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Carla/source/backend/engine/CarlaEngineOscHandlers.cpp

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  1.  /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2019 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 "CarlaEngineOsc.hpp"

  19. 

  20. #ifdef HAVE_LIBLO

  21. 

  22. #include "CarlaEngineInternal.hpp"

  23. #include "CarlaPlugin.hpp"

  24. #include "CarlaMIDI.h"

  25. 

  26. #include <cctype>

  27. 

  28. CARLA_BACKEND_START_NAMESPACE

  29. 

  30. // -----------------------------------------------------------------------

  31. 

  32. int CarlaEngineOsc::handleMessage(const bool isTCP, const char* const path, const int argc, const lo_arg* const* const argv, const char* const types, const lo_message msg)

  33. {

  34.     CARLA_SAFE_ASSERT_RETURN(fName.isNotEmpty(), 1);

  35.     CARLA_SAFE_ASSERT_RETURN(path != nullptr && path[0] != '\0', 1);

  36. #ifdef DEBUG

  37.     if (std::strstr(path, "/bridge_pong") == nullptr) {

  38.         carla_debug("CarlaEngineOsc::handleMessage(%s, \"%s\", %i, %p, \"%s\", %p)", bool2str(isTCP), path, argc, argv, types, msg);

  39.     }

  40. #endif

  41. 

  42.     if (isTCP)

  43.     {

  44.         CARLA_SAFE_ASSERT_RETURN(fServerPathTCP.isNotEmpty(), 1);

  45.         CARLA_SAFE_ASSERT_RETURN(fServerTCP != nullptr, 1);

  46.     }

  47.     else

  48.     {

  49.         CARLA_SAFE_ASSERT_RETURN(fServerPathUDP.isNotEmpty(), 1);

  50.         CARLA_SAFE_ASSERT_RETURN(fServerUDP != nullptr, 1);

  51.     }

  52. 

  53.     // Initial path check

  54.     if (std::strcmp(path, "/register") == 0)

  55.         return handleMsgRegister(isTCP, argc, argv, types);

  56. 

  57.     if (std::strcmp(path, "/unregister") == 0)

  58.         return handleMsgUnregister(isTCP, argc, argv, types);

  59. 

  60.     if (std::strncmp(path, "/ctrl/", 6) == 0)

  61.     {

  62.         CARLA_SAFE_ASSERT_RETURN(isTCP, 1);

  63.         return handleMsgControl(path + 6, argc, argv, types);

  64.     }

  65. 

  66.     const std::size_t nameSize(fName.length());

  67. 

  68.     // Check if message is for this client

  69.     if (std::strlen(path) <= nameSize || std::strncmp(path+1, fName, nameSize) != 0)

  70.     {

  71.         carla_stderr("CarlaEngineOsc::handleMessage() - message not for this client -> '%s' != '/%s/'",

  72.                      path, fName.buffer());

  73.         return 1;

  74.     }

  75. 

  76.     // Get plugin id from path, "/carla/23/method" -> 23

  77.     uint pluginId = 0;

  78.     std::size_t offset;

  79. 

  80.     if (std::isdigit(path[nameSize+2]))

  81.     {

  82.         if (std::isdigit(path[nameSize+3]))

  83.         {

  84.             if (std::isdigit(path[nameSize+5]))

  85.             {

  86.                 carla_stderr2("CarlaEngineOsc::handleMessage() - invalid plugin id, over 999? (value: \"%s\")", path+(nameSize+1));

  87.                 return 1;

  88.             }

  89.             else if (std::isdigit(path[nameSize+4]))

  90.             {

  91.                 // 3 digits, /xyz/method

  92.                 offset    = 6;

  93.                 pluginId += uint(path[nameSize+2]-'0')*100;

  94.                 pluginId += uint(path[nameSize+3]-'0')*10;

  95.                 pluginId += uint(path[nameSize+4]-'0');

  96.             }

  97.             else

  98.             {

  99.                 // 2 digits, /xy/method

  100.                 offset    = 5;

  101.                 pluginId += uint(path[nameSize+2]-'0')*10;

  102.                 pluginId += uint(path[nameSize+3]-'0');

  103.             }

  104.         }

  105.         else

  106.         {

  107.             // single digit, /x/method

  108.             offset    = 4;

  109.             pluginId += uint(path[nameSize+2]-'0');

  110.         }

  111.     }

  112.     else

  113.     {

  114.         carla_stderr("CarlaEngineOsc::handleMessage() - invalid message '%s'", path);

  115.         return 1;

  116.     }

  117. 

