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

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  1. /*

  2.  * Carla Plugin Host

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

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaDefines.h"

  19. 

  20. #ifdef BUILD_BRIDGE

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

  22. #endif

  23. #ifdef CARLA_OS_WIN

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

  25. #endif

  26. 

  27. #include "CarlaEngineInternal.hpp"

  28. #include "CarlaPlugin.hpp"

  29. 

  30. #include "CarlaBackendUtils.hpp"

  31. #include "CarlaPipeUtils.hpp"

  32. #include "CarlaStateUtils.hpp"

  33. 

  34. #include "CarlaNative.hpp"

  35. 

  36. #ifdef HAVE_JUCE

  37. # include "juce_audio_basics.h"

  38. using juce::FloatVectorOperations;

  39. #endif

  40. 

  41. #include <QtCore/QTextStream>

  42. #include <QtXml/QDomNode>

  43. 

  44. CARLA_BACKEND_START_NAMESPACE

  45. 

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

  47. 

  48. class CarlaEngineNativeUI : public CarlaPipeServer

  49. {

  50. public:

  51.     enum UiState {

  52.         UiNone = 0,

  53.         UiHide,

  54.         UiShow,

  55.         UiCrashed

  56.     };

  57. 

  58.     CarlaEngineNativeUI(CarlaEngine* const engine)

  59.         : fEngine(engine),

  60.           fUiState(UiNone)

  61.     {

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

  63.     }

  64. 

  65.     ~CarlaEngineNativeUI() override

  66.     {

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

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

  69.     }

  70. 

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

  72.     {

  73.         fFilename   = filename;

  74.         fSampleRate = CarlaString(sampleRate);

  75.         fUiTitle    = uiTitle;

  76.     }

  77. 

  78.     UiState getAndResetUiState() noexcept

  79.     {

  80.         const UiState uiState(fUiState);

  81.         fUiState = UiNone;

  82.         return uiState;

  83.     }

  84. 

  85.     void start()

  86.     {

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

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

  89.     }

  90. 

  91. protected:

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

  93.     {

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

  95.         {

  96.             waitChildClose();

  97.             fUiState = UiHide;

  98.         }

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

  100.         {

  101.             int option, value;

  102.             const char* valueStr;

  103. 

  104.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(option),);

  105.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(value),);

  106.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(valueStr),);

  107. 

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

  109. 

  110.             delete[] valueStr;

  111.         }

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

  113.         {

  114.             const char* filename;

  115. 

  116.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  117. 

  118.             fEngine->loadFile(filename);

  119. 

  120.             delete[] filename;

  121.         }

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

  123.         {

  124.             const char* filename;

  125. 

  126.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  127. 

  128.             fEngine->loadProject(filename);

  129. 

  130.             delete[] filename;

  131.         }

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

  133.         {

  134.             const char* filename;

  135. 

  136.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  137. 

  138.             fEngine->saveProject(filename);

  139. 

  140.             delete[] filename;

  141.         }

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

  143.         {

  144.             int portA, portB;

  145. 

  146.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portA),);

  147.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portB),);

  148. 

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

  150.         }

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

  152.         {

  153.             int connectionId;

  154. 

  155.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(connectionId),);

  156. 

  157.             fEngine->patchbayDisconnect(connectionId);

  158.         }

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

  160.         {

  161.             fEngine->patchbayRefresh();

  162.         }

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

  164.         {

  165.             fEngine->transportPlay();

  166.         }

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

  168.         {

  169.             fEngine->transportPause();

  170.         }

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

  172.         {

  173.             long frame;

  174. 

  175.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsLong(frame),);

  176. 

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

  178.         }

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

  180.         {

  181.             int btype, ptype;

  182.             const char* filename = nullptr;

  183.             const char* name;

  184.             const char* label;

  185. 

  186.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(btype),);

  187.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(ptype),);

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

  189.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(name),);

  190.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(label),);

  191. 

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

  193.             {

  194.                 delete[] filename;

  195.                 filename = nullptr;

  196.             }

  197. 

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

  199.             {

  200.                 delete[] name;

  201.                 name = nullptr;

  202.             }

  203. 

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

  205. 

  206.             if (filename != nullptr)

  207.                 delete[] filename;

  208.             if (name != nullptr)

  209.                 delete[] name;

  210.             delete[] label;

  211.         }

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

  213.         {

  214.             int pluginId;

  215. 

  216.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  217. 

  218.             fEngine->removePlugin(pluginId);

  219.         }

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

  221.         {

  222.             fEngine->removeAllPlugins();

  223.         }

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

  225.         {

  226.             int pluginId;

  227.             const char* newName;

  228. 

  229.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  230.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(newName),);

  231. 

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

  233. 

  234.             delete[] newName;

  235.         }

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

  237.         {

  238.             int pluginId;

  239. 

  240.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  241. 

  242.             fEngine->clonePlugin(pluginId);

  243.         }

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

  245.         {

  246.             int pluginId;

  247. 

