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 "CarlaDefines.h"
  18. #ifdef BUILD_BRIDGE
  19. # error This file should not be compiled if building bridge
  20. #endif
  21. #ifdef CARLA_OS_WIN
  22. # error This file should not be compiled for Windows
  23. #endif
  24. #include "CarlaEngineInternal.hpp"
  25. #include "CarlaPlugin.hpp"
  26. #include "CarlaBackendUtils.hpp"
  27. #include "CarlaMathUtils.hpp"
  28. #include "CarlaStateUtils.hpp"
  29. #include "CarlaExternalUI.hpp"
  30. #include "CarlaNative.hpp"
  31. #include "juce_core.h"
  32. using juce::MemoryOutputStream;
  33. using juce::ScopedPointer;
  34. using juce::String;
  35. using juce::XmlDocument;
  36. using juce::XmlElement;
  37. CARLA_BACKEND_START_NAMESPACE
  38. #if 0
  39. } // Fix editor indentation
  40. #endif
  41. // -----------------------------------------------------------------------
  42. class CarlaEngineNativeUI : public CarlaExternalUI
  43. {
  44. public:
  45. CarlaEngineNativeUI(CarlaEngine* const engine)
  46. : fEngine(engine)
  47. {
  48. carla_debug("CarlaEngineNativeUI::CarlaEngineNativeUI(%p)", engine);
  49. }
  50. ~CarlaEngineNativeUI() override
  51. {
  52. carla_debug("CarlaEngineNativeUI::~CarlaEngineNativeUI()");
  53. }
  54. CarlaMutex& getWriteLock() noexcept
  55. {
  56. return fWriteLock;
  57. }
  58. protected:
  59. bool msgReceived(const char* const msg) noexcept override
  60. {
  61. if (CarlaExternalUI::msgReceived(msg))
  62. return true;
  63. bool ok = true;
  64. if (std::strcmp(msg, "set_engine_option") == 0)
  65. {
  66. uint32_t option;
  67. int32_t value;
  68. const char* valueStr;
  69. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option), true);
  70. CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(value), true);
  71. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(valueStr), true);
  72. try {
  73. fEngine->setOption(static_cast<EngineOption>(option), value, valueStr);
  74. } catch(...) {}
  75. delete[] valueStr;
  76. }
  77. else if (std::strcmp(msg, "load_file") == 0)
  78. {
  79. const char* filename;
  80. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);
  81. try {
  82. ok = fEngine->loadFile(filename);
  83. } catch(...) {}
  84. delete[] filename;
  85. }
  86. else if (std::strcmp(msg, "load_project") == 0)
  87. {
  88. const char* filename;
  89. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);
  90. try {
  91. ok = fEngine->loadProject(filename);
  92. } catch(...) {}
  93. delete[] filename;
  94. }
  95. else if (std::strcmp(msg, "save_project") == 0)
  96. {
  97. const char* filename;
  98. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);
  99. try {
  100. ok = fEngine->saveProject(filename);
  101. } catch(...) {}
  102. delete[] filename;
  103. }
  104. else if (std::strcmp(msg, "patchbay_connect") == 0)
  105. {
  106. uint32_t groupA, portA, groupB, portB;
  107. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(groupA), true);
  108. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(portA), true);
  109. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(groupB), true);
  110. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(portB), true);
  111. try {
  112. ok = fEngine->patchbayConnect(groupA, portA, groupB, portB);
  113. } catch(...) {}
  114. }
  115. else if (std::strcmp(msg, "patchbay_disconnect") == 0)
  116. {
  117. uint32_t connectionId;
  118. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(connectionId), true);
  119. try {
  120. ok = fEngine->patchbayDisconnect(connectionId);
  121. } catch(...) {}
  122. }
  123. else if (std::strcmp(msg, "patchbay_refresh") == 0)
  124. {
  125. try {
  126. ok = fEngine->patchbayRefresh();
  127. } catch(...) {}
  128. }
  129. else if (std::strcmp(msg, "transport_play") == 0)
  130. {
  131. fEngine->transportPlay();
  132. }
  133. else if (std::strcmp(msg, "transport_pause") == 0)
  134. {
  135. fEngine->transportPause();
  136. }
  137. else if (std::strcmp(msg, "transport_relocate") == 0)
  138. {
  139. uint64_t frame;
  140. CARLA_SAFE_ASSERT_RETURN(readNextLineAsULong(frame), true);
  141. fEngine->transportRelocate(frame);
  142. }
  143. else if (std::strcmp(msg, "add_plugin") == 0)
  144. {
  145. uint32_t btype, ptype;
  146. const char* filename = nullptr;
  147. const char* name;
  148. const char* label;
  149. int64_t uniqueId;
  150. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(btype), true);
  151. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(ptype), true);
  152. readNextLineAsString(filename); // can be null
  153. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(name), true);
  154. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(label), true);
  155. CARLA_SAFE_ASSERT_RETURN(readNextLineAsLong(uniqueId), true);
