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

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  1. /*

  2.  * Carla Plugin Host

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

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaDefines.h"

  19. 

  20. #ifdef BUILD_BRIDGE

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

  22. #endif

  23. #ifdef CARLA_OS_WIN

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

  25. #endif

  26. 

  27. #include "CarlaEngineInternal.hpp"

  28. #include "CarlaPlugin.hpp"

  29. 

  30. #include "CarlaBackendUtils.hpp"

  31. #include "CarlaMathUtils.hpp"

  32. #include "CarlaPipeUtils.hpp"

  33. #include "CarlaStateUtils.hpp"

  34. 

  35. #include "CarlaNative.hpp"

  36. 

  37. #include <QtCore/QTextStream>

  38. #include <QtXml/QDomNode>

  39. 

  40. CARLA_BACKEND_START_NAMESPACE

  41. 

  42. #if 0

  43. } // Fix editor indentation

  44. #endif

  45. 

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

  47. 

  48. class CarlaEngineNativeUI : public 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.         bool ok = true;

  95. 

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

  97.         {

  98.             waitChildClose();

  99.             fUiState = UiHide;

  100.         }

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

  102.         {

  103.             uint32_t option;

  104.             int32_t value;

  105.             const char* valueStr;

  106. 

  107.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option),);

  108.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(value),);

  109.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(valueStr),);

  110. 

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

  112. 

  113.             delete[] valueStr;

  114.         }

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

  116.         {

  117.             const char* filename;

  118. 

  119.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  120. 

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

  122. 

  123.             delete[] filename;

  124.         }

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

  126.         {

  127.             const char* filename;

  128. 

  129.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  130. 

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

  132. 

  133.             delete[] filename;

  134.         }

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

  136.         {

  137.             const char* filename;

  138. 

  139.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  140. 

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

  142. 

  143.             delete[] filename;

  144.         }

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

  146.         {

  147.             int32_t portA, portB;

  148. 

  149.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portA),);

  150.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(portB),);

  151. 

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

  153.         }

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

  155.         {

  156.             uint32_t connectionId;

  157. 

  158.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(connectionId),);

  159. 

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

  161.         }

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

  163.         {

  164.             ok = fEngine->patchbayRefresh();

  165.         }

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

  167.         {

  168.             fEngine->transportPlay();

  169.         }

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

  171.         {

  172.             fEngine->transportPause();

  173.         }

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

  175.         {

  176.             uint64_t frame;

  177. 

  178.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsULong(frame),);

  179. 

  180.             fEngine->transportRelocate(frame);

  181.         }

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

  183.         {

  184.             uint32_t btype, ptype;

  185.             const char* filename = nullptr;

  186.             const char* name;

  187.             const char* label;

  188.             int64_t uniqueId;

  189. 

  190.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(btype),);

  191.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(ptype),);

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

  193.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(name),);

  194.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(label),);

  195.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsLong(uniqueId),);

  196. 

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

  198.             {

  199.                 delete[] filename;

  200.                 filename = nullptr;

  201.             }

  202. 

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

  204.             {

  205.                 delete[] name;

  206.                 name = nullptr;

  207.             }

  208. 

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

  210. 

  211.             if (filename != nullptr)

  212.                 delete[] filename;

  213.             if (name != nullptr)

  214.                 delete[] name;

  215.             delete[] label;

  216.         }

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

  218.         {

  219.             uint32_t pluginId;

  220. 

  221.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  222. 

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

  224.         }

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

  226.         {

  227.             ok = fEngine->removeAllPlugins();

  228.         }

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

  230.         {

  231.             uint32_t pluginId;

  232.             const char* newName;

  233. 

  234.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  235.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(newName),);

  236. 

  237.             // TODO

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

  239. 

  240.             delete[] newName;

  241.         }

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

  243.         {

  244.             uint32_t pluginId;

  245. 

  246.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  247. 

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

  249.         }

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

  251.         {

  252.             uint32_t pluginId;

  253. 

  254.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  255. 

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

  257.         }

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

  259.         {

  260.             uint32_t pluginIdA, pluginIdB;

  261. 

  262.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdA),);

  263.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdB),);

  264. 

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

  266.         }

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

  268.         {

  269.             uint32_t pluginId;

  270.             const char* filename;

  271. 

  272.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  273.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  274. 

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

  276.                 plugin->loadStateFromFile(filename);

  277. 

  278.             delete[] filename;

  279.         }

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

  281.         {

  282.             uint32_t pluginId;

  283.             const char* filename;

  284. 

  285.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  286.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename),);

  287. 

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

  289.                 plugin->saveStateToFile(filename);

  290. 

  291.             delete[] filename;

  292.         }

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

  294.         {

  295.             uint32_t pluginId, option;

  296.             bool yesNo;

  297. 

  298.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  299.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option),);

  300.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo),);

  301. 

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

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

  304.         }

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

  306.         {

  307.             uint32_t pluginId;

  308.             bool onOff;

  309. 