  248.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  249. 

  250.             fEngine->replacePlugin(pluginId);

  251.         }

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

  253.         {

  254.             int pluginIdA, pluginIdB;

  255. 

  256.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginIdA),);

  257.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginIdB),);

  258. 

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

  260.         }

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

  262.         {

  263.             int pluginId;

  264.             const char* filename;

  265. 

  266.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  267.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  268. 

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

  270.                 plugin->loadStateFromFile(filename);

  271. 

  272.             delete[] filename;

  273.         }

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

  275.         {

  276.             int pluginId;

  277.             const char* filename;

  278. 

  279.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  280.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  281. 

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

  283.                 plugin->saveStateToFile(filename);

  284. 

  285.             delete[] filename;

  286.         }

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

  288.         {

  289.             int pluginId;

  290.             int option;

  291.             bool yesNo;

  292. 

  293.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  294.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(option),);

  295.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo),);

  296. 

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

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

  299.         }

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

  301.         {

  302.             int pluginId;

  303.             bool onOff;

  304. 

  305.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  306.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(onOff),);

  307. 

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

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

  310.         }

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

  312.         {

  313.             int pluginId;

  314.             float value;

  315. 

  316.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  317.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  318. 

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

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

  321.         }

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

  323.         {

  324.             int pluginId;

  325.             float value;

  326. 

  327.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  328.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  329. 

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

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

  332.         }

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

  334.         {

  335.             int pluginId;

  336.             float value;

  337. 

  338.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  339.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  340. 

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

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

  343.         }

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

  345.         {

  346.             int pluginId;

  347.             float value;

  348. 

  349.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  350.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  351. 

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

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

  354.         }

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

  356.         {

  357.             int pluginId;

  358.             float value;

  359. 

  360.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  361.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  362. 

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

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

  365.         }

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

  367.         {

  368.             int pluginId;

  369.             int channel;

  370. 

  371.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  372.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

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

  374. 

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

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

  377.         }

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

  379.         {

  380.             int pluginId;

  381.             int parameterId;

  382.             float value;

  383. 

  384.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  385.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  386.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  387. 

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

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

  390.         }

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

  392.         {

  393.             int pluginId;

  394.             int parameterId;

  395.             int channel;

  396. 

  397.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  398.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  399.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

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

  401. 

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

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

  404.         }

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

  406.         {

  407.             int pluginId;

  408.             int parameterId;

  409.             int cc;

  410. 

  411.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  412.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(parameterId),);

  413.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(cc),);

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

  415. 

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

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

  418.         }

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

  420.         {

  421.             int pluginId;

  422.             int index;

  423. 

  424.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  425.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index),);

  426. 

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

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

  429.         }

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

  431.         {

  432.             int pluginId;

  433.             int index;

  434. 

  435.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  436.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index),);

  437. 

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

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

  440.         }

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

  442.         {

  443.             int pluginId;

  444.             const char* type;

  445.             const char* key;

  446.             const char* value;

  447. 

  448.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  449.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(type),);

  450.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(key),);

  451.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(value),);

  452. 

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

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

  455.         }

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

  457.         {

  458.             int pluginId;

  459.             const char* cdata;

  460. 

  461.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  462.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(cdata),);

  463. 

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

  465.                 plugin->setChunkData(cdata);

  466.         }

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

  468.         {

  469.             int pluginId;

  470. 

  471.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  472. 

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

  474.                 plugin->prepareForSave();

  475.         }

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

  477.         {

  478.             int pluginId;

  479.             int channel, note, velocity;

  480. 

  481.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  482.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

  483.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(note),);

  484.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(velocity),);

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

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

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

  488. 

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

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

  491.         }

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

  493.         {

  494.             int pluginId;

  495.             bool yesNo;

  496. 

  497.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(pluginId),);

  498.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo),);

  499. 

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

  501.                 plugin->showCustomUI(yesNo);

  502.         }

  503.         else

  504.         {

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

  506.         }

  507.     }

  508. 

  509. private:

  510.     CarlaEngine* const fEngine;

  511. 

  512.     CarlaString fFilename;

  513.     CarlaString fSampleRate;

  514.     CarlaString fUiTitle;

  515.     UiState     fUiState;

  516. 

  517.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  518. };

  519. 

  520. // -----------------------------------------------------------------------

  521. 

  522. class CarlaEngineNative : public CarlaEngine

  523. {

  524. public:

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

  526.         : CarlaEngine(),

  527.           pHost(host),

  528.           fIsPatchbay(isPatchbay),

  529.           fIsActive(false),

  530.           fIsRunning(false),

  531.           fUiServer(this)

  532.     {

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

  534. 

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

  536. 

