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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_mapped_control_index") == 0)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  181. 

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

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

  184.     return 0;

  185. }

  186. 

  187. // -----------------------------------------------------------------------

  188. 

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

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

  191. {

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

  193.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");

  194. 

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

  196.     const lo_address addr = lo_address_new_from_url(url);

  197. 

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

  199. 

  200.     if (oscData.owner != nullptr)

  201.     {

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

  203. 

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

  205. 

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

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

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

  209. 

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

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

  212. 

  213.         free(path);

  214.     }

  215.     else

  216.     {

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

  218. 

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

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

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

  222. 

  223.         oscData.owner  = carla_strdup_safe(url);

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

  225.         oscData.target = target;

  226. 

  227.         if (isTCP)

  228.         {

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

  230. 

  231.             fEngine->callback(false, true,

  232.                               ENGINE_CALLBACK_ENGINE_STARTED,

  233.                               fEngine->getCurrentPluginCount(),

  234.                               opts.processMode,

  235.                               opts.transportMode,

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

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

  238.                               fEngine->getCurrentDriverName());

  239. 

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

  241.             {

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

  243.                 CARLA_SAFE_ASSERT_CONTINUE(plugin != nullptr);

  244. 

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

  246.             }

  247. 

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

  249.         }

  250.     }

  251. 

  252.     lo_address_free(addr);

  253.     return 0;

  254. }

  255. 

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

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

  258. {

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

  260.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");

  261. 

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

  263. 

  264.     if (oscData.owner == nullptr)

  265.     {

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

  267.         return 0;

  268.     }

  269. 

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

  271. 

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

  273.     {

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

  275.         oscData.clear();

  276.         return 0;

  277.     }

  278. 

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

  280.     return 0;

  281. }

  282. 

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

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

  285. {

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

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

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

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

  290. 

  291.     if (fControlDataTCP.owner == nullptr)

  292.     {

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

  294.         return 0;

  295.     }

  296. 

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

  298.     bool ok;

  299. 

  300. #define CARLA_SAFE_ASSERT_RETURN_OSC_ERR(cond) \

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

  302. 

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

  304.     {

  305.         ok = true;

  306.         fEngine->clearXruns();

  307.     }

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

  309.     {

  310.         ok = true;

  311.         fEngine->setActionCanceled(true);

  312.     }

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

  314.     {

  315.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 6);

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

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

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

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

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

  321. 

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

  323. 

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

  325.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupA >= 0);

  326. 

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

  328.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(portA >= 0);

  329. 

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

  331.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupB >= 0);

  332. 

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

  334.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(portB >= 0);

  335. 

  336.         ok = fEngine->patchbayConnect(external,

  337.                                       static_cast<uint32_t>(groupA),

  338.                                       static_cast<uint32_t>(portA),

  339.                                       static_cast<uint32_t>(groupB),

  340.                                       static_cast<uint32_t>(portB));

  341.     }

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

  343.     {

  344.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  347. 

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

  349. 

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

  351.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(connectionId >= 0);

  352. 

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

  354.     }

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

  356.     {

  357.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  359. 

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

  361. 

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

  363.     }

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

  365.     {

  366.         ok = true;

  367.         fEngine->transportPlay();

  368.     }

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

  370.     {

  371.         ok = true;

  372.         fEngine->transportPause();

  373.     }

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

  375.     {

  376.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  378. 

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

  380.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(bpm >= 0.0);

  381. 

  382.         ok = true;

  383.         fEngine->transportBPM(bpm);

  384.     }

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

  386.     {

  387.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  388. 

  389.         uint64_t frame;

  390. 

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

  392.         {

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

  394.             CARLA_SAFE_ASSERT_RETURN_OSC_ERR(i >= 0);

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

  396.         }

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

  398.         {

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

  400.             CARLA_SAFE_ASSERT_RETURN_OSC_ERR(h >= 0);

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

  402.         }

  403.         else

  404.         {

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

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

  407.             return 0;

  408.         }

  409. 

  410.         ok = true;

  411.         fEngine->transportRelocate(frame);

  412.     }

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

  414.     {

  415.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 8);

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

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

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

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

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

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

  422. 

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

  424.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(btype >= 0);

  425. 

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

  427.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(ptype >= 0);

  428. 

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

  430.         switch (ptype)

  431.         {

  432.         case PLUGIN_INTERNAL:

  433.         case PLUGIN_LV2:

  434.         case PLUGIN_SF2:

  435.         case PLUGIN_SFZ:

  436.         case PLUGIN_JACK:

  437.             btype = BINARY_NATIVE;

  438.             break;

  439.         }

  440. 

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

  442. 

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

  444.             filename = nullptr;

  445. 

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

  447. 

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

  449.             name = nullptr;

  450. 

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

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

  453. 

  454.         int64_t uniqueId;

  455. 

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

  457.         {

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

  459.         }

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

  461.         {

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

  463.         }

  464.         else

  465.         {

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

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

  468.             return 0;

  469.         }

  470. 

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

  472.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(options >= 0);

  473. 

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

  475.                                 static_cast<PluginType>(ptype),

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

  477.     }

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

  479.     {

  480.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  482. 

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

  484.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  485. 

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

  487.     }

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

  489.     {

  490.         ok = fEngine->removeAllPlugins();

  491.     }

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

  493.     {

  494.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  497. 