  310.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  311.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(onOff),);

  312. 

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

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

  315.         }

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

  317.         {

  318.             uint32_t pluginId;

  319.             float value;

  320. 

  321.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  322.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  323. 

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

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

  326.         }

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

  328.         {

  329.             uint32_t pluginId;

  330.             float value;

  331. 

  332.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  333.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  334. 

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

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

  337.         }

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

  339.         {

  340.             uint32_t pluginId;

  341.             float value;

  342. 

  343.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  344.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  345. 

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

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

  348.         }

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

  350.         {

  351.             uint32_t pluginId;

  352.             float value;

  353. 

  354.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  355.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  356. 

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

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

  359.         }

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

  361.         {

  362.             uint32_t pluginId;

  363.             float value;

  364. 

  365.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  366.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  367. 

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

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

  370.         }

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

  372.         {

  373.             uint32_t pluginId;

  374.             int32_t channel;

  375. 

  376.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  377.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel),);

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

  379. 

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

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

  382.         }

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

  384.         {

  385.             uint32_t pluginId, parameterId;

  386.             float value;

  387. 

  388.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  389.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId),);

  390.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value),);

  391. 

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

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

  394.         }

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

  396.         {

  397.             uint32_t pluginId, parameterId, channel;

  398. 

  399.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  400.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId),);

  401.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel),);

  402.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  403. 

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

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

  406.         }

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

  408.         {

  409.             uint32_t pluginId, parameterId;

  410.             int32_t cc;

  411. 

  412.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  413.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId),);

  414.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(cc),);

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

  416. 

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

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

  419.         }

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

  421.         {

  422.             uint32_t pluginId;

  423.             int32_t index;

  424. 

  425.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  426.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index),);

  427. 

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

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

  430.         }

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

  432.         {

  433.             uint32_t pluginId;

  434.             int32_t index;

  435. 

  436.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  437.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index),);

  438. 

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

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

  441.         }

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

  443.         {

  444.             uint32_t pluginId;

  445.             const char* type;

  446.             const char* key;

  447.             const char* value;

  448. 

  449.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  450.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(type),);

  451.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(key),);

  452.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(value),);

  453. 

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

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

  456.         }

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

  458.         {

  459.             uint32_t pluginId;

  460.             const char* cdata;

  461. 

  462.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  463.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(cdata),);

  464. 

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

  466.                 plugin->setChunkData(cdata);

  467.         }

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

  469.         {

  470.             uint32_t pluginId;

  471. 

  472.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  473. 

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

  475.                 plugin->prepareForSave();

  476.         }

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

  478.         {

  479.             uint32_t pluginId, channel, note, velocity;

  480. 

  481.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId),);

  482.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel),);

  483.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(note),);

  484.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(velocity),);

  485.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  486.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE,);

  487.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE,);

  488. 

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

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

  491.         }

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

  493.         {

  494.             uint32_t pluginId;

  495.             bool yesNo;

  496. 

  497.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(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.         if (! ok)

  509.         {

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

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

  512.         }

  513.     }

  514. 

  515. private:

  516.     CarlaEngine* const fEngine;

  517. 

  518.     CarlaString fFilename;

  519.     CarlaString fSampleRate;

  520.     CarlaString fUiTitle;

  521.     UiState     fUiState;

  522. 

  523.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  524. };

  525. 

  526. // -----------------------------------------------------------------------

  527. 

  528. class CarlaEngineNative : public CarlaEngine

  529. {

  530. public:

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

  532.         : CarlaEngine(),

  533.           pHost(host),

  534.           fIsPatchbay(isPatchbay),

  535.           fIsActive(false),

  536.           fIsRunning(false),

  537.           fUiServer(this)

  538.     {

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

  540. 

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

  542. 

  543.         // set-up engine

  544.         if (fIsPatchbay)

  545.         {

  546.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  547.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  548.             pData->options.forceStereo         = false;

  549.             pData->options.preferPluginBridges = false;

  550.             pData->options.preferUiBridges     = false;

  551.             init("Carla-Patchbay");

  552.         }

  553.         else

  554.         {

  555.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  556.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  557.             pData->options.forceStereo         = true;

  558.             pData->options.preferPluginBridges = false;

  559.             pData->options.preferUiBridges     = false;

  560.             init("Carla-Rack");

  561.         }

  562. 

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

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

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

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

  567. 

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

  569. 

  570.         // FIXME

  571.         pData->options.binaryDir = carla_strdup("/usr/lib/carla");

  572. 

  573.         setCallback(_ui_server_callback, this);

  574.     }

  575. 

  576.     ~CarlaEngineNative() override

  577.     {

  578.         CARLA_ASSERT(! fIsActive);

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

  580. 

  581.         pData->aboutToClose = true;

  582.         fIsRunning = false;

  583. 

  584.         removeAllPlugins();

  585.         runPendingRtEvents();

  586.         close();

  587. 

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

  589.     }

  590. 

  591. protected:

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

  593.     // CarlaEngine virtual calls

  594. 