  537.         // set-up engine

  538.         if (fIsPatchbay)

  539.         {

  540.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  541.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  542.             pData->options.forceStereo         = false;

  543.             pData->options.preferPluginBridges = false;

  544.             pData->options.preferUiBridges     = false;

  545.             init("Carla-Patchbay");

  546.         }

  547.         else

  548.         {

  549.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  550.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  551.             pData->options.forceStereo         = true;

  552.             pData->options.preferPluginBridges = false;

  553.             pData->options.preferUiBridges     = false;

  554.             init("Carla-Rack");

  555.         }

  556. 

  557.         setCallback(_ui_server_callback, this);

  558.     }

  559. 

  560.     ~CarlaEngineNative() override

  561.     {

  562.         CARLA_ASSERT(! fIsActive);

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

  564. 

  565.         pData->aboutToClose = true;

  566.         fIsRunning = false;

  567. 

  568.         removeAllPlugins();

  569.         runPendingRtEvents();

  570.         close();

  571. 

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

  573.     }

  574. 

  575. protected:

  576.     // -------------------------------------

  577.     // CarlaEngine virtual calls

  578. 

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

  580.     {

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

  582. 

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

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

  585. 

  586.         fIsRunning = true;

  587.         CarlaEngine::init(clientName);

  588.         return true;

  589.     }

  590. 

  591.     bool isRunning() const noexcept override

  592.     {

  593.         return fIsRunning;

  594.     }

  595. 

  596.     bool isOffline() const noexcept override

  597.     {

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

  599.     }

  600. 

  601.     EngineType getType() const noexcept override

  602.     {

  603.         return kEngineTypePlugin;

  604.     }

  605. 

  606.     const char* getCurrentDriverName() const noexcept override

  607.     {

  608.         return "Plugin";

  609.     }

  610. 

  611.     // -------------------------------------------------------------------

  612. 

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

  614.     {

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

  616.         {

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

  618.             return retName;

  619.         }

  620. 

  621.         return nullptr;

  622.     }

  623. 

  624.     // -------------------------------------------------------------------

  625. 

  626.     void bufferSizeChanged(const uint32_t newBufferSize)

  627.     {

  628.         pData->bufferSize = newBufferSize;

  629.         CarlaEngine::bufferSizeChanged(newBufferSize);

  630.     }

  631. 

  632.     void sampleRateChanged(const double newSampleRate)

  633.     {

  634.         pData->sampleRate = newSampleRate;

  635.         CarlaEngine::sampleRateChanged(newSampleRate);

  636.     }

  637. 

  638.     // -------------------------------------------------------------------

  639. 

  640.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  641.     {

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

  643. 

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

  645.         fUiServer.writeMsg(fTmpBuf);

  646. 

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

  648.         fUiServer.writeMsg(fTmpBuf);

  649. 

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

  651.         {

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

  653.             fUiServer.writeAndFixMsg(fTmpBuf);

  654.         }

  655.         else

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

  657. 

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

  659.         {

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

  661.             fUiServer.writeAndFixMsg(fTmpBuf);

  662.         }

  663.         else

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

  665. 

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

  667.         {

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

  669.             fUiServer.writeAndFixMsg(fTmpBuf);

  670.         }

  671.         else

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

  673. 

  674.         plugin->getRealName(fTmpBuf);

  675.         fUiServer.writeAndFixMsg(fTmpBuf);

  676. 

  677.         plugin->getLabel(fTmpBuf);

  678.         fUiServer.writeAndFixMsg(fTmpBuf);

  679. 

  680.         plugin->getMaker(fTmpBuf);

  681.         fUiServer.writeAndFixMsg(fTmpBuf);

  682. 

  683.         plugin->getCopyright(fTmpBuf);

  684.         fUiServer.writeAndFixMsg(fTmpBuf);

  685. 

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

  687.         fUiServer.writeMsg(fTmpBuf);

  688. 

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

  690.         fUiServer.writeMsg(fTmpBuf);

  691.     }

  692. 

  693.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  694.     {

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

  696. 

  697.         uint32_t ins, outs, count;

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

  699.         count = plugin->getParameterCount();

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

  701.         fUiServer.writeMsg(fTmpBuf);

  702. 

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

  704.         {

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

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

  707. 

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

  709.             fUiServer.writeMsg(fTmpBuf);

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

  711.             fUiServer.writeMsg(fTmpBuf);

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

  713.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  715.             fUiServer.writeAndFixMsg(fTmpBuf);

  716. 

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

  718.             fUiServer.writeMsg(fTmpBuf);

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

  720.             fUiServer.writeMsg(fTmpBuf);

  721. 

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

  723.             fUiServer.writeMsg(fTmpBuf);

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

  725.             fUiServer.writeMsg(fTmpBuf);

  726.         }

  727.     }

  728. 

  729.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  730.     {

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

  732. 

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

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

  735.         fUiServer.writeMsg(fTmpBuf);

  736. 

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

  738.         {

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

  740.             fUiServer.writeMsg(fTmpBuf);

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

  742.             fUiServer.writeAndFixMsg(fTmpBuf);

  743.         }

  744. 

