Audio plugin host https://kx.studio/carla
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  1. /*
  2. * Carla Plugin Host
  3. * Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>
  4. *
  5. * This program is free software; you can redistribute it and/or
  6. * modify it under the terms of the GNU General Public License as
  7. * published by the Free Software Foundation; either version 2 of
  8. * the License, or any later version.
  9. *
  10. * This program is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. *
  15. * For a full copy of the GNU General Public License see the doc/GPL.txt file.
  16. */
  17. #include "CarlaEngine.hpp"
  18. #include "CarlaEngineOsc.hpp"
  19. #include "CarlaPlugin.hpp"
  20. #ifndef BUILD_BRIDGE
  21. # include "CarlaBridgeUtils.hpp"
  22. #endif
  23. #include "CarlaMIDI.h"
  24. #include <cctype>
  25. CARLA_BACKEND_START_NAMESPACE
  26. #ifndef BUILD_BRIDGE
  27. // -------------------------------------------------------------------
  28. // Bridge Helper, defined in BridgePlugin.cpp
  29. extern int CarlaPluginSetOscBridgeInfo(CarlaPlugin* const plugin, const PluginBridgeOscInfoType type,
  30. const int argc, const lo_arg* const* const argv, const char* const types);
  31. #endif
  32. // -----------------------------------------------------------------------
  33. CarlaEngineOsc::CarlaEngineOsc(CarlaEngine* const engine) noexcept
  34. : fEngine(engine),
  35. #ifndef BUILD_BRIDGE
  36. fControlData(),
  37. #endif
  38. fName(),
  39. fServerPathTCP(),
  40. fServerPathUDP(),
  41. fServerTCP(nullptr),
  42. fServerUDP(nullptr),
  43. leakDetector()
  44. {
  45. CARLA_SAFE_ASSERT(engine != nullptr);
  46. carla_debug("CarlaEngineOsc::CarlaEngineOsc(%p)", engine);
  47. }
  48. CarlaEngineOsc::~CarlaEngineOsc() noexcept
  49. {
  50. CARLA_SAFE_ASSERT(fName.isEmpty());
  51. CARLA_SAFE_ASSERT(fServerPathTCP.isEmpty());
  52. CARLA_SAFE_ASSERT(fServerPathUDP.isEmpty());
  53. CARLA_SAFE_ASSERT(fServerTCP == nullptr);
  54. CARLA_SAFE_ASSERT(fServerUDP == nullptr);
  55. carla_debug("CarlaEngineOsc::~CarlaEngineOsc()");
  56. }
  57. // -----------------------------------------------------------------------
  58. void CarlaEngineOsc::init(const char* const name) noexcept
  59. {
  60. CARLA_SAFE_ASSERT_RETURN(fName.isEmpty(),);
  61. CARLA_SAFE_ASSERT_RETURN(fServerPathTCP.isEmpty(),);
  62. CARLA_SAFE_ASSERT_RETURN(fServerPathUDP.isEmpty(),);
  63. CARLA_SAFE_ASSERT_RETURN(fServerTCP == nullptr,);
  64. CARLA_SAFE_ASSERT_RETURN(fServerUDP == nullptr,);
  65. CARLA_SAFE_ASSERT_RETURN(name != nullptr && name[0] != '\0',);
  66. carla_debug("CarlaEngineOsc::init(\"%s\")", name);
  67. fName = name;
  68. fName.toBasic();
  69. fServerTCP = lo_server_new_with_proto(nullptr, LO_TCP, osc_error_handler_TCP);
  70. if (fServerTCP != nullptr)
  71. {
  72. if (char* const tmpServerPathTCP = lo_server_get_url(fServerTCP))
  73. {
  74. fServerPathTCP = tmpServerPathTCP;
  75. fServerPathTCP += fName;
  76. std::free(tmpServerPathTCP);
  77. }
  78. lo_server_add_method(fServerTCP, nullptr, nullptr, osc_message_handler_TCP, this);
  79. }
  80. fServerUDP = lo_server_new_with_proto(nullptr, LO_UDP, osc_error_handler_UDP);
  81. if (fServerUDP != nullptr)
  82. {
  83. if (char* const tmpServerPathUDP = lo_server_get_url(fServerUDP))
  84. {
  85. fServerPathUDP = tmpServerPathUDP;
  86. fServerPathUDP += fName;
  87. std::free(tmpServerPathUDP);