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

  596.     {

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

  598. 

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

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

  601. 

  602.         fIsRunning = true;

  603.         CarlaEngine::init(clientName);

  604.         return true;

  605.     }

  606. 

  607.     bool isRunning() const noexcept override

  608.     {

  609.         return fIsRunning;

  610.     }

  611. 

  612.     bool isOffline() const noexcept override

  613.     {

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

  615.     }

  616. 

  617.     EngineType getType() const noexcept override

  618.     {

  619.         return kEngineTypePlugin;

  620.     }

  621. 

  622.     const char* getCurrentDriverName() const noexcept override

  623.     {

  624.         return "Plugin";

  625.     }

  626. 

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

  628. 

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

  630.     {

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

  632.         {

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

  634.             return retName;

  635.         }

  636. 

  637.         return nullptr;

  638.     }

  639. 

  640.     // -------------------------------------------------------------------

  641. 

  642.     void bufferSizeChanged(const uint32_t newBufferSize)

  643.     {

  644.         pData->bufferSize = newBufferSize;

  645.         CarlaEngine::bufferSizeChanged(newBufferSize);

  646.     }

  647. 

  648.     void sampleRateChanged(const double newSampleRate)

  649.     {

  650.         pData->sampleRate = newSampleRate;

  651.         CarlaEngine::sampleRateChanged(newSampleRate);

  652.     }

  653. 

  654.     // -------------------------------------------------------------------

  655. 

  656.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  657.     {

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

  659. 

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

  661.         fUiServer.writeMsg(fTmpBuf);

  662. 

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

  664.         fUiServer.writeMsg(fTmpBuf);

  665. 

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

  667.         {

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

  669.             fUiServer.writeAndFixMsg(fTmpBuf);

  670.         }

  671.         else

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

  673. 

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

  675.         {

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

  677.             fUiServer.writeAndFixMsg(fTmpBuf);

  678.         }

  679.         else

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

  681. 

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

  683.         {

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

  685.             fUiServer.writeAndFixMsg(fTmpBuf);

  686.         }

  687.         else

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

  689. 

  690.         plugin->getRealName(fTmpBuf);

  691.         fUiServer.writeAndFixMsg(fTmpBuf);

  692. 

  693.         plugin->getLabel(fTmpBuf);

  694.         fUiServer.writeAndFixMsg(fTmpBuf);

  695. 

  696.         plugin->getMaker(fTmpBuf);

  697.         fUiServer.writeAndFixMsg(fTmpBuf);

  698. 

  699.         plugin->getCopyright(fTmpBuf);

  700.         fUiServer.writeAndFixMsg(fTmpBuf);

  701. 

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

  703.         fUiServer.writeMsg(fTmpBuf);

  704. 

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

  706.         fUiServer.writeMsg(fTmpBuf);

  707.     }

  708. 

  709.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  710.     {

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

  712. 

  713.         uint32_t ins, outs, count;

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

  715.         count = plugin->getParameterCount();

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

  717.         fUiServer.writeMsg(fTmpBuf);

  718. 

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

  720.         {

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

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

  723. 

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

  725.             fUiServer.writeMsg(fTmpBuf);

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

  727.             fUiServer.writeMsg(fTmpBuf);

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

  729.             fUiServer.writeAndFixMsg(fTmpBuf);

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

  731.             fUiServer.writeAndFixMsg(fTmpBuf);

  732. 

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

  734.             fUiServer.writeMsg(fTmpBuf);

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

  736.             fUiServer.writeMsg(fTmpBuf);

  737. 

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

  739.             fUiServer.writeMsg(fTmpBuf);

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

  741.             fUiServer.writeMsg(fTmpBuf);

  742.         }

  743.     }

  744. 

  745.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  746.     {

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

  748. 

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

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

  751.         fUiServer.writeMsg(fTmpBuf);

  752. 

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

  754.         {

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

  756.             fUiServer.writeMsg(fTmpBuf);

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

  758.             fUiServer.writeAndFixMsg(fTmpBuf);

  759.         }

  760. 

  761.         count = plugin->getMidiProgramCount();

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

  763.         fUiServer.writeMsg(fTmpBuf);

  764. 

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

  766.         {

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

  768.             fUiServer.writeMsg(fTmpBuf);

  769. 

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

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

  772.             fUiServer.writeMsg(fTmpBuf);

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

  774.             fUiServer.writeAndFixMsg(fTmpBuf);

  775.         }

  776.     }

  777. 

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

  779.     {

  780.         if (! fIsRunning)

  781.             return;

  782.         if (! fUiServer.isOk())

  783.             return;

  784. 

  785.         CarlaPlugin* plugin;

  786. 

  787.         switch (action)

  788.         {

  789.         case ENGINE_CALLBACK_RELOAD_INFO:

  790.             plugin = getPlugin(pluginId);

  791. 

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

  793.             {

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

  795.                 uiServerSendPluginInfo(plugin);

  796.             }

  797.             break;

  798. 