  156. if (filename != nullptr && std::strcmp(filename, "(null)") == 0)
  157. {
  158. delete[] filename;
  159. filename = nullptr;
  160. }
  161. if (std::strcmp(name, "(null)") == 0)
  162. {
  163. delete[] name;
  164. name = nullptr;
  165. }
  166. ok = fEngine->addPlugin(static_cast<BinaryType>(btype), static_cast<PluginType>(ptype), filename, name, label, uniqueId, nullptr);
  167. if (filename != nullptr)
  168. delete[] filename;
  169. if (name != nullptr)
  170. delete[] name;
  171. delete[] label;
  172. }
  173. else if (std::strcmp(msg, "remove_plugin") == 0)
  174. {
  175. uint32_t pluginId;
  176. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  177. ok = fEngine->removePlugin(pluginId);
  178. }
  179. else if (std::strcmp(msg, "remove_all_plugins") == 0)
  180. {
  181. ok = fEngine->removeAllPlugins();
  182. }
  183. else if (std::strcmp(msg, "rename_plugin") == 0)
  184. {
  185. uint32_t pluginId;
  186. const char* newName;
  187. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  188. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(newName), true);
  189. // TODO
  190. /*const char* name =*/ fEngine->renamePlugin(pluginId, newName);
  191. delete[] newName;
  192. }
  193. else if (std::strcmp(msg, "clone_plugin") == 0)
  194. {
  195. uint32_t pluginId;
  196. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  197. ok = fEngine->clonePlugin(pluginId);
  198. }
  199. else if (std::strcmp(msg, "replace_plugin") == 0)
  200. {
  201. uint32_t pluginId;
  202. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  203. ok = fEngine->replacePlugin(pluginId);
  204. }
  205. else if (std::strcmp(msg, "switch_plugins") == 0)
  206. {
  207. uint32_t pluginIdA, pluginIdB;
  208. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdA), true);
  209. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdB), true);
  210. ok = fEngine->switchPlugins(pluginIdA, pluginIdB);
  211. }
  212. else if (std::strcmp(msg, "load_plugin_state") == 0)
  213. {
  214. uint32_t pluginId;
  215. const char* filename;
  216. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  217. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);
  218. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  219. plugin->loadStateFromFile(filename);
  220. delete[] filename;
  221. }
  222. else if (std::strcmp(msg, "save_plugin_state") == 0)
  223. {
  224. uint32_t pluginId;
  225. const char* filename;
  226. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  227. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);
  228. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  229. plugin->saveStateToFile(filename);
  230. delete[] filename;
  231. }
  232. else if (std::strcmp(msg, "set_option") == 0)
  233. {
  234. uint32_t pluginId, option;
  235. bool yesNo;
  236. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  237. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option), true);
  238. CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo), true);
  239. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  240. plugin->setOption(option, yesNo);
  241. }
  242. else if (std::strcmp(msg, "set_active") == 0)
  243. {
  244. uint32_t pluginId;
  245. bool onOff;
  246. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  247. CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(onOff), true);
  248. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  249. plugin->setActive(onOff, true, false);
  250. }
  251. else if (std::strcmp(msg, "set_drywet") == 0)
  252. {
  253. uint32_t pluginId;
  254. float value;
  255. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  256. CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);
  257. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  258. plugin->setDryWet(value, true, false);
  259. }
  260. else if (std::strcmp(msg, "set_volume") == 0)
  261. {
  262. uint32_t pluginId;
  263. float value;
  264. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  265. CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);
  266. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  267. plugin->setVolume(value, true, false);
  268. }
  269. else if (std::strcmp(msg, "set_balance_left") == 0)
  270. {
  271. uint32_t pluginId;
  272. float value;
  273. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  274. CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);
  275. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  276. plugin->setBalanceLeft(value, true, false);
  277. }
  278. else if (std::strcmp(msg, "set_balance_right") == 0)
  279. {
  280. uint32_t pluginId;
  281. float value;
  282. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  283. CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);
  284. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  285. plugin->setBalanceRight(value, true, false);
