activate(NativePluginHandle handle)

  1395.     {

  1396.         handlePtr->activate();

  1397.     }

  1398. 

  1399.     static void _deactivate(NativePluginHandle handle)

  1400.     {

  1401.         handlePtr->deactivate();

  1402.     }

  1403. 

  1404.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1405.     {

  1406.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1407.     }

  1408. 

  1409.     static char* _get_state(NativePluginHandle handle)

  1410.     {

  1411.         return handlePtr->getState();

  1412.     }

  1413. 

  1414.     static void _set_state(NativePluginHandle handle, const char* data)

  1415.     {

  1416.         handlePtr->setState(data);

  1417.     }

  1418. 

  1419.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1420.     {

  1421.         switch(opcode)

  1422.         {

  1423.         case PLUGIN_OPCODE_NULL:

  1424.             return 0;

  1425.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1426.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1427.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1428.             return 0;

  1429.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1430.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1431.             return 0;

  1432.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1433.             handlePtr->offlineModeChanged(value != 0);

  1434.             return 0;

  1435.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1436.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1437.             return 0;

  1438.         }

  1439. 

  1440.         return 0;

  1441. 

  1442.         // unused

  1443.         (void)index;

  1444.         (void)ptr;

  1445.     }

  1446. 

  1447.     // -------------------------------------------------------------------

  1448. 

  1449.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1450.     {

  1451.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1452.     }

  1453. 

  1454.     // -------------------------------------------------------------------

  1455. 

  1456.     #undef handlePtr

  1457. 

  1458. private:

  1459.     const NativeHostDescriptor* const pHost;

  1460. 

  1461.     const bool fIsPatchbay; // rack if false

  1462.     bool fIsActive, fIsRunning;

  1463.     CarlaEngineNativeUI fUiServer;

  1464. 

  1465.     char fTmpBuf[STR_MAX+1];

  1466. 

  1467.     CarlaPlugin* _getFirstPlugin() const noexcept

  1468.     {

  1469.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1470.             return nullptr;

  1471. 

  1472.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1473. 

  1474.         if (plugin == nullptr || ! plugin->isEnabled())

  1475.             return nullptr;

  1476. 

  1477.         return pData->plugins[0].plugin;

  1478.     }

  1479. 

  1480.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1481. };

  1482. 

  1483. // -----------------------------------------------------------------------

  1484. 

  1485. static const NativePluginDescriptor carlaRackDesc = {

  1486.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1487.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1488.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1489.     /* audioIns  */ 2,

  1490.     /* audioOuts */ 2,

  1491.     /* midiIns   */ 1,

  1492.     /* midiOuts  */ 1,

  1493.     /* paramIns  */ 0,

  1494.     /* paramOuts */ 0,

  1495.     /* name      */ "Carla-Rack",

  1496.     /* label     */ "carla-rack",

  1497.     /* maker     */ "falkTX",

  1498.     /* copyright */ "GNU GPL v2+",

  1499.     CarlaEngineNative::_instantiateRack,

  1500.     CarlaEngineNative::_cleanup,

  1501.     CarlaEngineNative::_get_parameter_count,

  1502.     CarlaEngineNative::_get_parameter_info,

  1503.     CarlaEngineNative::_get_parameter_value,

  1504.     CarlaEngineNative::_get_parameter_text,

  1505.     CarlaEngineNative::_get_midi_program_count,

  1506.     CarlaEngineNative::_get_midi_program_info,

  1507.     CarlaEngineNative::_set_parameter_value,

  1508.     CarlaEngineNative::_set_midi_program,

  1509.     /* _set_custom_data        */ nullptr,

  1510.     CarlaEngineNative::_ui_show,

  1511.     CarlaEngineNative::_ui_idle,

  1512.     /* _ui_set_parameter_value */ nullptr,

  1513.     /* _ui_set_midi_program    */ nullptr,

  1514.     /* _ui_set_custom_data     */ nullptr,

  1515.     CarlaEngineNative::_activate,

  1516.     CarlaEngineNative::_deactivate,

  1517.     CarlaEngineNative::_process,

  1518.     CarlaEngineNative::_get_state,

  1519.     CarlaEngineNative::_set_state,

  1520.     CarlaEngineNative::_dispatcher

  1521. };

  1522. 

  1523. #ifdef HAVE_JUCE

  1524. static const NativePluginDescriptor carlaPatchbayDesc = {

  1525.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1526.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1527.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1528.     /* audioIns  */ 2,

  1529.     /* audioOuts */ 2,

  1530.     /* midiIns   */ 1,

  1531.     /* midiOuts  */ 1,

  1532.     /* paramIns  */ 0,

  1533.     /* paramOuts */ 0,

  1534.     /* name      */ "Carla-Patchbay",

  1535.     /* label     */ "carla-patchbay",

  1536.     /* maker     */ "falkTX",

  1537.     /* copyright */ "GNU GPL v2+",

  1538.     CarlaEngineNative::_instantiatePatchbay,

  1539.     CarlaEngineNative::_cleanup,

  1540.     CarlaEngineNative::_get_parameter_count,

  1541.     CarlaEngineNative::_get_parameter_info,

  1542.     CarlaEngineNative::_get_parameter_value,

  1543.     CarlaEngineNative::_get_parameter_text,

  1544.     CarlaEngineNative::_get_midi_program_count,

  1545.     CarlaEngineNative::_get_midi_program_info,

  1546.     CarlaEngineNative::_set_parameter_value,

  1547.     CarlaEngineNative::_set_midi_program,

  1548.     /* _set_custom_data        */ nullptr,

  1549.     CarlaEngineNative::_ui_show,

  1550.     CarlaEngineNative::_ui_idle,

  1551.     /* _ui_set_parameter_value */ nullptr,

  1552.     /* _ui_set_midi_program    */ nullptr,

  1553.     /* _ui_set_custom_data     */ nullptr,

  1554.     CarlaEngineNative::_activate,

  1555.     CarlaEngineNative::_deactivate,

  1556.     CarlaEngineNative::_process,

  1557.     CarlaEngineNative::_get_state,

  1558.     CarlaEngineNative::_set_state,

  1559.     CarlaEngineNative::_dispatcher

  1560. };

  1561. #endif

  1562. 

  1563. // -----------------------------------------------------------------------

  1564. 

  1565. CARLA_BACKEND_END_NAMESPACE

  1566. 

  1567. CARLA_EXPORT

  1568. void carla_register_native_plugin_carla()

  1569. {

  1570.     CARLA_BACKEND_USE_NAMESPACE

  1571.     carla_register_native_plugin(&carlaRackDesc);

  1572. #ifdef HAVE_JUCE

  1573.     carla_register_native_plugin(&carlaPatchbayDesc);

  1574. #endif

  1575. }

  1576. 

  1577. // -----------------------------------------------------------------------

  1578. // Extra stuff for linking purposes

  1579. 

  1580. #ifdef CARLA_PLUGIN_EXPORT

  1581. 

  1582. CARLA_BACKEND_START_NAMESPACE

  1583. 

  1584. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1585. 

  1586. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1587. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1588. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

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

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

  1591. 

  1592. # ifdef HAVE_JUCE

  1593. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1594. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

  1595. const char*        CarlaEngine::getJuceApiName(const unsigned int) { return nullptr; }

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

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

  1598. # endif

  1599. 

  1600. CARLA_BACKEND_END_NAMESPACE

  1601. 

  1602. #endif

  1603. 

  1604. // -----------------------------------------------------------------------