  88. }
  89. lo_server_add_method(fServerUDP, nullptr, nullptr, osc_message_handler_UDP, this);
  90. }
  91. CARLA_SAFE_ASSERT(fName.isNotEmpty());
  92. CARLA_SAFE_ASSERT(fServerPathTCP.isNotEmpty());
  93. CARLA_SAFE_ASSERT(fServerPathUDP.isNotEmpty());
  94. CARLA_SAFE_ASSERT(fServerTCP != nullptr);
  95. CARLA_SAFE_ASSERT(fServerUDP != nullptr);
  96. }
  97. void CarlaEngineOsc::idle() const noexcept
  98. {
  99. if (fServerTCP != nullptr)
  100. {
  101. for (;;)
  102. {
  103. try {
  104. if (lo_server_recv_noblock(fServerTCP, 0) == 0)
  105. break;
  106. } CARLA_SAFE_EXCEPTION_CONTINUE("OSC idle TCP")
  107. }
  108. }
  109. if (fServerUDP != nullptr)
  110. {
  111. for (;;)
  112. {
  113. try {
  114. if (lo_server_recv_noblock(fServerUDP, 0) == 0)
  115. break;
  116. } CARLA_SAFE_EXCEPTION_CONTINUE("OSC idle UDP")
  117. }
  118. }
  119. }
  120. void CarlaEngineOsc::close() noexcept
  121. {
  122. CARLA_SAFE_ASSERT(fName.isNotEmpty());
  123. CARLA_SAFE_ASSERT(fServerPathTCP.isNotEmpty());
  124. CARLA_SAFE_ASSERT(fServerPathUDP.isNotEmpty());
  125. CARLA_SAFE_ASSERT(fServerTCP != nullptr);
  126. CARLA_SAFE_ASSERT(fServerUDP != nullptr);
  127. carla_debug("CarlaEngineOsc::close()");
  128. fName.clear();
  129. if (fServerTCP != nullptr)
  130. {
  131. lo_server_del_method(fServerTCP, nullptr, nullptr);
  132. lo_server_free(fServerTCP);
  133. fServerTCP = nullptr;
  134. }
  135. if (fServerUDP != nullptr)
  136. {
  137. lo_server_del_method(fServerUDP, nullptr, nullptr);
  138. lo_server_free(fServerUDP);
  139. fServerUDP = nullptr;
  140. }
  141. fServerPathTCP.clear();
  142. fServerPathUDP.clear();
  143. #ifndef BUILD_BRIDGE
  144. fControlData.clear();
  145. #endif
  146. }
  147. // -----------------------------------------------------------------------
  148. 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)
  149. {
  150. CARLA_SAFE_ASSERT_RETURN(fName.isNotEmpty(), 1);
  151. CARLA_SAFE_ASSERT_RETURN(path != nullptr && path[0] != '\0', 1);
  152. #ifdef DEBUG
  153. if (std::strstr(path, "/bridge_pong") == nullptr) {
  154. carla_debug("CarlaEngineOsc::handleMessage(%s, \"%s\", %i, %p, \"%s\", %p)", bool2str(isTCP), path, argc, argv, types, msg);
  155. }
  156. #endif
  157. //if (isTCP)
  158. {
  159. CARLA_SAFE_ASSERT_RETURN(fServerPathTCP.isNotEmpty(), 1);
  160. CARLA_SAFE_ASSERT_RETURN(fServerTCP != nullptr, 1);
  161. }
  162. //else
  163. {
  164. CARLA_SAFE_ASSERT_RETURN(fServerPathUDP.isNotEmpty(), 1);
  165. CARLA_SAFE_ASSERT_RETURN(fServerUDP != nullptr, 1);
  166. }
  167. #ifndef BUILD_BRIDGE
  168. // Initial path check
  169. if (std::strcmp(path, "/register") == 0)
  170. {
  171. const lo_address source(lo_message_get_source(msg));
  172. return handleMsgRegister(isTCP, argc, argv, types, source);
  173. }
  174. if (std::strcmp(path, "/unregister") == 0)
  175. {
  176. return handleMsgUnregister();
  177. }
  178. #endif
  179. const size_t nameSize(fName.length());
  180. // Check if message is for this client
  181. if (std::strlen(path) <= nameSize || std::strncmp(path+1, fName, nameSize) != 0)
  182. {
  183. carla_stderr("CarlaEngineOsc::handleMessage() - message not for this client -> '%s' != '/%s/'", path, fName.buffer());
  184. return 1;
  185. }
  186. // Get plugin id from path, "/carla/23/method" -> 23
  187. uint pluginId = 0;
  188. size_t offset;
  189. if (std::isdigit(path[nameSize+2]))
  190. {