  286. }
  287. else if (std::strcmp(msg, "set_panning") == 0)
  288. {
  289. uint32_t pluginId;
  290. float value;
  291. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  292. CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);
  293. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  294. plugin->setPanning(value, true, false);
  295. }
  296. else if (std::strcmp(msg, "set_ctrl_channel") == 0)
  297. {
  298. uint32_t pluginId;
  299. int32_t channel;
  300. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  301. CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel), true);
  302. CARLA_SAFE_ASSERT_RETURN(channel >= -1 && channel < MAX_MIDI_CHANNELS, true);
  303. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  304. plugin->setCtrlChannel(int8_t(channel), true, false);
  305. }
  306. else if (std::strcmp(msg, "set_parameter_value") == 0)
  307. {
  308. uint32_t pluginId, parameterId;
  309. float value;
  310. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  311. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);
  312. CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);
  313. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  314. plugin->setParameterValue(parameterId, value, true, true, false);
  315. }
  316. else if (std::strcmp(msg, "set_parameter_midi_channel") == 0)
  317. {
  318. uint32_t pluginId, parameterId, channel;
  319. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  320. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);
  321. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel), true);
  322. CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);
  323. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  324. plugin->setParameterMidiChannel(parameterId, static_cast<uint8_t>(channel), true, false);
  325. }
  326. else if (std::strcmp(msg, "set_parameter_midi_cc") == 0)
  327. {
  328. uint32_t pluginId, parameterId;
  329. int32_t cc;
  330. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  331. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);
  332. CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(cc), true);
  333. CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < 0x5F, true);
  334. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  335. plugin->setParameterMidiCC(parameterId, static_cast<int16_t>(cc), true, false);
  336. }
  337. else if (std::strcmp(msg, "set_program") == 0)
  338. {
  339. uint32_t pluginId;
  340. int32_t index;
  341. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  342. CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index), true);
  343. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  344. plugin->setProgram(index, true, true, false);
  345. }
  346. else if (std::strcmp(msg, "set_midi_program") == 0)
  347. {
  348. uint32_t pluginId;
  349. int32_t index;
  350. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  351. CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index), true);
  352. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  353. plugin->setMidiProgram(index, true, true, false);
  354. }
  355. else if (std::strcmp(msg, "set_custom_data") == 0)
  356. {
  357. uint32_t pluginId;
  358. const char* type;
  359. const char* key;
  360. const char* value;
  361. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  362. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(type), true);
  363. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(key), true);
  364. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(value), true);
  365. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  366. plugin->setCustomData(type, key, value, true);
  367. delete[] type;
  368. delete[] key;
  369. delete[] value;
  370. }
  371. else if (std::strcmp(msg, "set_chunk_data") == 0)
  372. {
  373. uint32_t pluginId;
  374. const char* cdata;
  375. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  376. CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(cdata), true);
  377. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  378. plugin->setChunkData(cdata);
  379. delete[] cdata;
  380. }
  381. else if (std::strcmp(msg, "prepare_for_save") == 0)
  382. {
  383. uint32_t pluginId;
  384. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  385. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  386. plugin->prepareForSave();
  387. }
  388. else if (std::strcmp(msg, "reset_parameters") == 0)
  389. {
  390. uint32_t pluginId;
  391. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  392. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  393. plugin->resetParameters();
  394. }
  395. else if (std::strcmp(msg, "randomize_parameters") == 0)
  396. {
  397. uint32_t pluginId;
  398. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  399. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  400. plugin->randomizeParameters();