  799.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  800.             plugin = getPlugin(pluginId);

  801. 

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

  803.             {

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

  805.                 uiServerSendPluginParameters(plugin);

  806.             }

  807.             break;

  808. 

  809.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  810.             plugin = getPlugin(pluginId);

  811. 

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

  813.             {

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

  815.                 uiServerSendPluginPrograms(plugin);

  816.             }

  817.             break;

  818. 

  819.         case ENGINE_CALLBACK_RELOAD_ALL:

  820.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  821.             plugin = getPlugin(pluginId);

  822. 

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

  824.             {

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

  826.                 uiServerSendPluginInfo(plugin);

  827.                 uiServerSendPluginParameters(plugin);

  828.                 uiServerSendPluginPrograms(plugin);

  829.             }

  830.             break;

  831. 

  832.         default:

  833.             break;

  834.         }

  835. 

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

  837.         fUiServer.writeMsg(fTmpBuf);

  838. 

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

  840.         fUiServer.writeMsg(fTmpBuf);

  841. 

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

  843.         fUiServer.writeMsg(fTmpBuf);

  844. 

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

  846.         fUiServer.writeMsg(fTmpBuf);

  847. 

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

  849.         fUiServer.writeMsg(fTmpBuf);

  850. 

  851.         fUiServer.writeAndFixMsg(valueStr);

  852.     }

  853. 

  854.     // -------------------------------------------------------------------

  855.     // Plugin parameter calls

  856. 

  857.     uint32_t getParameterCount() const

  858.     {

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

  860.             return plugin->getParameterCount();

  861. 

  862.         return 0;

  863.     }

  864. 

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

  866.     {

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

  868.         {

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

  870.             {

  871.                 static NativeParameter param;

  872.                 static char strBufName[STR_MAX+1];

  873.                 static char strBufUnit[STR_MAX+1];

  874. 

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

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

  877. 

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

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

  880. 

  881.                 unsigned int hints = 0x0;

  882. 

  883.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  884.                     hints |= ::PARAMETER_IS_BOOLEAN;

  885.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  886.                     hints |= ::PARAMETER_IS_INTEGER;

  887.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  888.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  889.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  890.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  891.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  892.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  893.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  894.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  895.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  896.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  897. 

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

  899.                 {

  900.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  901.                         hints |= ::PARAMETER_IS_ENABLED;

  902.                     if (paramData.type == PARAMETER_OUTPUT)

  903.                         hints |= ::PARAMETER_IS_OUTPUT;

  904.                 }

  905. 

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

  907.                 param.name  = strBufName;

  908.                 param.unit  = strBufUnit;

  909.                 param.ranges.def = paramRanges.def;

  910.                 param.ranges.min = paramRanges.min;

  911.                 param.ranges.max = paramRanges.max;

  912.                 param.ranges.step = paramRanges.step;

  913.                 param.ranges.stepSmall = paramRanges.stepSmall;

  914.                 param.ranges.stepLarge = paramRanges.stepLarge;

  915.                 param.scalePointCount = 0; // TODO

  916.                 param.scalePoints = nullptr;

  917. 

  918.                 return &param;

  919.             }

  920.         }

  921. 

  922.         return nullptr;

  923.     }

  924. 

  925.     float getParameterValue(const uint32_t index) const

  926.     {

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

  928.         {

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

  930.                 return plugin->getParameterValue(index);

  931.         }

  932. 

  933.         return 0.0f;

  934.     }

  935. 

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

  937.     {

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

  939.         {

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

  941.             {

  942.                 static char strBuf[STR_MAX+1];

  943.                 carla_zeroChar(strBuf, STR_MAX+1);

  944. 

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

  946. 

  947.                 return strBuf;

  948.             }

  949.         }

  950. 

  951.         return nullptr;

  952.     }

  953. 

  954.     // -------------------------------------------------------------------

  955.     // Plugin midi-program calls

  956. 

  957.     uint32_t getMidiProgramCount() const

  958.     {

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

  960.             return plugin->getMidiProgramCount();

  961. 

  962.         return 0;

  963.     }

  964. 

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

  966.     {

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

  968.         {

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

  970.             {

  971.                 static NativeMidiProgram midiProg;

  972. 

  973.                 {

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

  975. 

  976.                     midiProg.bank    = midiProgData.bank;

  977.                     midiProg.program = midiProgData.program;

  978.                     midiProg.name    = midiProgData.name;

  979.                 }

  980. 

  981.                 return &midiProg;

  982.             }

  983.         }

  984. 

  985.         return nullptr;

  986.     }

  987. 

  988.     // -------------------------------------------------------------------

  989.     // Plugin state calls

  990. 

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

  992.     {

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

  994.         {

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

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

  997.         }

  998.     }

  999. 

  1000.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1001.     {

  1002.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1003.             plugin->setMidiProgramById(bank, program, false, false, false);

  1004.     }

  1005. 