  118.     if (pluginId > fEngine->getCurrentPluginCount())

  119.     {

  120.         carla_stderr("CarlaEngineOsc::handleMessage() - failed to get plugin, wrong id '%i'", pluginId);

  121.         return 0;

  122.     }

  123. 

  124.     // Get plugin

  125.     CarlaPlugin* const plugin(fEngine->getPluginUnchecked(pluginId));

  126. 

  127.     if (plugin == nullptr || plugin->getId() != pluginId)

  128.     {

  129.         carla_stderr("CarlaEngineOsc::handleMessage() - invalid plugin id '%i', probably has been removed (path: '%s')", pluginId, path);

  130.         return 0;

  131.     }

  132. 

  133.     // Get method from path, "/Carla/i/method" -> "method"

  134.     char method[32+1];

  135.     method[32] = '\0';

  136.     std::strncpy(method, path + (nameSize + offset), 32);

  137. 

  138.     if (method[0] == '\0')

  139.     {

  140.         carla_stderr("CarlaEngineOsc::handleMessage(%s, \"%s\", ...) - received message without method", bool2str(isTCP), path);

  141.         return 0;

  142.     }

  143. 

  144.     // Internal methods

  145.     if (std::strcmp(method, "set_option") == 0)

  146.         return 0; //handleMsgSetOption(plugin, argc, argv, types); // TODO

  147.     if (std::strcmp(method, "set_active") == 0)

  148.         return handleMsgSetActive(plugin, argc, argv, types);

  149.     if (std::strcmp(method, "set_drywet") == 0)

  150.         return handleMsgSetDryWet(plugin, argc, argv, types);

  151.     if (std::strcmp(method, "set_volume") == 0)

  152.         return handleMsgSetVolume(plugin, argc, argv, types);

  153.     if (std::strcmp(method, "set_balance_left") == 0)

  154.         return handleMsgSetBalanceLeft(plugin, argc, argv, types);

  155.     if (std::strcmp(method, "set_balance_right") == 0)

  156.         return handleMsgSetBalanceRight(plugin, argc, argv, types);

  157.     if (std::strcmp(method, "set_panning") == 0)

  158.         return handleMsgSetPanning(plugin, argc, argv, types);

  159.     if (std::strcmp(method, "set_ctrl_channel") == 0)

  160.         return 0; //handleMsgSetControlChannel(plugin, argc, argv, types); // TODO

  161.     if (std::strcmp(method, "set_parameter_value") == 0)

  162.         return handleMsgSetParameterValue(plugin, argc, argv, types);

  163.     if (std::strcmp(method, "set_parameter_midi_cc") == 0)

  164.         return handleMsgSetParameterMidiCC(plugin, argc, argv, types);

  165.     if (std::strcmp(method, "set_parameter_midi_channel") == 0)

  166.         return handleMsgSetParameterMidiChannel(plugin, argc, argv, types);

  167.     if (std::strcmp(method, "set_program") == 0)

  168.         return handleMsgSetProgram(plugin, argc, argv, types);

  169.     if (std::strcmp(method, "set_midi_program") == 0)

  170.         return handleMsgSetMidiProgram(plugin, argc, argv, types);

  171.     if (std::strcmp(method, "set_custom_data") == 0)

  172.         return 0; //handleMsgSetCustomData(plugin, argc, argv, types); // TODO

  173.     if (std::strcmp(method, "set_chunk") == 0)

  174.         return 0; //handleMsgSetChunk(plugin, argc, argv, types); // TODO

  175.     if (std::strcmp(method, "note_on") == 0)

  176.         return handleMsgNoteOn(plugin, argc, argv, types);

  177.     if (std::strcmp(method, "note_off") == 0)

  178.         return handleMsgNoteOff(plugin, argc, argv, types);

  179. 