  745.         count = plugin->getMidiProgramCount();

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

  747.         fUiServer.writeMsg(fTmpBuf);

  748. 

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

  750.         {

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

  752.             fUiServer.writeMsg(fTmpBuf);

  753. 

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

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

  756.             fUiServer.writeMsg(fTmpBuf);

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

  758.             fUiServer.writeAndFixMsg(fTmpBuf);

  759.         }

  760.     }

  761. 

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

  763.     {

  764.         if (! fIsRunning)

  765.             return;

  766.         if (! fUiServer.isOk())

  767.             return;

  768. 

  769.         CarlaPlugin* plugin;

  770. 

  771.         switch (action)

  772.         {

  773.         case ENGINE_CALLBACK_RELOAD_INFO:

  774.             plugin = getPlugin(pluginId);

  775. 

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

  777.             {

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

  779.                 uiServerSendPluginInfo(plugin);

  780.             }

  781.             break;

  782. 

  783.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  784.             plugin = getPlugin(pluginId);

  785. 

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

  787.             {

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

  789.                 uiServerSendPluginParameters(plugin);

  790.             }

  791.             break;

  792. 

  793.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  794.             plugin = getPlugin(pluginId);

  795. 

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

  797.             {

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

  799.                 uiServerSendPluginPrograms(plugin);

  800.             }

  801.             break;

  802. 

  803.         case ENGINE_CALLBACK_RELOAD_ALL:

  804.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  805.             plugin = getPlugin(pluginId);

  806. 

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

  808.             {

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

  810.                 uiServerSendPluginInfo(plugin);

  811.                 uiServerSendPluginParameters(plugin);

  812.                 uiServerSendPluginPrograms(plugin);

  813.             }

  814.             break;

  815. 

  816.         default:

  817.             break;

  818.         }

  819. 

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

  821.         fUiServer.writeMsg(fTmpBuf);

  822. 

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

  824.         fUiServer.writeMsg(fTmpBuf);

  825. 

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

  827.         fUiServer.writeMsg(fTmpBuf);

  828. 

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

  830.         fUiServer.writeMsg(fTmpBuf);

  831. 

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

  833.         fUiServer.writeMsg(fTmpBuf);

  834. 

  835.         fUiServer.writeAndFixMsg(valueStr);

  836.     }

  837. 

  838.     // -------------------------------------------------------------------

  839.     // Plugin parameter calls

  840. 

  841.     uint32_t getParameterCount() const

  842.     {

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

  844.             return plugin->getParameterCount();

  845. 

  846.         return 0;

  847.     }

  848. 

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

  850.     {

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

  852.         {

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

  854.             {

  855.                 static NativeParameter param;

  856.                 static char strBufName[STR_MAX+1];

  857.                 static char strBufUnit[STR_MAX+1];

  858. 

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

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

  861. 

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

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

  864. 

  865.                 unsigned int hints = 0x0;

  866. 

  867.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  868.                     hints |= ::PARAMETER_IS_BOOLEAN;

  869.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  870.                     hints |= ::PARAMETER_IS_INTEGER;

  871.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  872.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  873.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  874.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  875.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  876.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  877.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  878.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  879.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  880.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  881. 

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

  883.                 {

  884.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  885.                         hints |= ::PARAMETER_IS_ENABLED;

  886.                     if (paramData.type == PARAMETER_OUTPUT)

  887.                         hints |= ::PARAMETER_IS_OUTPUT;

  888.                 }

  889. 

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

  891.                 param.name  = strBufName;

  892.                 param.unit  = strBufUnit;

  893.                 param.ranges.def = paramRanges.def;

  894.                 param.ranges.min = paramRanges.min;

  895.                 param.ranges.max = paramRanges.max;

  896.                 param.ranges.step = paramRanges.step;

  897.                 param.ranges.stepSmall = paramRanges.stepSmall;

  898.                 param.ranges.stepLarge = paramRanges.stepLarge;

  899.                 param.scalePointCount = 0; // TODO

  900.                 param.scalePoints = nullptr;

  901. 

  902.                 return &param;

  903.             }

  904.         }

  905. 

  906.         return nullptr;

  907.     }

  908. 

  909.     float getParameterValue(const uint32_t index) const

  910.     {

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

  912.         {

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

  914.                 return plugin->getParameterValue(index);

  915.         }

  916. 

  917.         return 0.0f;

  918.     }

  919. 

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

  921.     {

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

  923.         {

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

  925.             {

  926.                 static char strBuf[STR_MAX+1];

  927.                 carla_zeroChar(strBuf, STR_MAX+1);

  928. 

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

  930. 

  931.                 return strBuf;

  932.             }

  933.         }

  934. 

  935.         return nullptr;

  936.     }

  937. 

  938.     // -------------------------------------------------------------------

  939.     // Plugin midi-program calls

  940. 

  941.     uint32_t getMidiProgramCount() const

  942.     {

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

  944.            return plugin->getMidiProgramCount();

  945. 