  401. }
  402. else if (std::strcmp(msg, "send_midi_note") == 0)
  403. {
  404. uint32_t pluginId, channel, note, velocity;
  405. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  406. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel), true);
  407. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(note), true);
  408. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(velocity), true);
  409. CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);
  410. CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);
  411. CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);
  412. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  413. plugin->sendMidiSingleNote(static_cast<uint8_t>(channel), static_cast<uint8_t>(note), static_cast<uint8_t>(velocity), true, true, false);
  414. }
  415. else if (std::strcmp(msg, "show_custom_ui") == 0)
  416. {
  417. uint32_t pluginId;
  418. bool yesNo;
  419. CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);
  420. CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo), true);
  421. if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))
  422. plugin->showCustomUI(yesNo);
  423. }
  424. else
  425. {
  426. carla_stderr("msgReceived : %s", msg);
  427. return false;
  428. }
  429. if (! ok)
  430. {
  431. const CarlaMutexLocker cml(fWriteLock);
  432. writeMsg("error\n", 6);
  433. writeAndFixMsg(fEngine->getLastError());
  434. }
  435. return true;
  436. }
  437. private:
  438. CarlaEngine* const fEngine;
  439. CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)
  440. };
  441. // -----------------------------------------------------------------------
  442. class CarlaEngineNative : public CarlaEngine
  443. {
  444. public:
  445. CarlaEngineNative(const NativeHostDescriptor* const host, const bool isPatchbay)
  446. : CarlaEngine(),
  447. pHost(host),
  448. fIsPatchbay(isPatchbay),
  449. fIsActive(false),
  450. fIsRunning(false),
  451. fUiServer(this)
  452. {
  453. carla_debug("CarlaEngineNative::CarlaEngineNative()");
  454. carla_zeroChar(fTmpBuf, STR_MAX+1);
  455. // set-up engine
  456. if (fIsPatchbay)
  457. {
  458. pData->options.processMode = ENGINE_PROCESS_MODE_PATCHBAY;
  459. pData->options.transportMode = ENGINE_TRANSPORT_MODE_PLUGIN;
  460. pData->options.forceStereo = false;
  461. pData->options.preferPluginBridges = false;
  462. pData->options.preferUiBridges = false;
  463. init("Carla-Patchbay");
  464. }
  465. else
  466. {
  467. pData->options.processMode = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;
  468. pData->options.transportMode = ENGINE_TRANSPORT_MODE_PLUGIN;
  469. pData->options.forceStereo = true;
  470. pData->options.preferPluginBridges = false;
  471. pData->options.preferUiBridges = false;
  472. init("Carla-Rack");
  473. }
  474. if (pData->options.resourceDir != nullptr)
  475. delete[] pData->options.resourceDir;
  476. if (pData->options.binaryDir != nullptr)
  477. delete[] pData->options.binaryDir;
  478. pData->options.resourceDir = carla_strdup(pHost->resourceDir);
  479. pData->options.binaryDir = carla_strdup(pHost->resourceDir);
  480. setCallback(_ui_server_callback, this);
  481. }
  482. ~CarlaEngineNative() override
  483. {
  484. CARLA_SAFE_ASSERT(! fIsActive);
  485. carla_debug("CarlaEngineNative::~CarlaEngineNative() - START");
  486. pData->aboutToClose = true;
  487. fIsRunning = false;
  488. removeAllPlugins();
  489. runPendingRtEvents();
  490. close();
  491. carla_debug("CarlaEngineNative::~CarlaEngineNative() - END");
  492. }
  493. protected:
  494. // -------------------------------------
  495. // CarlaEngine virtual calls
  496. bool init(const char* const clientName) override
  497. {
  498. carla_debug("CarlaEngineNative::init(\"%s\")", clientName);
  499. pData->bufferSize = pHost->get_buffer_size(pHost->handle);
  500. pData->sampleRate = pHost->get_sample_rate(pHost->handle);
  501. fIsRunning = true;
  502. CarlaEngine::init(clientName);
  503. return true;
  504. }
  505. bool isRunning() const noexcept override
  506. {
  507. return fIsRunning;
  508. }
  509. bool isOffline() const noexcept override
  510. {
  511. return pHost->is_offline(pHost->handle);
  512. }
  513. EngineType getType() const noexcept override
  514. {
  515. return kEngineTypePlugin;
  516. }
  517. const char* getCurrentDriverName() const noexcept override
  518. {
  519. return "Plugin";
  520. }
  521. // -------------------------------------------------------------------
  522. const char* renamePlugin(const uint id, const char* const newName) override
  523. {
  524. if (const char* const retName = CarlaEngine::renamePlugin(id, newName))
  525. {
  526. uiServerCallback(ENGINE_CALLBACK_PLUGIN_RENAMED, id, 0, 0, 0.0f, retName);
  527. return retName;