  180.     // Send all other methods to plugins, TODO

  181.     plugin->handleOscMessage(method, argc, argv, types, msg);

  182.     return 0;

  183. }

  184. 

  185. // -----------------------------------------------------------------------

  186. 

  187. int CarlaEngineOsc::handleMsgRegister(const bool isTCP,

  188.                                       const int argc, const lo_arg* const* const argv, const char* const types)

  189. {

  190.     carla_debug("CarlaEngineOsc::handleMsgRegister()");

  191.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");

  192. 

  193.     const char* const url = &argv[0]->s;

  194.     const lo_address addr = lo_address_new_from_url(url);

  195. 

  196.     CarlaOscData& oscData(isTCP ? fControlDataTCP : fControlDataUDP);

  197. 

  198.     if (oscData.owner != nullptr)

  199.     {

  200.         carla_stderr("OSC backend already registered to %s", oscData.owner);

  201. 

  202.         char* const path = lo_url_get_path(url);

  203. 

  204.         char targetPath[std::strlen(path)+18];

  205.         std::strcpy(targetPath, path);

  206.         std::strcat(targetPath, "/exit-error");

  207. 

  208.         lo_send_from(addr, isTCP ? fServerTCP : fServerUDP, LO_TT_IMMEDIATE,

  209.                      targetPath, "s", "OSC already registered to another client");

  210. 

  211.         free(path);

  212.     }

  213.     else

  214.     {

  215.         carla_stdout("OSC backend registered to %s", url);

  216. 

  217.         const char* const host  = lo_address_get_hostname(addr);

  218.         const char* const port  = lo_address_get_port(addr);

  219.         const lo_address target = lo_address_new_with_proto(isTCP ? LO_TCP : LO_UDP, host, port);

  220. 

  221.         oscData.owner  = carla_strdup_safe(url);

  222.         oscData.path   = carla_strdup_free(lo_url_get_path(url));

  223.         oscData.target = target;

  224. 

  225.         if (isTCP)

  226.         {

  227.             const EngineOptions& opts(fEngine->getOptions());

  228. 

  229.             fEngine->callback(false, true,

  230.                               ENGINE_CALLBACK_ENGINE_STARTED,

  231.                               fEngine->getCurrentPluginCount(),

  232.                               opts.processMode,

  233.                               opts.transportMode,

  234.                               static_cast<int>(fEngine->getBufferSize()),

  235.                               static_cast<float>(fEngine->getSampleRate()),

  236.                               fEngine->getCurrentDriverName());

  237. 

  238.             for (uint i=0, count=fEngine->getCurrentPluginCount(); i < count; ++i)

  239.             {

  240.                 CarlaPlugin* const plugin(fEngine->getPluginUnchecked(i));

  241.                 CARLA_SAFE_ASSERT_CONTINUE(plugin != nullptr);

  242. 

  243.                 fEngine->callback(false, true, ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0, 0.0f, plugin->getName());

  244.             }

  245. 

  246.             fEngine->patchbayRefresh(false, true, fEngine->pData->graph.isUsingExternalOSC());

  247.         }

  248.     }

  249. 

  250.     lo_address_free(addr);

  251.     return 0;

  252. }

  253. 

  254. int CarlaEngineOsc::handleMsgUnregister(const bool isTCP,

  255.                                         const int argc, const lo_arg* const* const argv, const char* const types)

  256. {

  257.     carla_debug("CarlaEngineOsc::handleMsgUnregister()");

  258.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");

  259. 

  260.     CarlaOscData& oscData(isTCP ? fControlDataTCP : fControlDataUDP);

  261. 

  262.     if (oscData.owner == nullptr)

  263.     {

  264.         carla_stderr("OSC backend is not registered yet, unregister failed");

  265.         return 0;

  266.     }

  267. 

  268.     const char* const url = &argv[0]->s;

  269. 

  270.     if (std::strcmp(oscData.owner, url) == 0)

  271.     {

  272.         carla_stdout("OSC client %s unregistered", url);

  273.         oscData.clear();

  274.         return 0;

  275.     }

  276. 

  277.     carla_stderr("OSC backend unregister failed, current owner %s does not match requested %s", oscData.owner, url);

  278.     return 0;

  279. }

  280. 