  1006.     // -------------------------------------------------------------------

  1007.     // Plugin process calls

  1008. 

  1009.     void activate()

  1010.     {

  1011. #if 0

  1012.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1013.         {

  1014.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1015. 

  1016.             if (plugin == nullptr || ! plugin->isEnabled())

  1017.                 continue;

  1018. 

  1019.             plugin->setActive(true, true, false);

  1020.         }

  1021. #endif

  1022.         fIsActive = true;

  1023.     }

  1024. 

  1025.     void deactivate()

  1026.     {

  1027.         fIsActive = false;

  1028. #if 0

  1029.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1030.         {

  1031.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1032. 

  1033.             if (plugin == nullptr || ! plugin->isEnabled())

  1034.                 continue;

  1035. 

  1036.             plugin->setActive(false, true, false);

  1037.         }

  1038. #endif

  1039. 

  1040.         // just in case

  1041.         runPendingRtEvents();

  1042.     }

  1043. 

  1044.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1045.     {

  1046.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1047.         {

  1048.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1049.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1050. 

  1051.             return runPendingRtEvents();;

  1052.         }

  1053. 

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

  1055.         // Time Info

  1056. 

  1057.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1058. 

  1059.         pData->timeInfo.playing = timeInfo->playing;

  1060.         pData->timeInfo.frame   = timeInfo->frame;

  1061.         pData->timeInfo.usecs   = timeInfo->usecs;

  1062.         pData->timeInfo.valid   = 0x0;

  1063. 

  1064.         if (timeInfo->bbt.valid)

  1065.         {

  1066.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1067. 

  1068.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1069.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1070.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1071.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1072. 

  1073.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1074.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1075. 

  1076.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1077.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1078.         }

  1079. 

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

  1081.         // initialize events

  1082. 

  1083.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in,  kMaxEngineEventInternalCount);

  1084.         carla_zeroStruct<EngineEvent>(pData->bufEvents.out, kMaxEngineEventInternalCount);

  1085. 

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

  1087.         // events input (before processing)

  1088. 

  1089.         {

  1090.             uint32_t engineEventIndex = 0;

  1091. 

  1092.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1093.             {

  1094.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1095.                 EngineEvent&           engineEvent(pData->bufEvents.in[engineEventIndex++]);

  1096. 

  1097.                 engineEvent.time = midiEvent.time;

  1098.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1099. 

  1100.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1101.                     break;

  1102.             }

  1103.         }

  1104. 

  1105.         if (fIsPatchbay)

  1106.         {

  1107.             // -----------------------------------------------------------

  1108.             // create audio buffers

  1109. 

  1110.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1111.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1112.             //uint32_t bufCount[2] = { 2, 2 };

  1113. 

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

  1115.             // process

  1116. 

  1117.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1118.         }

  1119.         else

  1120.         {

  1121.             // -----------------------------------------------------------

  1122.             // create audio buffers

  1123. 

  1124.             float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1125.             float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1126. 

  1127.             // -----------------------------------------------------------

  1128.             // process

  1129. 

  1130.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1131.         }

  1132. 

  1133.         // ---------------------------------------------------------------

  1134.         // events output (after processing)

  1135. 

  1136.         carla_zeroStruct<EngineEvent>(pData->bufEvents.in, kMaxEngineEventInternalCount);

  1137. 

  1138.         {

  1139.             NativeMidiEvent midiEvent;

  1140. 

  1141.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1142.             {

  1143.                 const EngineEvent& engineEvent(pData->bufEvents.out[i]);

  1144. 

  1145.                 if (engineEvent.type == kEngineEventTypeNull)

  1146.                     break;

  1147. 

  1148.                 midiEvent.time = engineEvent.time;

  1149. 

  1150.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1151.                 {

  1152.                     midiEvent.port = 0;

  1153.                     engineEvent.ctrl.dumpToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1154.                 }

  1155.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1156.                 {

  1157.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1158.                         continue;

  1159. 

  1160.                     midiEvent.port = engineEvent.midi.port;

  1161.                     midiEvent.size = engineEvent.midi.size;

  1162. 

  1163.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1164. 

  1165.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1166.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1167.                 }

  1168.                 else

  1169.                 {

  1170.                     carla_stderr("Unknown event type...");

  1171.                     continue;

  1172.                 }

  1173. 

  1174.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1175.             }

  1176.         }

  1177. 

  1178.         runPendingRtEvents();

  1179.     }

  1180. 

  1181.     // -------------------------------------------------------------------

  1182.     // Plugin UI calls

  1183. 

  1184.     void uiShow(const bool show)

  1185.     {

  1186.         if (show)

  1187.         {

  1188.             CarlaString path(pHost->resourceDir);

  1189.             path += "/carla-plugin";

  1190. 

  1191.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.getBuffer());

  1192. 

  1193.             fUiServer.setData(path.getBuffer(), pData->sampleRate, pHost->uiName);

  1194.             fUiServer.start();

  1195. 

