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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);

  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, '/'))

  77.         {

  78.             bytesAfterName = static_cast<std::size_t>(slash - path) + 1U;

  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. 

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

  99.     uint pluginId = 0;

  100.     std::size_t offset;

  101. 

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

  103.     {

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

  105.         return 1;

  106.     }

  107. 

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

  109.     {

  110.         if (std::isdigit(path[bytesAfterName+5]))

  111.         {

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

  113.                           path+(bytesAfterName+1));

  114.             return 1;

  115.         }

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

  117.         {

  118.             // 3 digits, /xyz/method

  119.             offset    = 6;

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

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

  122.             pluginId += uint(path[bytesAfterName+4]-'0');

  123.         }

  124.         else

  125.         {

  126.             // 2 digits, /xy/method

  127.             offset    = 5;

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

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

  130.         }

  131.     }

  132.     else

  133.     {

  134.         // single digit, /x/method

  135.         offset    = 4;

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

  137.     }

  138. 

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

  140.     {

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

  142.         return 0;

  143.     }

  144. 

  145.     // Get plugin

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

  147. 

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

  149.     {

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

  151.         return 0;

  152.     }

  153. 

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

  155.     char method[48];

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

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

  158. 

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

  160.     {

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

  162.         return 0;

  163.     }

  164. 

  165.     // Internal methods

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  202. 

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

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

  205.     return 0;

  206. }

  207. 

  208. // -----------------------------------------------------------------------

  209. 

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

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

  212.                                       const lo_address source)

  213. {

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

  215.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");

  216. 

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

  218. 

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

  220. 

  221.     if (oscData.owner != nullptr)

  222.     {

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

  224. 

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

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

  227.         CARLA_SAFE_ASSERT_RETURN(pathlen < 32, 0);

  228. 

  229.         char targetPath[pathlen+12];

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

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

  232. 

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

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

  235. 

  236.         free(path);

  237.     }

  238.     else

  239.     {

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

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

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

  243. 

  244.         oscData.owner  = carla_strdup_safe(host);

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

  246.         oscData.target = target;

  247. 

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

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

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

  251.         free(targeturl);

  252.         free(port);

  253. 

  254.         if (isTCP)

  255.         {

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

  257. 

  258.             fEngine->callback(false, true,

  259.                               ENGINE_CALLBACK_ENGINE_STARTED,

  260.                               fEngine->getCurrentPluginCount(),

  261.                               opts.processMode,

  262.                               opts.transportMode,

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

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

  265.                               fEngine->getCurrentDriverName());

  266. 

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

  268.             {

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

  270.                 CARLA_SAFE_ASSERT_CONTINUE(plugin != nullptr);

  271. 

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

  273.             }

  274. 

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

  276.         }

  277.     }

  278. 

  279.     return 0;

  280. }

  281. 

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

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

  284. {

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

  286.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");

  287. 

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

  289. 

  290.     if (oscData.owner == nullptr)

  291.     {

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

  293.         return 0;

  294.     }

  295. 

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

  297. 

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

  299.     {

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

  301.         oscData.clear();

  302.         return 0;

  303.     }

  304. 

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

  306.     return 0;

  307. }

  308. 

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

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

  311. {

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

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

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

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

  316. 

  317.     if (fControlDataTCP.owner == nullptr)

  318.     {

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

  320.         return 0;

  321.     }

  322. 

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

  324.     bool ok;

  325. 

  326. #define CARLA_SAFE_ASSERT_RETURN_OSC_ERR(cond) \

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

  328. 

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

  330.     {

  331.         ok = true;

  332.         fEngine->clearXruns();

  333.     }

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

  335.     {

  336.         ok = true;

  337.         fEngine->setActionCanceled(true);

  338.     }

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

  340.     {

  341.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 6);

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

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

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

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

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

  347. 

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

  349. 

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

  351.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupA >= 0);

  352. 

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

  354.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(portA >= 0);

  355. 