  528. }
  529. return nullptr;
  530. }
  531. // -------------------------------------------------------------------
  532. void bufferSizeChanged(const uint32_t newBufferSize)
  533. {
  534. pData->bufferSize = newBufferSize;
  535. CarlaEngine::bufferSizeChanged(newBufferSize);
  536. }
  537. void sampleRateChanged(const double newSampleRate)
  538. {
  539. pData->sampleRate = newSampleRate;
  540. CarlaEngine::sampleRateChanged(newSampleRate);
  541. }
  542. // -------------------------------------------------------------------
  543. void uiServerSendPluginInfo(CarlaPlugin* const plugin)
  544. {
  545. const CarlaMutexLocker cml(fUiServer.getWriteLock());
  546. const uint pluginId(plugin->getId());
  547. std::sprintf(fTmpBuf, "PLUGIN_INFO_%i\n", pluginId);
  548. fUiServer.writeMsg(fTmpBuf);
  549. std::sprintf(fTmpBuf, "%i:%i:%i:" P_INT64 ":%i:%i\n", plugin->getType(), plugin->getCategory(), plugin->getHints(), plugin->getUniqueId(), plugin->getOptionsAvailable(), plugin->getOptionsEnabled());
  550. fUiServer.writeMsg(fTmpBuf);
  551. if (const char* const filename = plugin->getFilename())
  552. {
  553. std::sprintf(fTmpBuf, "%s", filename);
  554. fUiServer.writeAndFixMsg(fTmpBuf);
  555. }
  556. else
  557. fUiServer.writeMsg("\n");
  558. if (const char* const name = plugin->getName())
  559. {
  560. std::sprintf(fTmpBuf, "%s", name);
  561. fUiServer.writeAndFixMsg(fTmpBuf);
  562. }
  563. else
  564. fUiServer.writeMsg("\n");
  565. if (const char* const iconName = plugin->getIconName())
  566. {
  567. std::sprintf(fTmpBuf, "%s", iconName);
  568. fUiServer.writeAndFixMsg(fTmpBuf);
  569. }
  570. else
  571. fUiServer.writeMsg("\n");
  572. plugin->getRealName(fTmpBuf);
  573. fUiServer.writeAndFixMsg(fTmpBuf);
  574. plugin->getLabel(fTmpBuf);
  575. fUiServer.writeAndFixMsg(fTmpBuf);
  576. plugin->getMaker(fTmpBuf);
  577. fUiServer.writeAndFixMsg(fTmpBuf);
  578. plugin->getCopyright(fTmpBuf);
  579. fUiServer.writeAndFixMsg(fTmpBuf);
  580. std::sprintf(fTmpBuf, "AUDIO_COUNT_%i:%i:%i\n", pluginId, plugin->getAudioInCount(), plugin->getAudioOutCount());
  581. fUiServer.writeMsg(fTmpBuf);
  582. std::sprintf(fTmpBuf, "MIDI_COUNT_%i:%i:%i\n", pluginId, plugin->getMidiInCount(), plugin->getMidiOutCount());
  583. fUiServer.writeMsg(fTmpBuf);
  584. }
  585. void uiServerSendPluginParameters(CarlaPlugin* const plugin)
  586. {
  587. const CarlaMutexLocker cml(fUiServer.getWriteLock());
  588. const uint pluginId(plugin->getId());
  589. uint32_t ins, outs, count;
  590. plugin->getParameterCountInfo(ins, outs);
  591. count = plugin->getParameterCount();
  592. std::sprintf(fTmpBuf, "PARAMETER_COUNT_%i:%i:%i:%i\n", pluginId, ins, outs, count);
  593. fUiServer.writeMsg(fTmpBuf);
  594. for (uint32_t i=0; i<count; ++i)
  595. {
  596. const ParameterData& paramData(plugin->getParameterData(i));
  597. const ParameterRanges& paramRanges(plugin->getParameterRanges(i));
  598. std::sprintf(fTmpBuf, "PARAMETER_DATA_%i:%i\n", pluginId, i);
  599. fUiServer.writeMsg(fTmpBuf);
  600. std::sprintf(fTmpBuf, "%i:%i:%i:%i\n", paramData.type, paramData.hints, paramData.midiChannel, paramData.midiCC);
  601. fUiServer.writeMsg(fTmpBuf);
  602. plugin->getParameterName(i, fTmpBuf);
  603. fUiServer.writeAndFixMsg(fTmpBuf);
  604. plugin->getParameterUnit(i, fTmpBuf);
  605. fUiServer.writeAndFixMsg(fTmpBuf);
  606. std::sprintf(fTmpBuf, "PARAMETER_RANGES_%i:%i\n", pluginId, i);
  607. fUiServer.writeMsg(fTmpBuf);
  608. std::sprintf(fTmpBuf, "%f:%f:%f:%f:%f:%f\n", paramRanges.def, paramRanges.min, paramRanges.max, paramRanges.step, paramRanges.stepSmall, paramRanges.stepLarge);
  609. fUiServer.writeMsg(fTmpBuf);
  610. std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", pluginId, i);
  611. fUiServer.writeMsg(fTmpBuf);
  612. std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(i));
  613. fUiServer.writeMsg(fTmpBuf);
  614. }
  615. }
  616. void uiServerSendPluginPrograms(CarlaPlugin* const plugin)
  617. {
  618. const CarlaMutexLocker cml(fUiServer.getWriteLock());
  619. const uint pluginId(plugin->getId());
  620. uint32_t count = plugin->getProgramCount();
  621. std::sprintf(fTmpBuf, "PROGRAM_COUNT_%i:%i:%i\n", pluginId, count, plugin->getCurrentProgram());
  622. fUiServer.writeMsg(fTmpBuf);
  623. for (uint32_t i=0; i<count; ++i)
  624. {
  625. std::sprintf(fTmpBuf, "PROGRAM_NAME_%i:%i\n", pluginId, i);
  626. fUiServer.writeMsg(fTmpBuf);
  627. plugin->getProgramName(i, fTmpBuf);
  628. fUiServer.writeAndFixMsg(fTmpBuf);
  629. }
  630. count = plugin->getMidiProgramCount();
  631. std::sprintf(fTmpBuf, "MIDI_PROGRAM_COUNT_%i:%i:%i\n", pluginId, count, plugin->getCurrentMidiProgram());
  632. fUiServer.writeMsg(fTmpBuf);
  633. for (uint32_t i=0; i<count; ++i)
  634. {
  635. std::sprintf(fTmpBuf, "MIDI_PROGRAM_DATA_%i:%i\n", pluginId, i);