  281. int CarlaEngineOsc::handleMsgControl(const char* const method,

  282.                                      const int argc, const lo_arg* const* const argv, const char* const types)

  283. {

  284.     carla_debug("CarlaEngineOsc::handleMsgControl()");

  285.     CARLA_SAFE_ASSERT_RETURN(method != nullptr && method[0] != '\0', 0);

  286.     CARLA_SAFE_ASSERT_RETURN(types != nullptr, 0);

  287.     CARLA_SAFE_ASSERT_RETURN(types[0] == 'i', 0);

  288. 

  289.     if (fControlDataTCP.owner == nullptr)

  290.     {

  291.         carla_stderr("OSC backend is not registered yet, control failed");

  292.         return 0;

  293.     }

  294. 

  295.     const int32_t messageId = argv[0]->i;

  296.     bool ok;

  297. 

  298. #define CARLA_SAFE_ASSERT_RETURN_OSC_ERR(cond) \

  299.     if (! (cond)) { carla_safe_assert(#cond, __FILE__, __LINE__); sendResponse(messageId, #cond); return 0; }

  300. 

  301.     /**/ if (std::strcmp(method, "clear_engine_xruns") == 0)

  302.     {

  303.         ok = true;

  304.         fEngine->clearXruns();

  305.     }

  306.     else if (std::strcmp(method, "cancel_engine_action") == 0)

  307.     {

  308.         ok = true;

  309.         fEngine->setActionCanceled(true);

  310.     }

  311.     else if (std::strcmp(method, "patchbay_connect") == 0)

  312.     {

  313.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 6);

  314.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  315.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[2] == 'i');

  316.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[3] == 'i');

  317.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[4] == 'i');

  318.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[5] == 'i');

  319. 

  320.         const bool external = argv[1]->i != 0;

  321. 

  322.         const int32_t groupA = argv[2]->i;

  323.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupA >= 0);

  324. 

  325.         const int32_t portA = argv[3]->i;

  326.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(portA >= 0);

  327. 

  328.         const int32_t groupB = argv[4]->i;

  329.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupB >= 0);

  330. 

  331.         const int32_t portB = argv[5]->i;

  332.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(portB >= 0);

  333. 

  334.         ok = fEngine->patchbayConnect(external,

  335.                                       static_cast<uint32_t>(groupA),

  336.                                       static_cast<uint32_t>(portA),

  337.                                       static_cast<uint32_t>(groupB),

  338.                                       static_cast<uint32_t>(portB));

  339.     }

  340.     else if (std::strcmp(method, "patchbay_disconnect") == 0)

  341.     {

  342.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

  343.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  344.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[2] == 'i');

  345. 

  346.         const bool external = argv[1]->i != 0;

  347. 

  348.         const int32_t connectionId = argv[2]->i;

  349.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(connectionId >= 0);

  350. 

  351.         ok = fEngine->patchbayDisconnect(external, static_cast<uint32_t>(connectionId));

  352.     }

  353.     else if (std::strcmp(method, "patchbay_refresh") == 0)

  354.     {

  355.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  356.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  357. 

  358.         const bool external = argv[1]->i != 0;

  359. 

  360.         ok = fEngine->patchbayRefresh(false, true, external);

  361.     }

  362.     else if (std::strcmp(method, "transport_play") == 0)

  363.     {

  364.         ok = true;

  365.         fEngine->transportPlay();

  366.     }

  367.     else if (std::strcmp(method, "transport_pause") == 0)

  368.     {

  369.         ok = true;

  370.         fEngine->transportPause();

  371.     }

  372.     else if (std::strcmp(method, "transport_bpm") == 0)

  373.     {

  374.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  375.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'f');

  376. 

  377.         const double bpm = argv[1]->f;

  378.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(bpm >= 0.0);

  379. 

  380.         ok = true;

  381.         fEngine->transportBPM(bpm);

  382.     }

  383.     else if (std::strcmp(method, "transport_relocate") == 0)

  384.     {

  385.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  386. 

  387.         uint64_t frame;

  388. 