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

  357.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupB >= 0);

  358. 

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

  360.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(portB >= 0);

  361. 

  362.         ok = fEngine->patchbayConnect(external,

  363.                                       static_cast<uint32_t>(groupA),

  364.                                       static_cast<uint32_t>(portA),

  365.                                       static_cast<uint32_t>(groupB),

  366.                                       static_cast<uint32_t>(portB));

  367.     }

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

  369.     {

  370.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  373. 

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

  375. 

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

  377.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(connectionId >= 0);

  378. 

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

  380.     }

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

  382.     {

  383.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 7);

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

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

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

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

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

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

  390. 

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

  392. 

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

  394.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(groupId >= 0);

  395. 

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

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

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

  399.     }

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

  401.     {

  402.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  404. 

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

  406. 

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

  408.     }

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

  410.     {

  411.         ok = true;

  412.         fEngine->transportPlay();

  413.     }

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

  415.     {

  416.         ok = true;

  417.         fEngine->transportPause();

  418.     }

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

  420.     {

  421.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  423. 

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

  425.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(bpm >= 0.0);

  426. 

  427.         ok = true;

  428.         fEngine->transportBPM(bpm);

  429.     }

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

  431.     {

  432.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

  433. 

  434.         uint64_t frame;

  435. 

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

  437.         {

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

  439.             CARLA_SAFE_ASSERT_RETURN_OSC_ERR(i >= 0);

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

  441.         }

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

  443.         {

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

  445.             CARLA_SAFE_ASSERT_RETURN_OSC_ERR(h >= 0);

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

  447.         }

  448.         else

  449.         {

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

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

  452.             return 0;

  453.         }

  454. 

  455.         ok = true;

  456.         fEngine->transportRelocate(frame);

  457.     }

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

  459.     {

  460.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 8);

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

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

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

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

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

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

  467. 

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

  469.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(btype >= 0);

  470. 

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

  472.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(ptype >= 0);

  473. 

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

  475.         switch (ptype)

  476.         {

  477.         case PLUGIN_INTERNAL:

  478.         case PLUGIN_LV2:

  479.         case PLUGIN_SF2:

  480.         case PLUGIN_SFZ:

  481.         case PLUGIN_JACK:

  482.             btype = BINARY_NATIVE;

  483.             break;

  484.         }

  485. 

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

  487. 

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

  489.             filename = nullptr;

  490. 

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

  492. 

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

  494.             name = nullptr;

  495. 

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

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

  498. 

  499.         int64_t uniqueId;

  500. 

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

  502.         {

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

  504.         }

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

  506.         {

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

  508.         }

  509.         else

  510.         {

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

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

  513.             return 0;

  514.         }

  515. 

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

  517.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(options >= 0);

  518. 

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

  520.                                 static_cast<PluginType>(ptype),

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

  522.     }

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

  524.     {

  525.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  527. 

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

  529.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  530. 

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

  532.     }

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

  534.     {

  535.         ok = fEngine->removeAllPlugins();

  536.     }

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

  538.     {

  539.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  542. 

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

  544.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  545. 

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

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

  548. 

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

  550.     }

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

  552.     {

  553.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  555. 

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

  557.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  558. 

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

  560.     }

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

  562.     {

  563.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 2);

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

  565. 

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

  567.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(id >= 0);

  568. 

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

  570.     }

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

  572.     {

  573.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(argc == 3);

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

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

  576. 

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

  578.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(idA >= 0);

  579. 

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

  581.         CARLA_SAFE_ASSERT_RETURN_OSC_ERR(idB >= 0);

  582. 

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

  584.     }

  585.     else

  586.     {

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

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

  589.         return 0;

  590.     }

  591. 

  592. #undef CARLA_SAFE_ASSERT_RETURN_OSC_ERR

  593. 

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

  595.     return 0;

  596. }

  597. 

  598. // -----------------------------------------------------------------------

  599. 