  636. fUiServer.writeMsg(fTmpBuf);
  637. const MidiProgramData& mpData(plugin->getMidiProgramData(i));
  638. std::sprintf(fTmpBuf, "%i:%i\n", mpData.bank, mpData.program);
  639. fUiServer.writeMsg(fTmpBuf);
  640. std::sprintf(fTmpBuf, "%s", mpData.name);
  641. fUiServer.writeAndFixMsg(fTmpBuf);
  642. }
  643. }
  644. void uiServerCallback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr)
  645. {
  646. if (! fIsRunning)
  647. return;
  648. if (! fUiServer.isOk())
  649. return;
  650. CarlaPlugin* plugin;
  651. switch (action)
  652. {
  653. case ENGINE_CALLBACK_RELOAD_INFO:
  654. plugin = getPlugin(pluginId);
  655. if (plugin != nullptr && plugin->isEnabled())
  656. {
  657. CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);
  658. uiServerSendPluginInfo(plugin);
  659. }
  660. break;
  661. case ENGINE_CALLBACK_RELOAD_PARAMETERS:
  662. plugin = getPlugin(pluginId);
  663. if (plugin != nullptr && plugin->isEnabled())
  664. {
  665. CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);
  666. uiServerSendPluginParameters(plugin);
  667. }
  668. break;
  669. case ENGINE_CALLBACK_RELOAD_PROGRAMS:
  670. plugin = getPlugin(pluginId);
  671. if (plugin != nullptr && plugin->isEnabled())
  672. {
  673. CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);
  674. uiServerSendPluginPrograms(plugin);
  675. }
  676. break;
  677. case ENGINE_CALLBACK_RELOAD_ALL:
  678. case ENGINE_CALLBACK_PLUGIN_ADDED:
  679. plugin = getPlugin(pluginId);
  680. if (plugin != nullptr && plugin->isEnabled())
  681. {
  682. CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);
  683. uiServerSendPluginInfo(plugin);
  684. uiServerSendPluginParameters(plugin);
  685. uiServerSendPluginPrograms(plugin);
  686. }
  687. break;
  688. default:
  689. break;
  690. }
  691. const CarlaMutexLocker cml(fUiServer.getWriteLock());
  692. std::sprintf(fTmpBuf, "ENGINE_CALLBACK_%i\n", int(action));
  693. fUiServer.writeMsg(fTmpBuf);
  694. std::sprintf(fTmpBuf, "%u\n", pluginId);
  695. fUiServer.writeMsg(fTmpBuf);
  696. std::sprintf(fTmpBuf, "%i\n", value1);
  697. fUiServer.writeMsg(fTmpBuf);
  698. std::sprintf(fTmpBuf, "%i\n", value2);
  699. fUiServer.writeMsg(fTmpBuf);
  700. std::sprintf(fTmpBuf, "%f\n", value3);
  701. fUiServer.writeMsg(fTmpBuf);
  702. fUiServer.writeAndFixMsg(valueStr);
  703. }
  704. // -------------------------------------------------------------------
  705. // Plugin parameter calls
  706. uint32_t getParameterCount() const
  707. {
  708. if (CarlaPlugin* const plugin = _getFirstPlugin())
  709. return plugin->getParameterCount();
  710. return 0;
  711. }
  712. const NativeParameter* getParameterInfo(const uint32_t index) const
  713. {
  714. if (CarlaPlugin* const plugin = _getFirstPlugin())
  715. {
  716. if (index < plugin->getParameterCount())
  717. {
  718. static NativeParameter param;
  719. static char strBufName[STR_MAX+1];
  720. static char strBufUnit[STR_MAX+1];
  721. const ParameterData& paramData(plugin->getParameterData(index));
  722. const ParameterRanges& paramRanges(plugin->getParameterRanges(index));
  723. plugin->getParameterName(index, strBufName);
  724. plugin->getParameterUnit(index, strBufUnit);
  725. uint hints = 0x0;
  726. if (paramData.hints & PARAMETER_IS_BOOLEAN)
  727. hints |= ::PARAMETER_IS_BOOLEAN;
  728. if (paramData.hints & PARAMETER_IS_INTEGER)
  729. hints |= ::PARAMETER_IS_INTEGER;
  730. if (paramData.hints & PARAMETER_IS_LOGARITHMIC)
  731. hints |= ::PARAMETER_IS_LOGARITHMIC;
  732. if (paramData.hints & PARAMETER_IS_AUTOMABLE)
  733. hints |= ::PARAMETER_IS_AUTOMABLE;
  734. if (paramData.hints & PARAMETER_USES_SAMPLERATE)
  735. hints |= ::PARAMETER_USES_SAMPLE_RATE;
  736. if (paramData.hints & PARAMETER_USES_SCALEPOINTS)
  737. hints |= ::PARAMETER_USES_SCALEPOINTS;
  738. if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)
  739. hints |= ::PARAMETER_USES_CUSTOM_TEXT;
  740. if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)
  741. {
  742. if (paramData.hints & PARAMETER_IS_ENABLED)
  743. hints |= ::PARAMETER_IS_ENABLED;
  744. if (paramData.type == PARAMETER_OUTPUT)
  745. hints |= ::PARAMETER_IS_OUTPUT;
  746. }
  747. param.hints = static_cast<NativeParameterHints>(hints);
  748. param.name = strBufName;
  749. param.unit = strBufUnit;
  750. param.ranges.def = paramRanges.def;
  751. param.ranges.min = paramRanges.min;
  752. param.ranges.max = paramRanges.max;
  753. param.ranges.step = paramRanges.step;
  754. param.ranges.stepSmall = paramRanges.stepSmall;
  755. param.ranges.stepLarge = paramRanges.stepLarge;
  756. param.scalePointCount = 0; // TODO
  757. param.scalePoints = nullptr;
  758. return &param;
  759. }
  760. }
  761. return nullptr;
  762. }
  763. float getParameterValue(const uint32_t index) const
  764. {