  389.         /**/ if (types[1] == 'i')

  390.         {

  391.             const int32_t i = argv[1]->i;

  392.             CARLA_SAFE_ASSERT_RETURN_OSC_ERR(i >= 0);

  393.             frame = static_cast<uint64_t>(i);

  394.         }

  395.         else if (types[1] == 'h')

  396.         {

  397.             const int64_t h = argv[1]->h;

  398.             CARLA_SAFE_ASSERT_RETURN_OSC_ERR(h >= 0);

  399.             frame = static_cast<uint64_t>(h);

  400.         }

  401.         else

  402.         {

  403.             carla_stderr2("Wrong OSC type used for '%s'", method);

  404.             sendResponse(messageId, "Wrong OSC type");

  405.             return 0;

  406.         }

  407. 

  408.         ok = true;

  409.         fEngine->transportRelocate(frame);

  410.     }

  411.     else if (std::strcmp(method, "add_plugin") == 0)

  412.     {

  413.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 8);

  414.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  415.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[2] == 'i');

  416.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[3] == 's');

  417.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[4] == 's');

  418.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[5] == 's');

  419.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[7] == 'i');

  420. 

  421.         int32_t btype = argv[1]->i;

  422.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(btype >= 0);

  423. 

  424.         const int32_t ptype = argv[2]->i;

  425.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(ptype >= 0);

  426. 

  427.         // Force binary type to be native in some cases

  428.         switch (ptype)

  429.         {

  430.         case PLUGIN_INTERNAL:

  431.         case PLUGIN_LV2:

  432.         case PLUGIN_SF2:

  433.         case PLUGIN_SFZ:

  434.         case PLUGIN_JACK:

  435.             btype = BINARY_NATIVE;

  436.             break;

  437.         }

  438. 

  439.         const char* filename = &argv[3]->s;

  440. 

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

  442.             filename = nullptr;

  443. 

  444.         const char* name = &argv[4]->s;

  445. 

  446.         if (name != nullptr && std::strcmp(name, "(null)") == 0)

  447.             name = nullptr;

  448. 

  449.         const char* const label = &argv[5]->s;

  450.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(label != nullptr && label[0] != '\0');

  451. 

  452.         int64_t uniqueId;

  453. 

  454.         /**/ if (types[6] == 'i')

  455.         {

  456.             uniqueId = argv[6]->i;

  457.         }

  458.         else if (types[6] == 'h')

  459.         {

  460.             uniqueId = argv[6]->h;

  461.         }

  462.         else

  463.         {

  464.             carla_stderr2("Wrong OSC type used for '%s' uniqueId", method);

  465.             sendResponse(messageId, "Wrong OSC type");

  466.             return 0;

  467.         }

  468. 

  469.         const int32_t options = argv[7]->i;

  470.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(options >= 0);

  471. 

  472.         ok = fEngine->addPlugin(static_cast<BinaryType>(btype),

  473.                                 static_cast<PluginType>(ptype),

  474.                                 filename, name, label, uniqueId, nullptr, static_cast<uint32_t>(options));

  475.     }

  476.     else if (std::strcmp(method, "remove_plugin") == 0)

  477.     {

  478.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  479.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  480. 

  481.         const int32_t id = argv[1]->i;

  482.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  483. 

  484.         ok = fEngine->removePlugin(static_cast<uint32_t>(id));

  485.     }

  486.     else if (std::strcmp(method, "remove_all_plugins") == 0)

  487.     {

  488.         ok = fEngine->removeAllPlugins();

  489.     }

  490.     else if (std::strcmp(method, "rename_plugin") == 0)

  491.     {

  492.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

  493.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  494.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[2] == 's');

  495. 

  496.         const int32_t id = argv[1]->i;

  497.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  498. 

  499.         const char* const newName = &argv[2]->s;

  500.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(newName != nullptr && newName[0] != '\0');

  501. 

  502.         ok = fEngine->renamePlugin(static_cast<uint32_t>(id), newName);

  503.     }

  504.     else if (std::strcmp(method, "clone_plugin") == 0)

  505.     {

  506.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  507.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  508. 

  509.         const int32_t id = argv[1]->i;

  510.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  511. 