  600. int CarlaEngineOsc::handleMsgSetActive(CARLA_ENGINE_OSC_HANDLE_ARGS)

  601. {

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

  603.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  604. 

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

  606. 

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

  608.     return 0;

  609. }

  610. 

  611. int CarlaEngineOsc::handleMsgSetDryWet(CARLA_ENGINE_OSC_HANDLE_ARGS)

  612. {

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

  614.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  615. 

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

  617. 

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

  619.     return 0;

  620. }

  621. 

  622. int CarlaEngineOsc::handleMsgSetVolume(CARLA_ENGINE_OSC_HANDLE_ARGS)

  623. {

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

  625.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  626. 

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

  628. 

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

  630.     return 0;

  631. }

  632. 

  633. int CarlaEngineOsc::handleMsgSetBalanceLeft(CARLA_ENGINE_OSC_HANDLE_ARGS)

  634. {

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

  636.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  637. 

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

  639. 

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

  641.     return 0;

  642. }

  643. 

  644. int CarlaEngineOsc::handleMsgSetBalanceRight(CARLA_ENGINE_OSC_HANDLE_ARGS)

  645. {

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

  647.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  648. 

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

  650. 

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

  652.     return 0;

  653. }

  654. 

  655. int CarlaEngineOsc::handleMsgSetPanning(CARLA_ENGINE_OSC_HANDLE_ARGS)

  656. {

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

  658.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");

  659. 

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

  661. 

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

  663.     return 0;

  664. }

  665. 

  666. int CarlaEngineOsc::handleMsgSetParameterValue(CARLA_ENGINE_OSC_HANDLE_ARGS)

  667. {

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

  669.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "if");

  670. 

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

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

  673. 

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

  675. 

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

  677.     return 0;

  678. }

  679. 

  680. int CarlaEngineOsc::handleMsgSetParameterMappedControlIndex(CARLA_ENGINE_OSC_HANDLE_ARGS)

  681. {

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

  683.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  684. 

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

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

  687. 

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

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

  690. 

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

  692.     return 0;

  693. }

  694. 

  695. int CarlaEngineOsc::handleMsgSetParameterMappedRange(CARLA_ENGINE_OSC_HANDLE_ARGS)

  696. {

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

  698.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "iff");

  699. 

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

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

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

  703. 

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

  705. 

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

  707.     return 0;

  708. }

  709. 

  710. int CarlaEngineOsc::handleMsgSetParameterMidiChannel(CARLA_ENGINE_OSC_HANDLE_ARGS)

  711. {

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

  713.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  714. 

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

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

  717. 

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

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

  720. 

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

  722.     return 0;

  723. }

  724. 

  725. int CarlaEngineOsc::handleMsgSetProgram(CARLA_ENGINE_OSC_HANDLE_ARGS)

  726. {

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

  728.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  729. 

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

  731. 

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

  733. 

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

  735.     return 0;

  736. }

  737. 

  738. int CarlaEngineOsc::handleMsgSetMidiProgram(CARLA_ENGINE_OSC_HANDLE_ARGS)

  739. {

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

  741.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");

  742. 

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

  744. 

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

  746. 

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

  748.     return 0;

  749. }

  750. 

  751. int CarlaEngineOsc::handleMsgNoteOn(CARLA_ENGINE_OSC_HANDLE_ARGS)

  752. {

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

  754.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(3, "iii");

  755. 

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

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

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

  759. 

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

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

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

  763. 

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

  765.     return 0;

  766. }

  767. 

  768. int CarlaEngineOsc::handleMsgNoteOff(CARLA_ENGINE_OSC_HANDLE_ARGS)

  769. {

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

  771.     CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");

  772. 

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

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

  775. 

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

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

  778. 

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

  780.     return 0;

  781. }

  782. 

  783. // -----------------------------------------------------------------------

  784. 

  785. CARLA_BACKEND_END_NAMESPACE

  786. 

  787. #endif // HAVE_LIBLO