  1196.             for (uint i=0; i < pData->curPluginCount; ++i)

  1197.             {

  1198.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1199. 

  1200.                 if (plugin != nullptr && plugin->isEnabled())

  1201.                 {

  1202.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1203.                 }

  1204.             }

  1205.         }

  1206.         else

  1207.         {

  1208.             fUiServer.stop();

  1209.         }

  1210.     }

  1211. 

  1212.     void uiIdle()

  1213.     {

  1214.         CarlaEngine::idle();

  1215.         fUiServer.idle();

  1216. 

  1217.         if (! fUiServer.isOk())

  1218.             return;

  1219. 

  1220.         for (uint i=0; i < pData->curPluginCount; ++i)

  1221.         {

  1222.             const EnginePluginData& plugData(pData->plugins[i]);

  1223.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1224. 

  1225.             std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1226.             fUiServer.writeMsg(fTmpBuf);

  1227. 

  1228.             std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1229.             fUiServer.writeMsg(fTmpBuf);

  1230. 

  1231.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1232.             {

  1233.                 if (plugin->isParameterOutput(j))

  1234.                     continue;

  1235. 

  1236.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1237.                 fUiServer.writeMsg(fTmpBuf);

  1238.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1239.                 fUiServer.writeMsg(fTmpBuf);

  1240.             }

  1241.         }

  1242. 

  1243.         switch (fUiServer.getAndResetUiState())

  1244.         {

  1245.         case CarlaEngineNativeUI::UiNone:

  1246.         case CarlaEngineNativeUI::UiShow:

  1247.             break;

  1248.         case CarlaEngineNativeUI::UiCrashed:

  1249.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1250.             break;

  1251.         case CarlaEngineNativeUI::UiHide:

  1252.             pHost->ui_closed(pHost->handle);

  1253.             break;

  1254.         }

  1255.     }

  1256. 

  1257.     // -------------------------------------------------------------------

  1258.     // Plugin state calls

  1259. 

  1260.     char* getState() const

  1261.     {

  1262.         QString string;

  1263.         QTextStream out(&string);

  1264.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1265.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1266.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1267. 

  1268.         bool firstPlugin = true;

  1269.         char strBuf[STR_MAX+1];

  1270. 

  1271.         for (unsigned int i=0; i < pData->curPluginCount; ++i)

  1272.         {

  1273.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1274. 

  1275.             if (plugin != nullptr && plugin->isEnabled())

  1276.             {

  1277.                 if (! firstPlugin)

  1278.                     out << "\n";

  1279. 

  1280.                 strBuf[0] = '\0';

  1281. 

  1282.                 plugin->getRealName(strBuf);

  1283. 

  1284.                 //if (strBuf[0] != '\0')

  1285.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1286. 

  1287.                 QString content;

  1288.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1289. 

  1290.                 out << " <Plugin>\n";

  1291.                 out << content;

  1292.                 out << " </Plugin>\n";

  1293. 

  1294.                 firstPlugin = false;

  1295.             }

  1296.         }

  1297. 

  1298.         out << "</CARLA-PROJECT>\n";

  1299. 

  1300.         return strdup(string.toUtf8().constData());

  1301.     }

  1302. 

  1303.     void setState(const char* const data)

  1304.     {

  1305.         QDomDocument xml;

  1306.         xml.setContent(QString(data));

  1307. 

  1308.         QDomNode xmlNode(xml.documentElement());

  1309. 

  1310.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1311.         {

  1312.             carla_stderr2("Not a valid Carla project");

  1313.             return;

  1314.         }

  1315. 

  1316.         //bool pluginsAdded = false;

  1317. 

  1318.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1319.         {

  1320.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1321.             {

  1322.                 SaveState saveState;

  1323.                 fillSaveStateFromXmlNode(saveState, node);

  1324. 

  1325.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr);

  1326. 

  1327.                 const void* extraStuff = nullptr;

  1328. 

  1329.                 // check if using GIG, SF2 or SFZ 16outs

  1330.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1331. 

  1332.                 const PluginType ptype(getPluginTypeFromString(saveState.type));

  1333. 

  1334.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1335.                 {

  1336.                     if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)

  1337.                         extraStuff = "true";

  1338.                 }

  1339. 

  1340.                 // TODO - proper find&load plugins

  1341. 

  1342.                 if (addPlugin(ptype, saveState.binary, saveState.name, saveState.label, saveState.uniqueId, extraStuff))

  1343.                 {

  1344.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1345.                         plugin->loadSaveState(saveState);

  1346.                 }

  1347. 

  1348.                 //pluginsAdded = true;

  1349.             }

  1350.         }

  1351. 

  1352.         //if (pluginsAdded)

  1353.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1354.     }

  1355. 

  1356.     // -------------------------------------------------------------------

  1357. 

  1358. public:

  1359.     #define handlePtr ((CarlaEngineNative*)handle)

  1360. 

  1361.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1362.     {

  1363.         return new CarlaEngineNative(host, false);

  1364.     }

  1365. 