  946.         return 0;

  947.     }

  948. 

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

  950.     {

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

  952.         {

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

  954.             {

  955.                 static NativeMidiProgram midiProg;

  956. 

  957.                 {

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

  959. 

  960.                     midiProg.bank    = midiProgData.bank;

  961.                     midiProg.program = midiProgData.program;

  962.                     midiProg.name    = midiProgData.name;

  963.                 }

  964. 

  965.                 return &midiProg;

  966.             }

  967.         }

  968. 

  969.         return nullptr;

  970.     }

  971. 

  972.     // -------------------------------------------------------------------

  973.     // Plugin state calls

  974. 

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

  976.     {

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

  978.         {

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

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

  981.         }

  982.     }

  983. 

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

  985.     {

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

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

  988.     }

  989. 

  990.     // -------------------------------------------------------------------

  991.     // Plugin process calls

  992. 

  993.     void activate()

  994.     {

  995. #if 0

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

  997.         {

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

  999. 

  1000.             if (plugin == nullptr || ! plugin->isEnabled())

  1001.                 continue;

  1002. 

  1003.             plugin->setActive(true, true, false);

  1004.         }

  1005. #endif

  1006.         fIsActive = true;

  1007.     }

  1008. 

  1009.     void deactivate()

  1010.     {

  1011.         fIsActive = false;

  1012. #if 0

  1013.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1014.         {

  1015.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1016. 

  1017.             if (plugin == nullptr || ! plugin->isEnabled())

  1018.                 continue;

  1019. 

  1020.             plugin->setActive(false, true, false);

  1021.         }

  1022. #endif

  1023. 

  1024.         // just in case

  1025.         runPendingRtEvents();

  1026.     }

  1027. 

  1028.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1029.     {

  1030.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1031.         {

  1032.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1033.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1034. 

  1035.             return runPendingRtEvents();;

  1036.         }

  1037. 

  1038.         // ---------------------------------------------------------------

  1039.         // Time Info

  1040. 

  1041.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1042. 

  1043.         pData->timeInfo.playing = timeInfo->playing;

  1044.         pData->timeInfo.frame   = timeInfo->frame;

  1045.         pData->timeInfo.usecs   = timeInfo->usecs;

  1046.         pData->timeInfo.valid   = 0x0;

  1047. 

  1048.         if (timeInfo->bbt.valid)

  1049.         {

  1050.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1051. 

  1052.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1053.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1054.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

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

  1056. 

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

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

  1059. 

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

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

  1062.         }

  1063. 

  1064.         // ---------------------------------------------------------------

  1065.         // initialize events

  1066. 

  1067.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in,  kMaxEngineEventInternalCount);

  1068.         carla_zeroStruct<EngineEvent>(pData->bufEvents.out, kMaxEngineEventInternalCount);

  1069. 

  1070.         // ---------------------------------------------------------------

  1071.         // events input (before processing)

  1072. 

  1073.         {

  1074.             uint32_t engineEventIndex = 0;

  1075. 

  1076.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1077.             {

  1078.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1079.                 EngineEvent&           engineEvent(pData->bufEvents.in[engineEventIndex++]);

  1080. 

  1081.                 engineEvent.time = midiEvent.time;

  1082.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1083. 

  1084.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1085.                     break;

  1086.             }

  1087.         }

  1088. 

  1089.         if (fIsPatchbay)

  1090.         {

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

  1092.             // create audio buffers

  1093. 

  1094.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1095.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1096.             //uint32_t bufCount[2] = { 2, 2 };

  1097. 

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

  1099.             // process

  1100. 

  1101.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1102.         }

  1103.         else

  1104.         {

  1105.             // -----------------------------------------------------------

  1106.             // create audio buffers

  1107. 

  1108.             float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1109.             float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1110. 

  1111.             // -----------------------------------------------------------

  1112.             // process

  1113. 

  1114.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1115.         }

  1116. 

  1117.         // ---------------------------------------------------------------

  1118.         // events output (after processing)

  1119. 

  1120.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in, kMaxEngineEventInternalCount);

  1121. 

  1122.         {

  1123.             NativeMidiEvent midiEvent;

  1124. 

  1125.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1126.             {

  1127.                 const EngineEvent& engineEvent(pData->bufEvents.out[i]);

  1128. 

  1129.                 if (engineEvent.type == kEngineEventTypeNull)

  1130.                     break;

  1131. 

  1132.                 midiEvent.time = engineEvent.time;

  1133. 

  1134.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1135.                 {

  1136.                     midiEvent.port = 0;

  1137.                     engineEvent.ctrl.dumpToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1138.                 }

  1139.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1140.                 {

  1141.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1142.                         continue;

  1143. 

  1144.                     midiEvent.port = engineEvent.midi.port;

  1145.                     midiEvent.size = engineEvent.midi.size;

  1146. 

  1147.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1148. 