  191. if (std::isdigit(path[nameSize+3]))
  192. {
  193. if (std::isdigit(path[nameSize+5]))
  194. {
  195. carla_stderr2("CarlaEngineOsc::handleMessage() - invalid plugin id, over 999? (value: \"%s\")", path+(nameSize+1));
  196. return 1;
  197. }
  198. else if (std::isdigit(path[nameSize+4]))
  199. {
  200. // 3 digits, /xyz/method
  201. offset = 6;
  202. pluginId += uint(path[nameSize+2]-'0')*100;
  203. pluginId += uint(path[nameSize+3]-'0')*10;
  204. pluginId += uint(path[nameSize+4]-'0');
  205. }
  206. else
  207. {
  208. // 2 digits, /xy/method
  209. offset = 5;
  210. pluginId += uint(path[nameSize+2]-'0')*10;
  211. pluginId += uint(path[nameSize+3]-'0');
  212. }
  213. }
  214. else
  215. {
  216. // single digit, /x/method
  217. offset = 4;
  218. pluginId += uint(path[nameSize+2]-'0');
  219. }
  220. }
  221. else
  222. {
  223. carla_stderr("CarlaEngineOsc::handleMessage() - invalid message '%s'", path);
  224. return 1;
  225. }
  226. if (pluginId > fEngine->getCurrentPluginCount())
  227. {
  228. carla_stderr("CarlaEngineOsc::handleMessage() - failed to get plugin, wrong id '%i'", pluginId);
  229. return 0;
  230. }
  231. // Get plugin
  232. CarlaPlugin* const plugin(fEngine->getPluginUnchecked(pluginId));
  233. if (plugin == nullptr || plugin->getId() != pluginId)
  234. {
  235. carla_stderr("CarlaEngineOsc::handleMessage() - invalid plugin id '%i', probably has been removed (path: '%s')", pluginId, path);
  236. return 0;
  237. }
  238. // Get method from path, "/Carla/i/method" -> "method"
  239. char method[32+1];
  240. method[32] = '\0';
  241. std::strncpy(method, path + (nameSize + offset), 32);
  242. if (method[0] == '\0')
  243. {
  244. carla_stderr("CarlaEngineOsc::handleMessage(%s, \"%s\", ...) - received message without method", bool2str(isTCP), path);
  245. return 0;
  246. }
  247. // Common OSC methods (all bridges)
  248. if (std::strcmp(method, "update") == 0)
  249. {
  250. const lo_address source(lo_message_get_source(msg));
  251. return handleMsgUpdate(plugin, argc, argv, types, source);
  252. }
  253. if (std::strcmp(method, "exiting") == 0)
  254. return handleMsgExiting(plugin);
  255. #ifndef BUILD_BRIDGE
  256. // Common OSC methods (DSSI and bridge UIs)
  257. if (std::strcmp(method, "configure") == 0)
  258. return handleMsgConfigure(plugin, argc, argv, types);
  259. if (std::strcmp(method, "control") == 0)
  260. return handleMsgControl(plugin, argc, argv, types);
  261. if (std::strcmp(method, "program") == 0)
  262. return handleMsgProgram(plugin, argc, argv, types);
  263. if (std::strcmp(method, "midi") == 0)
  264. return handleMsgMidi(plugin, argc, argv, types);
  265. // Internal methods
  266. if (std::strcmp(method, "set_active") == 0)
  267. return handleMsgSetActive(plugin, argc, argv, types);
  268. if (std::strcmp(method, "set_drywet") == 0)
  269. return handleMsgSetDryWet(plugin, argc, argv, types);
  270. if (std::strcmp(method, "set_volume") == 0)
  271. return handleMsgSetVolume(plugin, argc, argv, types);
  272. if (std::strcmp(method, "set_balance_left") == 0)
  273. return handleMsgSetBalanceLeft(plugin, argc, argv, types);
  274. if (std::strcmp(method, "set_balance_right") == 0)
  275. return handleMsgSetBalanceRight(plugin, argc, argv, types);
  276. if (std::strcmp(method, "set_panning") == 0)
  277. return handleMsgSetPanning(plugin, argc, argv, types);
