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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,

  33.                                   const int argc, const lo_arg* const* const argv, const char* const types,

  34.                                   const lo_message msg)

  35. {

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

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

  38.     CARLA_SAFE_ASSERT_RETURN(path[0] == '/', 1);

  39. #ifdef DEBUG

  40.     if (std::strncmp(path, "/bridge_pong", 12) != 0) {

  41.         carla_debug("CarlaEngineOsc::handleMessage(%s, \"%s\", %i, %p, \"%s\", %p)",

  42.                     bool2str(isTCP), path, argc, argv, types, msg);

  43.     }

  44. #endif

  45. 

  46.     if (isTCP)

  47.     {

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

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

  50.     }

  51.     else

  52.     {

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

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

  55.     }

  56. 

  57.     const lo_address source = lo_message_get_source(msg);

  58. 

  59.     // Initial path check

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

  61.         return handleMsgRegister(isTCP, argc, argv, types, source);

  62. 

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

  64.         return handleMsgUnregister(isTCP, argc, argv, types, source);

  65. 

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

  67.     {

  68.         CARLA_SAFE_ASSERT_RETURN(isTCP, 1);

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

  70.     }

  71. 

  72.     // Check if message is for this client

  73.     std::size_t bytesAfterName;

  74.     if (fControlDataTCP.owner != nullptr && std::strcmp(lo_address_get_hostname(source), fControlDataTCP.owner) == 0)

  75.     {

  76.         if (const char* const slash = std::strchr(path+1, '/'))

  77.         {

  78.             bytesAfterName = static_cast<std::size_t>(slash - path);

  79.         }

  80.         else

  81.         {

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

  83.             return 1;

  84.         }

  85.     }

  86.     else

  87.     {

  88.         bytesAfterName = fName.length();

  89. 

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

  91.         {

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

  93.                         path, fName.buffer());

  94.             return 1;

  95.         }

  96. 

  97.         ++bytesAfterName;

  98.     }

  99. 

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

  101.     uint pluginId = 0;

  102.     std::size_t offset;

  103. 

  104.     if (! std::isdigit(path[bytesAfterName+1]))

  105.     {

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

  107.         return 1;

  108.     }

  109. 

  110.     if (std::isdigit(path[bytesAfterName+2]))

  111.     {

  112.         if (std::isdigit(path[bytesAfterName+4]))

  113.         {

  114.             carla_stderr2("CarlaEngineOsc::handleMessage() - invalid plugin id, over 999? (value: \"%s\")",

  115.                           path+bytesAfterName);

  116.             return 1;

  117.         }

  118.         else if (std::isdigit(path[bytesAfterName+3]))

  119.         {

  120.             // 3 digits, /xyz/method

  121.             offset    = 5;

  122.             pluginId += uint(path[bytesAfterName+1]-'0')*100;

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

  124.             pluginId += uint(path[bytesAfterName+3]-'0');

  125.         }

  126.         else

  127.         {

  128.             // 2 digits, /xy/method

  129.             offset    = 4;

  130.             pluginId += uint(path[bytesAfterName+1]-'0')*10;

  131.             pluginId += uint(path[bytesAfterName+2]-'0');

  132.         }

  133.     }

  134.     else

  135.     {

  136.         // single digit, /x/method

  137.         offset    = 3;

  138.         pluginId += uint(path[bytesAfterName+1]-'0');

  139.     }

  140. 

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

  142.     {

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

  144.         return 0;

  145.     }

  146. 

  147.     // Get plugin

  148.     const CarlaPluginPtr plugin = fEngine->getPluginUnchecked(pluginId);

  149. 

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

  151.     {

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

  153.         return 0;

  154.     }

  155. 

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

  157.     char method[48];

  158.     std::strncpy(method, path + (bytesAfterName + offset), 47);

  159.     method[47] = '\0';

  160. 

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

  162.     {

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

  164.         return 0;

  165.     }

  166. 

  167.     // Internal methods

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  186.     if (std::strcmp(method, "set_parameter_mapped_control_index") == 0)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  204. 