  1366. #ifdef HAVE_JUCE

  1367.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1368.     {

  1369.         return new CarlaEngineNative(host, true);

  1370.     }

  1371. #endif

  1372. 

  1373.     static void _cleanup(NativePluginHandle handle)

  1374.     {

  1375.         delete handlePtr;

  1376.     }

  1377. 

  1378.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1379.     {

  1380.         return handlePtr->getParameterCount();

  1381.     }

  1382. 

  1383.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1384.     {

  1385.         return handlePtr->getParameterInfo(index);

  1386.     }

  1387. 

  1388.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1389.     {

  1390.         return handlePtr->getParameterValue(index);

  1391.     }

  1392. 

  1393.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index, float value)

  1394.     {

  1395.         return handlePtr->getParameterText(index, value);

  1396.     }

  1397. 

  1398.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1399.     {

  1400.         return handlePtr->getMidiProgramCount();

  1401.     }

  1402. 

  1403.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1404.     {

  1405.         return handlePtr->getMidiProgramInfo(index);

  1406.     }

  1407. 

  1408.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1409.     {

  1410.         handlePtr->setParameterValue(index, value);

  1411.     }

  1412. 

  1413.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1414.     {

  1415.         handlePtr->setMidiProgram(channel, bank, program);

  1416.     }

  1417. 

  1418.     static void _ui_show(NativePluginHandle handle, bool show)

  1419.     {

  1420.         handlePtr->uiShow(show);

  1421.     }

  1422. 

  1423.     static void _ui_idle(NativePluginHandle handle)

  1424.     {

  1425.         handlePtr->uiIdle();

  1426.     }

  1427. 

  1428.     static void _activate(NativePluginHandle handle)

  1429.     {

  1430.         handlePtr->activate();

  1431.     }

  1432. 

  1433.     static void _deactivate(NativePluginHandle handle)

  1434.     {

  1435.         handlePtr->deactivate();

  1436.     }

  1437. 

  1438.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1439.     {

  1440.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1441.     }

  1442. 

  1443.     static char* _get_state(NativePluginHandle handle)

  1444.     {

  1445.         return handlePtr->getState();

  1446.     }

  1447. 

  1448.     static void _set_state(NativePluginHandle handle, const char* data)

  1449.     {

  1450.         handlePtr->setState(data);

  1451.     }

  1452. 

  1453.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1454.     {

  1455.         switch(opcode)

  1456.         {

  1457.         case PLUGIN_OPCODE_NULL:

  1458.             return 0;

  1459.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1460.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1461.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1462.             return 0;

  1463.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1464.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1465.             return 0;

  1466.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1467.             handlePtr->offlineModeChanged(value != 0);

  1468.             return 0;

  1469.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1470.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1471.             return 0;

  1472.         }

  1473. 

  1474.         return 0;

  1475. 

  1476.         // unused

  1477.         (void)index;

  1478.         (void)ptr;

  1479.     }

  1480. 

  1481.     // -------------------------------------------------------------------

  1482. 

  1483.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1484.     {

  1485.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1486.     }

  1487. 

  1488.     // -------------------------------------------------------------------

  1489. 

  1490.     #undef handlePtr

  1491. 

  1492. private:

  1493.     const NativeHostDescriptor* const pHost;

  1494. 

  1495.     const bool fIsPatchbay; // rack if false

  1496.     bool fIsActive, fIsRunning;

  1497.     CarlaEngineNativeUI fUiServer;

  1498. 

  1499.     char fTmpBuf[STR_MAX+1];

  1500. 

  1501.     CarlaPlugin* _getFirstPlugin() const noexcept

  1502.     {

  1503.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1504.             return nullptr;

  1505. 

  1506.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1507. 

  1508.         if (plugin == nullptr || ! plugin->isEnabled())

  1509.             return nullptr;

  1510. 

  1511.         return pData->plugins[0].plugin;

  1512.     }

  1513. 

  1514.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1515. };

  1516. 

  1517. // -----------------------------------------------------------------------

  1518. 