  278. if (std::strcmp(method, "set_parameter_value") == 0)
  279. return handleMsgSetParameterValue(plugin, argc, argv, types);
  280. if (std::strcmp(method, "set_parameter_midi_cc") == 0)
  281. return handleMsgSetParameterMidiCC(plugin, argc, argv, types);
  282. if (std::strcmp(method, "set_parameter_midi_channel") == 0)
  283. return handleMsgSetParameterMidiChannel(plugin, argc, argv, types);
  284. if (std::strcmp(method, "set_program") == 0)
  285. return handleMsgSetProgram(plugin, argc, argv, types);
  286. if (std::strcmp(method, "set_midi_program") == 0)
  287. return handleMsgSetMidiProgram(plugin, argc, argv, types);
  288. if (std::strcmp(method, "note_on") == 0)
  289. return handleMsgNoteOn(plugin, argc, argv, types);
  290. if (std::strcmp(method, "note_off") == 0)
  291. return handleMsgNoteOff(plugin, argc, argv, types);
  292. // Plugin Bridges
  293. if ((plugin->getHints() & PLUGIN_IS_BRIDGE) != 0 && std::strlen(method) >= 11 && std::strncmp(method, "bridge_", 7) == 0)
  294. {
  295. const char* const bmethod(method+7);
  296. if (std::strcmp(bmethod, "pong") == 0)
  297. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscPong, argc, argv, types);
  298. if (std::strcmp(bmethod, "plugin_info1") == 0)
  299. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscPluginInfo1, argc, argv, types);
  300. if (std::strcmp(bmethod, "plugin_info2") == 0)
  301. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscPluginInfo2, argc, argv, types);
  302. if (std::strcmp(bmethod, "audio_count") == 0)
  303. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscAudioCount, argc, argv, types);
  304. if (std::strcmp(bmethod, "midi_count") == 0)
  305. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscMidiCount, argc, argv, types);
  306. if (std::strcmp(bmethod, "parameter_count") == 0)
  307. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscParameterCount, argc, argv, types);
  308. if (std::strcmp(bmethod, "program_count") == 0)
  309. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscProgramCount, argc, argv, types);
  310. if (std::strcmp(bmethod, "midi_program_count") == 0)
  311. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscMidiProgramCount, argc, argv, types);
  312. if (std::strcmp(bmethod, "parameter_data1") == 0)
  313. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscParameterData1, argc, argv, types);
  314. if (std::strcmp(bmethod, "parameter_data2") == 0)
  315. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscParameterData2, argc, argv, types);
  316. if (std::strcmp(bmethod, "parameter_ranges1") == 0)
  317. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscParameterRanges1, argc, argv, types);
  318. if (std::strcmp(bmethod, "parameter_ranges2") == 0)
  319. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscParameterRanges2, argc, argv, types);
  320. if (std::strcmp(bmethod, "parameter_value") == 0)
  321. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscParameterValue, argc, argv, types);
  322. if (std::strcmp(bmethod, "default_value") == 0)
  323. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscDefaultValue, argc, argv, types);
  324. if (std::strcmp(bmethod, "current_program") == 0)
  325. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscCurrentProgram, argc, argv, types);
  326. if (std::strcmp(bmethod, "current_midi_program") == 0)
  327. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscCurrentMidiProgram, argc, argv, types);