  1149.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1150.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1151.                 }

  1152.                 else

  1153.                 {

  1154.                     carla_stderr("Unknown event type...");

  1155.                     continue;

  1156.                 }

  1157. 

  1158.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1159.             }

  1160.         }

  1161. 

  1162.         runPendingRtEvents();

  1163.     }

  1164. 

  1165.     // -------------------------------------------------------------------

  1166.     // Plugin UI calls

  1167. 

  1168.     void uiShow(const bool show)

  1169.     {

  1170.         if (show)

  1171.         {

  1172.             CarlaString path(pHost->resourceDir);

  1173.             path += "/carla-plugin";

  1174. 

  1175.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.getBuffer());

  1176. 

  1177.             fUiServer.setData(path.getBuffer(), pData->sampleRate, pHost->uiName);

  1178.             fUiServer.start();

  1179. 

  1180.             for (uint i=0; i < pData->curPluginCount; ++i)

  1181.             {

  1182.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1183. 

  1184.                 if (plugin != nullptr && plugin->isEnabled())

  1185.                 {

  1186.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1187.                 }

  1188.             }

  1189.         }

  1190.         else

  1191.         {

  1192.             fUiServer.stop();

  1193.         }

  1194.     }

  1195. 

  1196.     void uiIdle()

  1197.     {

  1198.         CarlaEngine::idle();

  1199.         fUiServer.idle();

  1200. 

  1201.         if (! fUiServer.isOk())

  1202.             return;

  1203. 

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

  1205.         {

  1206.             const EnginePluginData& plugData(pData->plugins[i]);

  1207.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1208. 

  1209.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1210.             fUiServer.writeMsg(fTmpBuf);

  1211. 

  1212.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1213.             fUiServer.writeMsg(fTmpBuf);

  1214. 

  1215.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1216.             {

  1217.                 if (plugin->isParameterOutput(j))

  1218.                     continue;

  1219. 

  1220.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1221.                 fUiServer.writeMsg(fTmpBuf);

  1222.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1223.                 fUiServer.writeMsg(fTmpBuf);

  1224.             }

  1225.         }

  1226. 

  1227.         switch (fUiServer.getAndResetUiState())

  1228.         {

  1229.         case CarlaEngineNativeUI::UiNone:

  1230.         case CarlaEngineNativeUI::UiShow:

  1231.             break;

  1232.         case CarlaEngineNativeUI::UiCrashed:

  1233.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1234.             break;

  1235.         case CarlaEngineNativeUI::UiHide:

  1236.             pHost->ui_closed(pHost->handle);

  1237.             break;

  1238.         }

  1239.     }

  1240. 

  1241.     // -------------------------------------------------------------------

  1242.     // Plugin state calls

  1243. 

  1244.     char* getState() const

  1245.     {

  1246.         QString string;

  1247.         QTextStream out(&string);

  1248.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1249.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1250.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1251. 

  1252.         bool firstPlugin = true;

  1253.         char strBuf[STR_MAX+1];

  1254. 

  1255.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1256.         {

  1257.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1258. 

  1259.             if (plugin != nullptr && plugin->isEnabled())

  1260.             {

  1261.                 if (! firstPlugin)

  1262.                     out << "\n";

  1263. 

  1264.                 strBuf[0] = '\0';

  1265. 

  1266.                 plugin->getRealName(strBuf);

  1267. 

  1268.                 //if (strBuf[0] != '\0')

  1269.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1270. 

  1271.                 QString content;

  1272.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1273. 

  1274.                 out << " <Plugin>\n";

  1275.                 out << content;

  1276.                 out << " </Plugin>\n";

  1277. 

  1278.                 firstPlugin = false;

  1279.             }

  1280.         }

  1281. 

  1282.         out << "</CARLA-PROJECT>\n";

  1283. 

  1284.         return strdup(string.toUtf8().constData());

  1285.     }

  1286. 

  1287.     void setState(const char* const data)

  1288.     {

  1289.         QDomDocument xml;

  1290.         xml.setContent(QString(data));

  1291. 

  1292.         QDomNode xmlNode(xml.documentElement());

  1293. 

  1294.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1295.         {

  1296.             carla_stderr2("Not a valid Carla project");

  1297.             return;

  1298.         }

  1299. 

  1300.         //bool pluginsAdded = false;

  1301. 

  1302.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1303.         {

  1304.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1305.             {

  1306.                 SaveState saveState;

  1307.                 fillSaveStateFromXmlNode(saveState, node);

  1308. 

  1309.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr)

  1310. 

  1311.                 const void* extraStuff = nullptr;

  1312. 

  1313.                 // check if using GIG, SF2 or SFZ 16outs

  1314.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1315. 

  1316.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1317.                 {

  1318.                     if (std::strcmp(saveState.type, "GIG") == 0 || std::strcmp(saveState.type, "SF2") == 0)

  1319.                         extraStuff = "true";

  1320.                 }

  1321. 

  1322.                 // TODO - proper find&load plugins

  1323. 