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

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

  207.     return 0;

  208. }

  209. 

  210. // -----------------------------------------------------------------------

  211. 

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

  213.                                       const int argc, const lo_arg* const* const argv, const char* const types,

  214.                                       const lo_address source)

  215. {

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

  217.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");

  218. 

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

  220. 

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

  222. 

  223.     if (oscData.owner != nullptr)

  224.     {

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

  226. 

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

  228.         const size_t pathlen = std::strlen(path);

  229.         CARLA_SAFE_ASSERT_RETURN(pathlen < 32, 0);

  230. 

  231.         char targetPath[pathlen+12];

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

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

  234. 

  235.         lo_send_from(source, isTCP ? fServerTCP : fServerUDP, LO_TT_IMMEDIATE,

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

  237. 

  238.         free(path);

  239.     }

  240.     else

  241.     {

  242.         const char* const host  = lo_address_get_hostname(source);

  243.         /* */ char* const port  = lo_url_get_port(url); // NOTE: lo_address_get_port is buggy against TCP

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

  245. 

  246.         oscData.owner  = carla_strdup_safe(host);

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

  248.         oscData.target = target;

  249. 

  250.         char* const targeturl = lo_address_get_url(target);

  251.         carla_stdout("OSC %s backend registered to %s, path: %s, target: %s (host: %s, port: %s)",

  252.                      isTCP ? "TCP" : "UDP", url, oscData.path, targeturl, host, port);

  253.         free(targeturl);

  254.         free(port);

  255. 

  256.         if (isTCP)

  257.         {

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

  259. 

  260.             fEngine->callback(false, true,

  261.                               ENGINE_CALLBACK_ENGINE_STARTED,

  262.                               fEngine->getCurrentPluginCount(),

  263.                               opts.processMode,

  264.                               opts.transportMode,

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

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

  267.                               fEngine->getCurrentDriverName());

  268. 

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

  270.             {

  271.                 const CarlaPluginPtr plugin = fEngine->getPluginUnchecked(i);

  272.                 CARLA_SAFE_ASSERT_CONTINUE(plugin != nullptr);

  273. 

  274.                 fEngine->callback(false, true, ENGINE_CALLBACK_PLUGIN_ADDED, i, plugin->getType(),

  275.                                   0, 0, 0.0f,

  276.                                   plugin->getName());

  277.             }

  278. 

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

  280.         }

  281.     }

  282. 

  283.     return 0;

  284. }

  285. 

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

  287.                                         const int argc, const lo_arg* const* const argv, const char* const types,

  288.                                         const lo_address source)

  289. {

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

  291.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");

  292. 

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

  294. 

  295.     if (oscData.owner == nullptr)

  296.     {

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

  298.         return 0;

  299.     }

  300. 

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

  302.     const char* const host = lo_address_get_hostname(source);

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

  304. 

  305.     if (std::strcmp(oscData.owner, host) != 0)

  306.     {

  307.         carla_stderr("OSC backend unregister failed, current owner host %s does not match requested %s",

  308.                      oscData.owner, host);

  309.         return 0;

  310.     }

  311. 

  312.     if (std::strcmp(oscData.path, path) != 0)

  313.     {

  314.         carla_stderr("OSC backend unregister failed, current owner path %s does not match requested %s",

  315.                      oscData.path, path);

  316.         return 0;

  317.     }

  318. 

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

  320.     oscData.clear();

  321.     return 0;

  322. }

  323. 

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

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

  326. {

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

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

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

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

  331. 

  332.     if (fControlDataTCP.owner == nullptr)

  333.     {

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

  335.         return 0;

  336.     }

  337. 

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

  339.     bool ok;

  340. 

  341. #define CARLA_SAFE_ASSERT_RETURN_OSC_ERR(cond) \

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

  343. 

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

  345.     {

  346.         ok = true;

  347.         fEngine->clearXruns();

  348.     }

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

  350.     {

  351.         ok = true;

  352.         fEngine->setActionCanceled(true);

  353.     }

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

  355.     {

  356.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 6);

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

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

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

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

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

  362. 

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

  364. 