  328. if (std::strcmp(bmethod, "program_name") == 0)
  329. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscProgramName, argc, argv, types);
  330. if (std::strcmp(bmethod, "midi_program_data") == 0)
  331. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscMidiProgramData, argc, argv, types);
  332. if (std::strcmp(bmethod, "configure") == 0)
  333. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscConfigure, argc, argv, types);
  334. if (std::strcmp(bmethod, "set_custom_data") == 0)
  335. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscSetCustomData, argc, argv, types);
  336. if (std::strcmp(bmethod, "set_chunk_data_file") == 0)
  337. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscSetChunkDataFile, argc, argv, types);
  338. if (std::strcmp(bmethod, "latency") == 0)
  339. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscLatency, argc, argv, types);
  340. if (std::strcmp(bmethod, "ready") == 0)
  341. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscReady, argc, argv, types);
  342. if (std::strcmp(bmethod, "error") == 0)
  343. return CarlaPluginSetOscBridgeInfo(plugin, kPluginBridgeOscError, argc, argv, types);
  344. }
  345. // Plugin-specific methods
  346. if (std::strcmp(method, "lv2_atom_transfer") == 0)
  347. return handleMsgLv2AtomTransfer(plugin, argc, argv, types);
  348. if (std::strcmp(method, "lv2_urid_map") == 0)
  349. return handleMsgLv2UridMap(plugin, argc, argv, types);
  350. #endif
  351. carla_stderr("CarlaEngineOsc::handleMessage() - unsupported OSC method '%s'", method);
  352. return 1;
  353. }
  354. // -----------------------------------------------------------------------
  355. int CarlaEngineOsc::handleMsgUpdate(CARLA_ENGINE_OSC_HANDLE_ARGS2, const lo_address source)
  356. {
  357. carla_debug("CarlaEngineOsc::handleMsgUpdate()");
  358. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");
  359. const char* const url = (const char*)&argv[0]->s;
  360. plugin->updateOscData(source, url);
  361. return 0;
  362. }
  363. int CarlaEngineOsc::handleMsgExiting(CARLA_ENGINE_OSC_HANDLE_ARGS1)
  364. {
  365. carla_debug("CarlaEngineOsc::handleMsgExiting()");
  366. // TODO - check for non-UIs (dssi-vst) and set to -1 instead
  367. fEngine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, plugin->getId(), 0, 0, 0.0f, nullptr);
  368. plugin->showCustomUI(false);
  369. return 0;
  370. }
  371. // -----------------------------------------------------------------------
  372. #ifndef BUILD_BRIDGE
  373. int CarlaEngineOsc::handleMsgRegister(const bool isTCP, const int argc, const lo_arg* const* const argv, const char* const types, const lo_address source)
  374. {
  375. carla_debug("CarlaEngineOsc::handleMsgRegister()");
  376. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "s");
  377. if (fControlData.path != nullptr)
  378. {
  379. carla_stderr("CarlaEngineOsc::handleMsgRegister() - OSC backend already registered to %s", fControlData.path);
  380. return 1;
  381. }
  382. const char* const url = &argv[0]->s;
  383. carla_debug("CarlaEngineOsc::handleMsgRegister() - OSC backend registered to %s", url);
  384. {
  385. const char* host = lo_address_get_hostname(source);
  386. const char* port = lo_address_get_port(source);
  387. fControlData.source = lo_address_new_with_proto(isTCP ? LO_TCP : LO_UDP, host, port);
  388. }
  389. {
  390. char* host = lo_url_get_hostname(url);