  1324.                 if (addPlugin(getPluginTypeFromString(saveState.type), saveState.binary, saveState.name, saveState.label, extraStuff))

  1325.                 {

  1326.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1327.                         plugin->loadSaveState(saveState);

  1328.                 }

  1329. 

  1330.                 //pluginsAdded = true;

  1331.             }

  1332.         }

  1333. 

  1334.         //if (pluginsAdded)

  1335.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1336.     }

  1337. 

  1338.     // -------------------------------------------------------------------

  1339. 

  1340. public:

  1341.     #define handlePtr ((CarlaEngineNative*)handle)

  1342. 

  1343.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1344.     {

  1345.         return new CarlaEngineNative(host, false);

  1346.     }

  1347. 

  1348. #ifdef HAVE_JUCE

  1349.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1350.     {

  1351.         return new CarlaEngineNative(host, true);

  1352.     }

  1353. #endif

  1354. 

  1355.     static void _cleanup(NativePluginHandle handle)

  1356.     {

  1357.         delete handlePtr;

  1358.     }

  1359. 

  1360.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1361.     {

  1362.         return handlePtr->getParameterCount();

  1363.     }

  1364. 

  1365.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1366.     {

  1367.         return handlePtr->getParameterInfo(index);

  1368.     }

  1369. 

  1370.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1371.     {

  1372.         return handlePtr->getParameterValue(index);

  1373.     }

  1374. 

  1375.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index, float value)

  1376.     {

  1377.         return handlePtr->getParameterText(index, value);

  1378.     }

  1379. 

  1380.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1381.     {

  1382.         return handlePtr->getMidiProgramCount();

  1383.     }

  1384. 

  1385.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1386.     {

  1387.         return handlePtr->getMidiProgramInfo(index);

  1388.     }

  1389. 

  1390.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1391.     {

  1392.         handlePtr->setParameterValue(index, value);

  1393.     }

  1394. 

  1395.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1396.     {

  1397.         handlePtr->setMidiProgram(channel, bank, program);

  1398.     }

  1399. 

  1400.     static void _ui_show(NativePluginHandle handle, bool show)

  1401.     {

  1402.         handlePtr->uiShow(show);

  1403.     }

  1404. 

  1405.     static void _ui_idle(NativePluginHandle handle)

  1406.     {

  1407.         handlePtr->uiIdle();

  1408.     }

  1409. 

  1410.     static void _activate(NativePluginHandle handle)

  1411.     {

  1412.         handlePtr->activate();

  1413.     }

  1414. 

  1415.     static void _deactivate(NativePluginHandle handle)

  1416.     {

  1417.         handlePtr->deactivate();

  1418.     }

  1419. 

  1420.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1421.     {

  1422.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1423.     }

  1424. 

  1425.     static char* _get_state(NativePluginHandle handle)

  1426.     {

  1427.         return handlePtr->getState();

  1428.     }

  1429. 

  1430.     static void _set_state(NativePluginHandle handle, const char* data)

  1431.     {

  1432.         handlePtr->setState(data);

  1433.     }

  1434. 

  1435.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1436.     {

  1437.         switch(opcode)

  1438.         {

  1439.         case PLUGIN_OPCODE_NULL:

  1440.             return 0;

  1441.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1442.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1443.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1444.             return 0;

  1445.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1446.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1447.             return 0;

  1448.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1449.             handlePtr->offlineModeChanged(value != 0);

  1450.             return 0;

  1451.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1452.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1453.             return 0;

  1454.         }

  1455. 

  1456.         return 0;

  1457. 

  1458.         // unused

  1459.         (void)index;

  1460.         (void)ptr;

  1461.     }

  1462. 

  1463.     // -------------------------------------------------------------------

  1464. 

  1465.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1466.     {

  1467.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1468.     }

  1469. 

  1470.     // -------------------------------------------------------------------

  1471. 

  1472.     #undef handlePtr

  1473. 

  1474. private:

  1475.     const NativeHostDescriptor* const pHost;

  1476. 

  1477.     const bool fIsPatchbay; // rack if false

  1478.     bool fIsActive, fIsRunning;

  1479.     CarlaEngineNativeUI fUiServer;

  1480. 

  1481.     char fTmpBuf[STR_MAX+1];

  1482. 

  1483.     CarlaPlugin* _getFirstPlugin() const noexcept

  1484.     {

  1485.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1486.             return nullptr;

  1487. 

  1488.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1489. 

  1490.         if (plugin == nullptr || ! plugin->isEnabled())

  1491.             return nullptr;

  1492. 

  1493.         return pData->plugins[0].plugin;

  1494.     }

  1495. 

  1496.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1497. };

  1498. 

  1499. // -----------------------------------------------------------------------

  1500. 