  1519. static const NativePluginDescriptor carlaRackDesc = {

  1520.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

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

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

  1523.     /* audioIns  */ 2,

  1524.     /* audioOuts */ 2,

  1525.     /* midiIns   */ 1,

  1526.     /* midiOuts  */ 1,

  1527.     /* paramIns  */ 0,

  1528.     /* paramOuts */ 0,

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

  1530.     /* label     */ "carlarack",

  1531.     /* maker     */ "falkTX",

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

  1533.     CarlaEngineNative::_instantiateRack,

  1534.     CarlaEngineNative::_cleanup,

  1535.     CarlaEngineNative::_get_parameter_count,

  1536.     CarlaEngineNative::_get_parameter_info,

  1537.     CarlaEngineNative::_get_parameter_value,

  1538.     CarlaEngineNative::_get_parameter_text,

  1539.     CarlaEngineNative::_get_midi_program_count,

  1540.     CarlaEngineNative::_get_midi_program_info,

  1541.     CarlaEngineNative::_set_parameter_value,

  1542.     CarlaEngineNative::_set_midi_program,

  1543.     /* _set_custom_data        */ nullptr,

  1544.     CarlaEngineNative::_ui_show,

  1545.     CarlaEngineNative::_ui_idle,

  1546.     /* _ui_set_parameter_value */ nullptr,

  1547.     /* _ui_set_midi_program    */ nullptr,

  1548.     /* _ui_set_custom_data     */ nullptr,

  1549.     CarlaEngineNative::_activate,

  1550.     CarlaEngineNative::_deactivate,

  1551.     CarlaEngineNative::_process,

  1552.     CarlaEngineNative::_get_state,

  1553.     CarlaEngineNative::_set_state,

  1554.     CarlaEngineNative::_dispatcher

  1555. };

  1556. 

  1557. #if 0 //def HAVE_JUCE

  1558. static const NativePluginDescriptor carlaPatchbayDesc = {

  1559.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1560.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1561.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1562.     /* audioIns  */ 2,

  1563.     /* audioOuts */ 2,

  1564.     /* midiIns   */ 1,

  1565.     /* midiOuts  */ 1,

  1566.     /* paramIns  */ 0,

  1567.     /* paramOuts */ 0,

  1568.     /* name      */ "Carla-Patchbay",

  1569.     /* label     */ "carlapatchbay",

  1570.     /* maker     */ "falkTX",

  1571.     /* copyright */ "GNU GPL v2+",

  1572.     CarlaEngineNative::_instantiatePatchbay,

  1573.     CarlaEngineNative::_cleanup,

  1574.     CarlaEngineNative::_get_parameter_count,

  1575.     CarlaEngineNative::_get_parameter_info,

  1576.     CarlaEngineNative::_get_parameter_value,

  1577.     CarlaEngineNative::_get_parameter_text,

  1578.     CarlaEngineNative::_get_midi_program_count,

  1579.     CarlaEngineNative::_get_midi_program_info,

  1580.     CarlaEngineNative::_set_parameter_value,

  1581.     CarlaEngineNative::_set_midi_program,

  1582.     /* _set_custom_data        */ nullptr,

  1583.     CarlaEngineNative::_ui_show,

  1584.     CarlaEngineNative::_ui_idle,

  1585.     /* _ui_set_parameter_value */ nullptr,

  1586.     /* _ui_set_midi_program    */ nullptr,

  1587.     /* _ui_set_custom_data     */ nullptr,

  1588.     CarlaEngineNative::_activate,

  1589.     CarlaEngineNative::_deactivate,

  1590.     CarlaEngineNative::_process,

  1591.     CarlaEngineNative::_get_state,

  1592.     CarlaEngineNative::_set_state,

  1593.     CarlaEngineNative::_dispatcher

  1594. };

  1595. #endif

  1596. 

  1597. // -----------------------------------------------------------------------

  1598. 

  1599. CARLA_BACKEND_END_NAMESPACE

  1600. 

  1601. CARLA_EXPORT

  1602. void carla_register_native_plugin_carla();

  1603. 

  1604. void carla_register_native_plugin_carla()

  1605. {

  1606.     CARLA_BACKEND_USE_NAMESPACE;

  1607.     carla_register_native_plugin(&carlaRackDesc);

  1608. #if 0 //def HAVE_JUCE

  1609.     carla_register_native_plugin(&carlaPatchbayDesc);

  1610. #endif

  1611. }

  1612. 

  1613. // -----------------------------------------------------------------------

  1614. // Extra stuff for linking purposes

  1615. 

  1616. #ifdef CARLA_PLUGIN_EXPORT

  1617. 

  1618. CARLA_BACKEND_START_NAMESPACE

  1619. 

  1620. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1621. 

  1622. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }

  1623. unsigned int       CarlaEngine::getRtAudioApiCount() { return 0; }

  1624. const char*        CarlaEngine::getRtAudioApiName(const unsigned int) { return nullptr; }

  1625. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const unsigned int) { return nullptr; }

  1626. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1627. 

  1628. # ifdef HAVE_JUCE

  1629. CarlaEngine*       CarlaEngine::newJuce(const AudioApi) { return nullptr; }

  1630. unsigned int       CarlaEngine::getJuceApiCount() { return 0; }

  1631. const char*        CarlaEngine::getJuceApiName(const unsigned int) { return nullptr; }

  1632. const char* const* CarlaEngine::getJuceApiDeviceNames(const unsigned int) { return nullptr; }

  1633. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const unsigned int, const char* const) { return nullptr; }

  1634. # endif

  1635. 

  1636. CARLA_BACKEND_END_NAMESPACE

  1637. 

  1638. #ifdef WANT_DSSI

  1639. # include "CarlaDssiUtils.cpp"

  1640. #endif

  1641. 

  1642. #include "CarlaStateUtils.cpp"

  1643. 

  1644. #endif

  1645. 

  1646. // -----------------------------------------------------------------------