  512.         ok = fEngine->clonePlugin(static_cast<uint32_t>(id));

  513.     }

  514.     else if (std::strcmp(method, "replace_plugin") == 0)

  515.     {

  516.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  517.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  518. 

  519.         const int32_t id = argv[1]->i;

  520.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  521. 

  522.         ok = fEngine->replacePlugin(static_cast<uint32_t>(id));

  523.     }

  524.     else if (std::strcmp(method, "switch_plugins") == 0)

  525.     {

  526.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

  527.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[1] == 'i');

  528.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[2] == 'i');

  529. 

  530.         const int32_t idA = argv[1]->i;

  531.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(idA >= 0);

  532. 

  533.         const int32_t idB = argv[2]->i;

  534.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(idB >= 0);

  535. 

  536.         ok = fEngine->switchPlugins(static_cast<uint32_t>(idA), static_cast<uint32_t>(idB));

  537.     }

  538.     else

  539.     {

  540.         carla_stderr2("Unhandled OSC control for '%s'", method);

  541.         sendResponse(messageId, "Unhandled OSC control method");

  542.         return 0;

  543.     }

  544. 

  545. #undef CARLA_SAFE_ASSERT_RETURN_OSC_ERR

  546. 

  547.     sendResponse(messageId, ok ? "" : fEngine->getLastError());

  548.     return 0;

  549. }

  550. 

  551. // -----------------------------------------------------------------------

  552. 

  553. int CarlaEngineOsc::handleMsgSetActive(CARLA_ENGINE_OSC_HANDLE_ARGS)

  554. {

  555.     carla_debug("CarlaEngineOsc::handleMsgSetActive()");

  556.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  557. 

  558.     const bool active = (argv[0]->i != 0);

  559. 

  560.     plugin->setActive(active, false, true);

  561.     return 0;

  562. }

  563. 

  564. int CarlaEngineOsc::handleMsgSetDryWet(CARLA_ENGINE_OSC_HANDLE_ARGS)

  565. {

  566.     carla_debug("CarlaEngineOsc::handleMsgSetDryWet()");

  567.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  568. 

  569.     const float value = argv[0]->f;

  570. 

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

  572.     return 0;

  573. }

  574. 

  575. int CarlaEngineOsc::handleMsgSetVolume(CARLA_ENGINE_OSC_HANDLE_ARGS)

  576. {

  577.     carla_debug("CarlaEngineOsc::handleMsgSetVolume()");

  578.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  579. 

  580.     const float value = argv[0]->f;

  581. 

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

  583.     return 0;

  584. }

  585. 

  586. int CarlaEngineOsc::handleMsgSetBalanceLeft(CARLA_ENGINE_OSC_HANDLE_ARGS)

  587. {

  588.     carla_debug("CarlaEngineOsc::handleMsgSetBalanceLeft()");

  589.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  590. 

  591.     const float value = argv[0]->f;

  592. 

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

  594.     return 0;

  595. }

  596. 

  597. int CarlaEngineOsc::handleMsgSetBalanceRight(CARLA_ENGINE_OSC_HANDLE_ARGS)

  598. {

  599.     carla_debug("CarlaEngineOsc::handleMsgSetBalanceRight()");

  600.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  601. 

  602.     const float value = argv[0]->f;

  603. 

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

  605.     return 0;

  606. }

  607. 

  608. int CarlaEngineOsc::handleMsgSetPanning(CARLA_ENGINE_OSC_HANDLE_ARGS)

  609. {

  610.     carla_debug("CarlaEngineOsc::handleMsgSetPanning()");

  611.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  612. 

  613.     const float value = argv[0]->f;

  614. 

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

  616.     return 0;

  617. }

  618. 

  619. int CarlaEngineOsc::handleMsgSetParameterValue(CARLA_ENGINE_OSC_HANDLE_ARGS)

  620. {

  621.     carla_debug("CarlaEngineOsc::handleMsgSetParameterValue()");

  622.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "if");

  623. 

  624.     const int32_t index = argv[0]->i;

  625.     const float   value = argv[1]->f;

  626. 

  627.     CARLA_SAFE_ASSERT_RETURN(index >= 0, 0);

  628. 