  1501. static const NativePluginDescriptor carlaRackDesc = {

  1502.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1503.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1504.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1505.     /* audioIns  */ 2,

  1506.     /* audioOuts */ 2,

  1507.     /* midiIns   */ 1,

  1508.     /* midiOuts  */ 1,

  1509.     /* paramIns  */ 0,

  1510.     /* paramOuts */ 0,

  1511.     /* name      */ "Carla-Rack",

  1512.     /* label     */ "carla-rack",

  1513.     /* maker     */ "falkTX",

  1514.     /* copyright */ "GNU GPL v2+",

  1515.     CarlaEngineNative::_instantiateRack,

  1516.     CarlaEngineNative::_cleanup,

  1517.     CarlaEngineNative::_get_parameter_count,

  1518.     CarlaEngineNative::_get_parameter_info,

  1519.     CarlaEngineNative::_get_parameter_value,

  1520.     CarlaEngineNative::_get_parameter_text,

  1521.     CarlaEngineNative::_get_midi_program_count,

  1522.     CarlaEngineNative::_get_midi_program_info,

  1523.     CarlaEngineNative::_set_parameter_value,

  1524.     CarlaEngineNative::_set_midi_program,

  1525.     /* _set_custom_data        */ nullptr,

  1526.     CarlaEngineNative::_ui_show,

  1527.     CarlaEngineNative::_ui_idle,

  1528.     /* _ui_set_parameter_value */ nullptr,

  1529.     /* _ui_set_midi_program    */ nullptr,

  1530.     /* _ui_set_custom_data     */ nullptr,

  1531.     CarlaEngineNative::_activate,

  1532.     CarlaEngineNative::_deactivate,

  1533.     CarlaEngineNative::_process,

  1534.     CarlaEngineNative::_get_state,

  1535.     CarlaEngineNative::_set_state,

  1536.     CarlaEngineNative::_dispatcher

  1537. };

  1538. 

  1539. #ifdef HAVE_JUCE

  1540. static const NativePluginDescriptor carlaPatchbayDesc = {

  1541.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1542.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1543.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1544.     /* audioIns  */ 2,

  1545.     /* audioOuts */ 2,

  1546.     /* midiIns   */ 1,

  1547.     /* midiOuts  */ 1,

  1548.     /* paramIns  */ 0,

  1549.     /* paramOuts */ 0,

  1550.     /* name      */ "Carla-Patchbay",

  1551.     /* label     */ "carla-patchbay",

  1552.     /* maker     */ "falkTX",

  1553.     /* copyright */ "GNU GPL v2+",

  1554.     CarlaEngineNative::_instantiatePatchbay,

  1555.     CarlaEngineNative::_cleanup,

  1556.     CarlaEngineNative::_get_parameter_count,

  1557.     CarlaEngineNative::_get_parameter_info,

  1558.     CarlaEngineNative::_get_parameter_value,

  1559.     CarlaEngineNative::_get_parameter_text,

  1560.     CarlaEngineNative::_get_midi_program_count,

  1561.     CarlaEngineNative::_get_midi_program_info,

  1562.     CarlaEngineNative::_set_parameter_value,

  1563.     CarlaEngineNative::_set_midi_program,

  1564.     /* _set_custom_data        */ nullptr,

  1565.     CarlaEngineNative::_ui_show,

  1566.     CarlaEngineNative::_ui_idle,

  1567.     /* _ui_set_parameter_value */ nullptr,

  1568.     /* _ui_set_midi_program    */ nullptr,

  1569.     /* _ui_set_custom_data     */ nullptr,

  1570.     CarlaEngineNative::_activate,

  1571.     CarlaEngineNative::_deactivate,

  1572.     CarlaEngineNative::_process,

  1573.     CarlaEngineNative::_get_state,

  1574.     CarlaEngineNative::_set_state,

  1575.     CarlaEngineNative::_dispatcher

  1576. };

  1577. #endif

  1578. 

  1579. // -----------------------------------------------------------------------

  1580. 

  1581. CARLA_BACKEND_END_NAMESPACE

  1582. 

  1583. CARLA_EXPORT

  1584. void carla_register_native_plugin_carla()

  1585. {

  1586.     CARLA_BACKEND_USE_NAMESPACE

  1587.     carla_register_native_plugin(&carlaRackDesc);

  1588. #ifdef HAVE_JUCE

  1589.     carla_register_native_plugin(&carlaPatchbayDesc);

  1590. #endif

  1591. }

  1592. 

  1593. // -----------------------------------------------------------------------

  1594. // Extra stuff for linking purposes

  1595. 

  1596. #ifdef CARLA_PLUGIN_EXPORT

  1597. 

  1598. CARLA_BACKEND_START_NAMESPACE

  1599. 

  1600. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1601. 

  1602. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1603. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1604. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

  1605. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1606. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1607. 

  1608. # ifdef HAVE_JUCE

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

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

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

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

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

  1614. # endif

  1615. 

  1616. CARLA_BACKEND_END_NAMESPACE

  1617. 

  1618. #include "CarlaStateUtils.cpp"

  1619. 

  1620. #endif

  1621. 

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