  765. if (CarlaPlugin* const plugin = _getFirstPlugin())
  766. {
  767. if (index < plugin->getParameterCount())
  768. return plugin->getParameterValue(index);
  769. }
  770. return 0.0f;
  771. }
  772. const char* getParameterText(const uint32_t index /*, const float value*/) const
  773. {
  774. if (CarlaPlugin* const plugin = _getFirstPlugin())
  775. {
  776. if (index < plugin->getParameterCount())
  777. {
  778. static char strBuf[STR_MAX+1];
  779. carla_zeroChar(strBuf, STR_MAX+1);
  780. plugin->getParameterText(index, /*value,*/ strBuf);
  781. return strBuf;
  782. }
  783. }
  784. return nullptr;
  785. }
  786. // -------------------------------------------------------------------
  787. // Plugin midi-program calls
  788. uint32_t getMidiProgramCount() const
  789. {
  790. if (CarlaPlugin* const plugin = _getFirstPlugin())
  791. return plugin->getMidiProgramCount();
  792. return 0;
  793. }
  794. const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const
  795. {
  796. if (CarlaPlugin* const plugin = _getFirstPlugin())
  797. {
  798. if (index < plugin->getMidiProgramCount())
  799. {
  800. static NativeMidiProgram midiProg;
  801. {
  802. const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));
  803. midiProg.bank = midiProgData.bank;
  804. midiProg.program = midiProgData.program;
  805. midiProg.name = midiProgData.name;
  806. }
  807. return &midiProg;
  808. }
  809. }
  810. return nullptr;
  811. }
  812. // -------------------------------------------------------------------
  813. // Plugin state calls
  814. void setParameterValue(const uint32_t index, const float value)
  815. {
  816. if (CarlaPlugin* const plugin = _getFirstPlugin())
  817. {
  818. if (index < plugin->getParameterCount())
  819. plugin->setParameterValue(index, value, false, false, false);
  820. }
  821. }
  822. void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)
  823. {
  824. if (CarlaPlugin* const plugin = _getFirstPlugin())
  825. plugin->setMidiProgramById(bank, program, false, false, false);
  826. }
  827. // -------------------------------------------------------------------
  828. // Plugin process calls
  829. void activate()
  830. {
  831. #if 0
  832. for (uint32_t i=0; i < pData->curPluginCount; ++i)
  833. {
  834. CarlaPlugin* const plugin(pData->plugins[i].plugin);
  835. if (plugin == nullptr || ! plugin->isEnabled())
  836. continue;
  837. plugin->setActive(true, true, false);
  838. }
  839. #endif
  840. fIsActive = true;
  841. }
  842. void deactivate()
  843. {
  844. fIsActive = false;
  845. #if 0
  846. for (uint32_t i=0; i < pData->curPluginCount; ++i)
  847. {
  848. CarlaPlugin* const plugin(pData->plugins[i].plugin);
  849. if (plugin == nullptr || ! plugin->isEnabled())
  850. continue;
  851. plugin->setActive(false, true, false);
  852. }
  853. #endif
  854. // just in case
  855. runPendingRtEvents();
  856. }
  857. void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)
  858. {
  859. if (pData->curPluginCount == 0 && ! fIsPatchbay)
  860. {
  861. FLOAT_COPY(outBuffer[0], inBuffer[0], frames);
  862. FLOAT_COPY(outBuffer[1], inBuffer[1], frames);
  863. return runPendingRtEvents();;
  864. }
  865. // ---------------------------------------------------------------
  866. // Time Info
  867. const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));
  868. pData->timeInfo.playing = timeInfo->playing;
  869. pData->timeInfo.frame = timeInfo->frame;
  870. pData->timeInfo.usecs = timeInfo->usecs;
  871. pData->timeInfo.valid = 0x0;
  872. if (timeInfo->bbt.valid)
  873. {
  874. pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;
  875. pData->timeInfo.bbt.bar = timeInfo->bbt.bar;
  876. pData->timeInfo.bbt.beat = timeInfo->bbt.beat;
  877. pData->timeInfo.bbt.tick = timeInfo->bbt.tick;
  878. pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;
  879. pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;
  880. pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;
  881. pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;
  882. pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;
  883. }
  884. // ---------------------------------------------------------------
  885. // initialize events
  886. carla_zeroStruct<EngineEvent>(pData->events.in, kMaxEngineEventInternalCount);
  887. carla_zeroStruct<EngineEvent>(pData->events.out, kMaxEngineEventInternalCount);
  888. // ---------------------------------------------------------------
  889. // events input (before processing)
  890. {
  891. uint32_t engineEventIndex = 0;
  892. for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)
  893. {
  894. const NativeMidiEvent& midiEvent(midiEvents[i]);
  895. EngineEvent& engineEvent(pData->events.in[engineEventIndex++]);
  896. engineEvent.time = midiEvent.time;