  629.     plugin->setParameterValue(static_cast<uint32_t>(index), value, true, false, true);

  630.     return 0;

  631. }

  632. 

  633. int CarlaEngineOsc::handleMsgSetParameterMidiCC(CARLA_ENGINE_OSC_HANDLE_ARGS)

  634. {

  635.     carla_debug("CarlaEngineOsc::handleMsgSetParameterMidiCC()");

  636.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  637. 

  638.     const int32_t index = argv[0]->i;

  639.     const int32_t cc    = argv[1]->i;

  640. 

  641.     CARLA_SAFE_ASSERT_RETURN(index >= 0, 0);

  642.     CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL, 0);

  643. 

  644.     plugin->setParameterMidiCC(static_cast<uint32_t>(index), static_cast<int16_t>(cc), false, true);

  645.     return 0;

  646. }

  647. 

  648. int CarlaEngineOsc::handleMsgSetParameterMidiChannel(CARLA_ENGINE_OSC_HANDLE_ARGS)

  649. {

  650.     carla_debug("CarlaEngineOsc::handleMsgSetParameterMidiChannel()");

  651.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  652. 

  653.     const int32_t index   = argv[0]->i;

  654.     const int32_t channel = argv[1]->i;

  655. 

  656.     CARLA_SAFE_ASSERT_RETURN(index >= 0, 0);

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

  658. 

  659.     plugin->setParameterMidiChannel(static_cast<uint32_t>(index), static_cast<uint8_t>(channel), false, true);

  660.     return 0;

  661. }

  662. 

  663. int CarlaEngineOsc::handleMsgSetProgram(CARLA_ENGINE_OSC_HANDLE_ARGS)

  664. {

  665.     carla_debug("CarlaEngineOsc::handleMsgSetProgram()");

  666.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  667. 

  668.     const int32_t index = argv[0]->i;

  669. 

  670.     CARLA_SAFE_ASSERT_RETURN(index >= -1, 0);

  671. 

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

  673.     return 0;

  674. }

  675. 

  676. int CarlaEngineOsc::handleMsgSetMidiProgram(CARLA_ENGINE_OSC_HANDLE_ARGS)

  677. {

  678.     carla_debug("CarlaEngineOsc::handleMsgSetMidiProgram()");

  679.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  680. 

  681.     const int32_t index = argv[0]->i;

  682. 

  683.     CARLA_SAFE_ASSERT_RETURN(index >= -1, 0);

  684. 

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

  686.     return 0;

  687. }

  688. 

  689. int CarlaEngineOsc::handleMsgNoteOn(CARLA_ENGINE_OSC_HANDLE_ARGS)

  690. {

  691.     carla_debug("CarlaEngineOsc::handleMsgNoteOn()");

  692.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(3, "iii");

  693. 

  694.     const int32_t channel = argv[0]->i;

  695.     const int32_t note    = argv[1]->i;

  696.     const int32_t velo    = argv[2]->i;

  697. 

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

  699.     CARLA_SAFE_ASSERT_RETURN(note >= 0 && note < MAX_MIDI_NOTE, 0);

  700.     CARLA_SAFE_ASSERT_RETURN(velo >= 0 && velo < MAX_MIDI_VALUE, 0);

  701. 

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

  703.     return 0;

  704. }

  705. 

  706. int CarlaEngineOsc::handleMsgNoteOff(CARLA_ENGINE_OSC_HANDLE_ARGS)

  707. {

  708.     carla_debug("CarlaEngineOsc::handleMsgNoteOff()");

  709.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  710. 

  711.     const int32_t channel = argv[0]->i;

  712.     const int32_t note    = argv[1]->i;

  713. 

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

  715.     CARLA_SAFE_ASSERT_RETURN(note >= 0 && note < MAX_MIDI_NOTE, 0);

  716. 

  717.     plugin->sendMidiSingleNote(static_cast<uint8_t>(channel), static_cast<uint8_t>(note), 0, true, false, true);

  718.     return 0;

  719. }

  720. 

  721. // -----------------------------------------------------------------------

  722. 

  723. CARLA_BACKEND_END_NAMESPACE

  724. 

  725. #endif // HAVE_LIBLO