  391. char* port = lo_url_get_port(url);
  392. fControlData.path = carla_strdup_free(lo_url_get_path(url));
  393. fControlData.target = lo_address_new_with_proto(isTCP ? LO_TCP : LO_UDP, host, port);
  394. std::free(host);
  395. std::free(port);
  396. }
  397. for (uint i=0, count=fEngine->getCurrentPluginCount(); i < count; ++i)
  398. {
  399. CarlaPlugin* const plugin(fEngine->getPluginUnchecked(i));
  400. if (plugin != nullptr && plugin->isEnabled())
  401. plugin->registerToOscClient();
  402. }
  403. return 0;
  404. }
  405. int CarlaEngineOsc::handleMsgUnregister()
  406. {
  407. carla_debug("CarlaEngineOsc::handleMsgUnregister()");
  408. if (fControlData.path == nullptr)
  409. {
  410. carla_stderr("CarlaEngineOsc::handleMsgUnregister() - OSC backend is not registered yet");
  411. return 1;
  412. }
  413. fControlData.clear();
  414. return 0;
  415. }
  416. // -----------------------------------------------------------------------
  417. int CarlaEngineOsc::handleMsgConfigure(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  418. {
  419. carla_debug("CarlaEngineOsc::handleMsgConfigure()");
  420. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ss");
  421. const char* const key = (const char*)&argv[0]->s;
  422. const char* const value = (const char*)&argv[1]->s;
  423. plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);
  424. return 0;
  425. }
  426. int CarlaEngineOsc::handleMsgControl(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  427. {
  428. carla_debug("CarlaEngineOsc::handleMsgControl()");
  429. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "if");
  430. const int32_t rindex = argv[0]->i;
  431. const float value = argv[1]->f;
  432. plugin->setParameterValueByRealIndex(rindex, value, false, true, true);
  433. return 0;
  434. }
  435. int CarlaEngineOsc::handleMsgProgram(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  436. {
  437. carla_debug("CarlaEngineOsc::handleMsgProgram()");
  438. if (argc == 2)
  439. {
  440. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");
  441. const int32_t bank = argv[0]->i;
  442. const int32_t program = argv[1]->i;
  443. CARLA_SAFE_ASSERT_RETURN(bank >= 0, 0);
  444. CARLA_SAFE_ASSERT_RETURN(program >= 0, 0);
  445. plugin->setMidiProgramById(static_cast<uint32_t>(bank), static_cast<uint32_t>(program), false, true, true);
  446. return 0;
  447. }
  448. else
  449. {
  450. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");
  451. const int32_t program = argv[0]->i;
  452. CARLA_SAFE_ASSERT_RETURN(program >= 0, 0);
  453. CARLA_SAFE_ASSERT_RETURN(program < static_cast<int32_t>(plugin->getProgramCount()), 0);
  454. plugin->setProgram(program, false, true, true);
  455. return 0;
  456. }
  457. }
  458. int CarlaEngineOsc::handleMsgMidi(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  459. {
  460. carla_debug("CarlaEngineOsc::handleMsgMidi()");
  461. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "m");
  462. #ifdef BUILD_BRIDGE
  463. CARLA_ASSERT(false); // this should never happen
  464. return 0;
  465. // unused
  466. (void)plugin;
  467. (void)argv;
  468. #else
  469. if (plugin->getMidiInCount() == 0)
  470. {
  471. carla_stderr("CarlaEngineOsc::handleMsgMidi() - received midi when plugin has no midi inputs");
  472. return 0;
  473. }
  474. const uint8_t* const data = argv[0]->m;
  475. uint8_t status = data[1];
  476. uint8_t channel = status & 0x0F;