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

  366.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupA >= 0);

  367. 

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

  369.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(portA >= 0);

  370. 

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

  372.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupB >= 0);

  373. 

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

  375.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(portB >= 0);

  376. 

  377.         ok = fEngine->patchbayConnect(external,

  378.                                       static_cast<uint32_t>(groupA),

  379.                                       static_cast<uint32_t>(portA),

  380.                                       static_cast<uint32_t>(groupB),

  381.                                       static_cast<uint32_t>(portB));

  382.     }

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

  384.     {

  385.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  388. 

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

  390. 

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

  392.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(connectionId >= 0);

  393. 

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

  395.     }

  396.     else if (std::strcmp(method, "patchbay_set_group_pos") == 0)

  397.     {

  398.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 7);

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

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

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

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

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

  404.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(types[6] == 'i');

  405. 

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

  407. 

  408.         const int32_t groupId = argv[2]->i;

  409.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupId >= 0);

  410. 

  411.         ok = fEngine->patchbaySetGroupPos(true, false,

  412.                                           external, static_cast<uint32_t>(groupId),

  413.                                           argv[3]->i, argv[4]->i, argv[5]->i, argv[6]->i);

  414.     }

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

  416.     {

  417.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  419. 

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

  421. 

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

  423.     }

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

  425.     {

  426.         ok = true;

  427.         fEngine->transportPlay();

  428.     }

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

  430.     {

  431.         ok = true;

  432.         fEngine->transportPause();

  433.     }

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

  435.     {

  436.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  438. 

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

  440.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(bpm >= 0.0);

  441. 

  442.         ok = true;

  443.         fEngine->transportBPM(bpm);

  444.     }

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

  446.     {

  447.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  448. 

  449.         uint64_t frame;

  450. 

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

  452.         {

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

  454.             CARLA_SAFE_ASSERT_RETURN_OSC_ERR(i >= 0);

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

  456.         }

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

  458.         {

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

  460.             CARLA_SAFE_ASSERT_RETURN_OSC_ERR(h >= 0);

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

  462.         }

  463.         else

  464.         {

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

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

  467.             return 0;

  468.         }

  469. 

  470.         ok = true;

  471.         fEngine->transportRelocate(frame);

  472.     }

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

  474.     {

  475.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 8);

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

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

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

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

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

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

  482. 

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

  484.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(btype >= 0);

  485. 

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

  487.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(ptype >= 0);

  488. 

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

  490.         switch (ptype)

  491.         {

  492.         case PLUGIN_INTERNAL:

  493.         case PLUGIN_LV2:

  494.         case PLUGIN_SF2:

  495.         case PLUGIN_SFZ:

  496.         case PLUGIN_JACK:

  497.             btype = BINARY_NATIVE;

  498.             break;

  499.         }

  500. 

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

  502. 

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

  504.             filename = nullptr;

  505. 

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

  507. 

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

  509.             name = nullptr;

  510. 

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

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

  513. 

  514.         int64_t uniqueId;

  515. 

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

  517.         {

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

  519.         }

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

  521.         {

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

  523.         }

  524.         else

  525.         {

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

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

  528.             return 0;

  529.         }

  530. 

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

  532.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(options >= 0);

  533. 

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

  535.                                 static_cast<PluginType>(ptype),

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

  537.     }

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

  539.     {

  540.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  542. 

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

  544.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  545. 

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

  547.     }

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

  549.     {

  550.         ok = fEngine->removeAllPlugins();

  551.     }

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

  553.     {

  554.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  557. 

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

  559.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  560. 

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

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

  563. 

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

  565.     }

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

  567.     {

  568.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  570. 

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

  572.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  573. 

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

  575.     }

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

  577.     {

  578.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  580. 

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

  582.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  583. 

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

  585.     }

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

  587.     {

  588.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  591. 

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

  593.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(idA >= 0);

  594. 

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

  596.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(idB >= 0);

  597. 

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

  599.     }

  600.     else

  601.     {

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

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

  604.         return 0;

  605.     }

  606. 