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

  499.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  500. 

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

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

  503. 

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

  505.     }

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

  507.     {

  508.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  510. 

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

  512.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  513. 

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

  515.     }

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

  517.     {

  518.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  520. 

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

  522.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  523. 

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

  525.     }

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

  527.     {

  528.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  531. 

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

  533.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(idA >= 0);

  534. 

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

  536.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(idB >= 0);

  537. 

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

  539.     }

  540.     else

  541.     {

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

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

  544.         return 0;

  545.     }

  546. 

  547. #undef CARLA_SAFE_ASSERT_RETURN_OSC_ERR

  548. 

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

  550.     return 0;

  551. }

  552. 

  553. // -----------------------------------------------------------------------

  554. 

  555. int CarlaEngineOsc::handleMsgSetActive(CARLA_ENGINE_OSC_HANDLE_ARGS)

  556. {

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

  558.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  559. 

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

  561. 

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

  563.     return 0;

  564. }

  565. 

  566. int CarlaEngineOsc::handleMsgSetDryWet(CARLA_ENGINE_OSC_HANDLE_ARGS)

  567. {

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

  569.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  570. 

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

  572. 

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

  574.     return 0;

  575. }

  576. 

  577. int CarlaEngineOsc::handleMsgSetVolume(CARLA_ENGINE_OSC_HANDLE_ARGS)

  578. {

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

  580.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  581. 

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

  583. 

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

  585.     return 0;

  586. }

  587. 

  588. int CarlaEngineOsc::handleMsgSetBalanceLeft(CARLA_ENGINE_OSC_HANDLE_ARGS)

  589. {

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

  591.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  592. 

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

  594. 

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

  596.     return 0;

  597. }

  598. 

  599. int CarlaEngineOsc::handleMsgSetBalanceRight(CARLA_ENGINE_OSC_HANDLE_ARGS)

  600. {

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

  602.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  603. 

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

  605. 

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

  607.     return 0;

  608. }

  609. 

  610. int CarlaEngineOsc::handleMsgSetPanning(CARLA_ENGINE_OSC_HANDLE_ARGS)

  611. {

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

  613.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  614. 

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

  616. 

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

  618.     return 0;

  619. }

  620. 

  621. int CarlaEngineOsc::handleMsgSetParameterValue(CARLA_ENGINE_OSC_HANDLE_ARGS)

  622. {

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

  624.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "if");

  625. 

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

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

  628. 

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

  630. 

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

  632.     return 0;

  633. }

  634. 

  635. int CarlaEngineOsc::handleMsgSetParameterMappedControlIndex(CARLA_ENGINE_OSC_HANDLE_ARGS)

  636. {

  637.     carla_debug("CarlaEngineOsc::handleMsgSetParameterMappedIndex()");

  638.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  639. 

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

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

  642. 

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

  644.     CARLA_SAFE_ASSERT_RETURN(ctrl >= CONTROL_INDEX_NONE && ctrl <= CONTROL_INDEX_MAX_ALLOWED, 0);

  645. 

  646.     plugin->setParameterMappedControlIndex(static_cast<uint32_t>(index), static_cast<int16_t>(ctrl), false, true);

  647.     return 0;

  648. }

  649. 

  650. int CarlaEngineOsc::handleMsgSetParameterMappedRange(CARLA_ENGINE_OSC_HANDLE_ARGS)

  651. {

  652.     carla_debug("CarlaEngineOsc::handleMsgSetParameterMappedRange()");

  653.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "iff");

  654. 

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

  656.     const float   minimum = argv[1]->f;

  657.     const float   maximum = argv[2]->f;

  658. 

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

  660. 

  661.     plugin->setParameterMappedRange(static_cast<uint32_t>(index), minimum, maximum, false, true);

  662.     return 0;

  663. }

  664. 

  665. int CarlaEngineOsc::handleMsgSetParameterMidiChannel(CARLA_ENGINE_OSC_HANDLE_ARGS)

  666. {

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

  668.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  669. 

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

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

  672. 

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

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

  675. 

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

  677.     return 0;

  678. }

  679. 

  680. int CarlaEngineOsc::handleMsgSetProgram(CARLA_ENGINE_OSC_HANDLE_ARGS)

  681. {

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

  683.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  684. 

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

  686. 

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

  688. 

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

  690.     return 0;

  691. }

  692. 

  693. int CarlaEngineOsc::handleMsgSetMidiProgram(CARLA_ENGINE_OSC_HANDLE_ARGS)

  694. {

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

  696.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  697. 

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

  699. 

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

  701. 

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

  703.     return 0;

  704. }

  705. 

  706. int CarlaEngineOsc::handleMsgNoteOn(CARLA_ENGINE_OSC_HANDLE_ARGS)

  707. {

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

  709.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(3, "iii");

  710. 

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

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

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

  714. 

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

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

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

  718. 

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

  720.     return 0;

  721. }

  722. 

  723. int CarlaEngineOsc::handleMsgNoteOff(CARLA_ENGINE_OSC_HANDLE_ARGS)

  724. {

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

  726.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  727. 

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

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

  730. 

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

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

  733. 

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

  735.     return 0;

  736. }

  737. 

  738. // -----------------------------------------------------------------------

  739. 

  740. CARLA_BACKEND_END_NAMESPACE

  741. 

  742. #endif // HAVE_LIBLO