  477. // Fix bad note-off
  478. if (MIDI_IS_STATUS_NOTE_ON(status) && data[3] == 0)
  479. status = MIDI_STATUS_NOTE_OFF;
  480. if (MIDI_IS_STATUS_NOTE_OFF(status))
  481. {
  482. const uint8_t note = data[2];
  483. CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE, 0);
  484. plugin->sendMidiSingleNote(channel, note, 0, false, true, true);
  485. }
  486. else if (MIDI_IS_STATUS_NOTE_ON(status))
  487. {
  488. const uint8_t note = data[2];
  489. const uint8_t velo = data[3];
  490. CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE, 0);
  491. CARLA_SAFE_ASSERT_RETURN(velo < MAX_MIDI_VALUE, 0);
  492. plugin->sendMidiSingleNote(channel, note, velo, false, true, true);
  493. }
  494. return 0;
  495. #endif
  496. }
  497. // -----------------------------------------------------------------------
  498. int CarlaEngineOsc::handleMsgSetActive(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  499. {
  500. carla_debug("CarlaEngineOsc::handleMsgSetActive()");
  501. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");
  502. const bool active = (argv[0]->i != 0);
  503. plugin->setActive(active, false, true);
  504. return 0;
  505. }
  506. int CarlaEngineOsc::handleMsgSetDryWet(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  507. {
  508. carla_debug("CarlaEngineOsc::handleMsgSetDryWet()");
  509. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");
  510. const float value = argv[0]->f;
  511. plugin->setDryWet(value, false, true);
  512. return 0;
  513. }
  514. int CarlaEngineOsc::handleMsgSetVolume(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  515. {
  516. carla_debug("CarlaEngineOsc::handleMsgSetVolume()");
  517. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");
  518. const float value = argv[0]->f;
  519. plugin->setVolume(value, false, true);
  520. return 0;
  521. }
  522. int CarlaEngineOsc::handleMsgSetBalanceLeft(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  523. {
  524. carla_debug("CarlaEngineOsc::handleMsgSetBalanceLeft()");
  525. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");
  526. const float value = argv[0]->f;
  527. plugin->setBalanceLeft(value, false, true);
  528. return 0;
  529. }
  530. int CarlaEngineOsc::handleMsgSetBalanceRight(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  531. {
  532. carla_debug("CarlaEngineOsc::handleMsgSetBalanceRight()");
  533. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");
  534. const float value = argv[0]->f;
  535. plugin->setBalanceRight(value, false, true);
  536. return 0;
  537. }
  538. int CarlaEngineOsc::handleMsgSetPanning(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  539. {
  540. carla_debug("CarlaEngineOsc::handleMsgSetPanning()");
  541. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "f");
  542. const float value = argv[0]->f;
  543. plugin->setPanning(value, false, true);
  544. return 0;
  545. }
  546. int CarlaEngineOsc::handleMsgSetParameterValue(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  547. {
  548. carla_debug("CarlaEngineOsc::handleMsgSetParameterValue()");
  549. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "if");
  550. const int32_t index = argv[0]->i;
  551. const float value = argv[1]->f;
  552. CARLA_SAFE_ASSERT_RETURN(index >= 0, 0);
  553. plugin->setParameterValue(static_cast<uint32_t>(index), value, true, false, true);
  554. return 0;
  555. }