  607. #undef CARLA_SAFE_ASSERT_RETURN_OSC_ERR

  608. 

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

  610.     return 0;

  611. }

  612. 

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

  614. 

  615. int CarlaEngineOsc::handleMsgSetActive(CARLA_ENGINE_OSC_HANDLE_ARGS)

  616. {

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

  618.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  619. 

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

  621. 

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

  623.     return 0;

  624. }

  625. 

  626. int CarlaEngineOsc::handleMsgSetDryWet(CARLA_ENGINE_OSC_HANDLE_ARGS)

  627. {

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

  629.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  630. 

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

  632. 

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

  634.     return 0;

  635. }

  636. 

  637. int CarlaEngineOsc::handleMsgSetVolume(CARLA_ENGINE_OSC_HANDLE_ARGS)

  638. {

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

  640.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  641. 

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

  643. 

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

  645.     return 0;

  646. }

  647. 

  648. int CarlaEngineOsc::handleMsgSetBalanceLeft(CARLA_ENGINE_OSC_HANDLE_ARGS)

  649. {

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

  651.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  652. 

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

  654. 

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

  656.     return 0;

  657. }

  658. 

  659. int CarlaEngineOsc::handleMsgSetBalanceRight(CARLA_ENGINE_OSC_HANDLE_ARGS)

  660. {

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

  662.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  663. 

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

  665. 

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

  667.     return 0;

  668. }

  669. 

  670. int CarlaEngineOsc::handleMsgSetPanning(CARLA_ENGINE_OSC_HANDLE_ARGS)

  671. {

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

  673.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  674. 

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

  676. 

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

  678.     return 0;

  679. }

  680. 

  681. int CarlaEngineOsc::handleMsgSetParameterValue(CARLA_ENGINE_OSC_HANDLE_ARGS)

  682. {

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

  684.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "if");

  685. 

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

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

  688. 

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

  690. 

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

  692.     return 0;

  693. }

  694. 

  695. int CarlaEngineOsc::handleMsgSetParameterMappedControlIndex(CARLA_ENGINE_OSC_HANDLE_ARGS)

  696. {

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

  698.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  699. 

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

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

  702. 

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

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

  705. 

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

  707.     return 0;

  708. }

  709. 

  710. int CarlaEngineOsc::handleMsgSetParameterMappedRange(CARLA_ENGINE_OSC_HANDLE_ARGS)

  711. {

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

  713.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "iff");

  714. 

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

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

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

  718. 

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

  720. 

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

  722.     return 0;

  723. }

  724. 

  725. int CarlaEngineOsc::handleMsgSetParameterMidiChannel(CARLA_ENGINE_OSC_HANDLE_ARGS)

  726. {

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

  728.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  729. 

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

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

  732. 

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

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

  735. 

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

  737.     return 0;

  738. }

  739. 

  740. int CarlaEngineOsc::handleMsgSetProgram(CARLA_ENGINE_OSC_HANDLE_ARGS)

  741. {

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

  743.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  744. 

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

  746. 

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

  748. 

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

  750.     return 0;

  751. }

  752. 

  753. int CarlaEngineOsc::handleMsgSetMidiProgram(CARLA_ENGINE_OSC_HANDLE_ARGS)

  754. {

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

  756.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  757. 

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

  759. 

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

  761. 

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

  763.     return 0;

  764. }

  765. 

  766. int CarlaEngineOsc::handleMsgNoteOn(CARLA_ENGINE_OSC_HANDLE_ARGS)

  767. {

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

  769.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(3, "iii");

  770. 

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

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

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

  774. 

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

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

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

  778. 

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

  780.     return 0;

  781. }

  782. 

  783. int CarlaEngineOsc::handleMsgNoteOff(CARLA_ENGINE_OSC_HANDLE_ARGS)

  784. {

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

  786.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  787. 

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

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

  790. 

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

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

  793. 

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

  795.     return 0;

  796. }

  797. 

  798. // -----------------------------------------------------------------------

  799. 

  800. CARLA_BACKEND_END_NAMESPACE

  801. 

  802. #endif // HAVE_LIBLO