  556. int CarlaEngineOsc::handleMsgSetParameterMidiCC(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  557. {
  558. carla_debug("CarlaEngineOsc::handleMsgSetParameterMidiCC()");
  559. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");
  560. const int32_t index = argv[0]->i;
  561. const int32_t cc = argv[1]->i;
  562. CARLA_SAFE_ASSERT_RETURN(index >= 0, 0);
  563. CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc <= 0x5F, 0);
  564. plugin->setParameterMidiCC(static_cast<uint32_t>(index), static_cast<int16_t>(cc), false, true);
  565. return 0;
  566. }
  567. int CarlaEngineOsc::handleMsgSetParameterMidiChannel(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  568. {
  569. carla_debug("CarlaEngineOsc::handleMsgSetParameterMidiChannel()");
  570. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");
  571. const int32_t index = argv[0]->i;
  572. const int32_t channel = argv[1]->i;
  573. CARLA_SAFE_ASSERT_RETURN(index >= 0, 0);
  574. CARLA_SAFE_ASSERT_RETURN(channel >= 0 && channel < MAX_MIDI_CHANNELS, 0);
  575. plugin->setParameterMidiChannel(static_cast<uint32_t>(index), static_cast<uint8_t>(channel), false, true);
  576. return 0;
  577. }
  578. int CarlaEngineOsc::handleMsgSetProgram(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  579. {
  580. carla_debug("CarlaEngineOsc::handleMsgSetProgram()");
  581. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");
  582. const int32_t index = argv[0]->i;
  583. CARLA_SAFE_ASSERT_RETURN(index >= -1, 0);
  584. plugin->setProgram(index, true, false, true);
  585. return 0;
  586. }
  587. int CarlaEngineOsc::handleMsgSetMidiProgram(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  588. {
  589. carla_debug("CarlaEngineOsc::handleMsgSetMidiProgram()");
  590. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(1, "i");
  591. const int32_t index = argv[0]->i;
  592. CARLA_SAFE_ASSERT_RETURN(index >= -1, 0);
  593. plugin->setMidiProgram(index, true, false, true);
  594. return 0;
  595. }
  596. int CarlaEngineOsc::handleMsgNoteOn(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  597. {
  598. carla_debug("CarlaEngineOsc::handleMsgNoteOn()");
  599. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(3, "iii");
  600. const int32_t channel = argv[0]->i;
  601. const int32_t note = argv[1]->i;
  602. const int32_t velo = argv[2]->i;
  603. CARLA_SAFE_ASSERT_RETURN(channel >= 0 && channel < MAX_MIDI_CHANNELS, 0);
  604. CARLA_SAFE_ASSERT_RETURN(note >= 0 && note < MAX_MIDI_NOTE, 0);
  605. CARLA_SAFE_ASSERT_RETURN(velo >= 0 && velo < MAX_MIDI_VALUE, 0);
  606. plugin->sendMidiSingleNote(static_cast<uint8_t>(channel), static_cast<uint8_t>(note), static_cast<uint8_t>(velo), true, false, true);
  607. return 0;
  608. }
  609. int CarlaEngineOsc::handleMsgNoteOff(CARLA_ENGINE_OSC_HANDLE_ARGS2)
  610. {
  611. carla_debug("CarlaEngineOsc::handleMsgNoteOff()");
  612. CARLA_ENGINE_OSC_CHECK_OSC_TYPES(2, "ii");
  613. const int32_t channel = argv[0]->i;
  614. const int32_t note = argv[1]->i;
  615. CARLA_SAFE_ASSERT_RETURN(channel >= 0 && channel < MAX_MIDI_CHANNELS, 0);
  616. CARLA_SAFE_ASSERT_RETURN(note >= 0 && note < MAX_MIDI_NOTE, 0);
  617. plugin->sendMidiSingleNote(static_cast<uint8_t>(channel), static_cast<uint8_t>(note), 0, true, false, true);
  618. return 0;
  619. }
  620. #endif // ! BUILD_BRIDGE
  621. // -----------------------------------------------------------------------
  622. CARLA_BACKEND_END_NAMESPACE