  897. engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);
  898. if (engineEventIndex >= kMaxEngineEventInternalCount)
  899. break;
  900. }
  901. }
  902. if (fIsPatchbay)
  903. {
  904. // -----------------------------------------------------------
  905. // create audio buffers
  906. //float* inBuf[2] = { inBuffer[0], inBuffer[1] };
  907. //float* outBuf[2] = { outBuffer[0], outBuffer[1] };
  908. //uint32_t bufCount[2] = { 2, 2 };
  909. // -----------------------------------------------------------
  910. // process
  911. //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());
  912. }
  913. else
  914. {
  915. // -----------------------------------------------------------
  916. // create audio buffers
  917. const float* inBuf[2] = { inBuffer[0], inBuffer[1] };
  918. float* outBuf[2] = { outBuffer[0], outBuffer[1] };
  919. // -----------------------------------------------------------
  920. // process
  921. pData->processRack(inBuf, outBuf, frames, isOffline());
  922. }
  923. // ---------------------------------------------------------------
  924. // events output (after processing)
  925. carla_zeroStruct<EngineEvent>(pData->events.in, kMaxEngineEventInternalCount);
  926. {
  927. NativeMidiEvent midiEvent;
  928. for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)
  929. {
  930. const EngineEvent& engineEvent(pData->events.out[i]);
  931. if (engineEvent.type == kEngineEventTypeNull)
  932. break;
  933. midiEvent.time = engineEvent.time;
  934. if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)
  935. {
  936. midiEvent.port = 0;
  937. engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);
  938. }
  939. else if (engineEvent.type == kEngineEventTypeMidi)
  940. {
  941. if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)
  942. continue;
  943. midiEvent.port = engineEvent.midi.port;
  944. midiEvent.size = engineEvent.midi.size;
  945. midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);
  946. for (uint8_t j=1; j < midiEvent.size; ++j)
  947. midiEvent.data[j] = engineEvent.midi.data[j];
  948. }
  949. else
  950. {
  951. carla_stderr("Unknown event type...");
  952. continue;
  953. }
  954. pHost->write_midi_event(pHost->handle, &midiEvent);
  955. }
  956. }
  957. runPendingRtEvents();
  958. }
  959. // -------------------------------------------------------------------
  960. // Plugin UI calls
  961. void uiShow(const bool show)
  962. {
  963. if (show)
  964. {
  965. if (fUiServer.isOk())
  966. return;
  967. CarlaString path(pHost->resourceDir);
  968. path += "/carla-plugin";
  969. carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());
  970. fUiServer.setData(path, pData->sampleRate, pHost->uiName);
  971. fUiServer.start();
  972. for (uint i=0; i < pData->curPluginCount; ++i)
  973. {
  974. CarlaPlugin* const plugin(pData->plugins[i].plugin);
  975. if (plugin != nullptr && plugin->isEnabled())
  976. {
  977. uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());
  978. }
  979. }
  980. }
  981. else
  982. {
  983. fUiServer.stop();
  984. }
  985. }
  986. void uiIdle()
  987. {
  988. CarlaEngine::idle();
  989. fUiServer.idle();
  990. if (! fUiServer.isOk())
  991. return;
  992. for (uint i=0; i < pData->curPluginCount; ++i)
  993. {
  994. const EnginePluginData& plugData(pData->plugins[i]);
  995. const CarlaPlugin* const plugin(pData->plugins[i].plugin);
  996. {
  997. const CarlaMutexLocker cml(fUiServer.getWriteLock());
  998. std::sprintf(fTmpBuf, "PEAKS_%i\n", i);
  999. fUiServer.writeMsg(fTmpBuf);
  1000. std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);
  1001. fUiServer.writeMsg(fTmpBuf);
  1002. }
  1003. for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)
  1004. {
  1005. if (plugin->isParameterOutput(j))
  1006. continue;
  1007. const CarlaMutexLocker cml(fUiServer.getWriteLock());
  1008. std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);
  1009. fUiServer.writeMsg(fTmpBuf);
  1010. std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));
  1011. fUiServer.writeMsg(fTmpBuf);
  1012. }
  1013. }
  1014. switch (fUiServer.getAndResetUiState())
  1015. {
  1016. case CarlaExternalUI::UiNone:
  1017. case CarlaExternalUI::UiShow:
  1018. break;
  1019. case CarlaExternalUI::UiCrashed:
  1020. pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);
  1021. break;
  1022. case CarlaExternalUI::UiHide:
  1023. pHost->ui_closed(pHost->handle);
  1024. fUiServer.stop();
  1025. break;
  1026. }
  1027. }
  1028. // -------------------------------------------------------------------
  1029. // Plugin state calls
  1030. char* getState() const
  1031. {
  1032. MemoryOutputStream out;
  1033. out << "<?xml version='1.0' encoding='UTF-8'?>\n";
  1034. out << "<!DOCTYPE CARLA-PROJECT>\n";
  1035. out << "<CARLA-PROJECT VERSION='2.0'>\n";
  1036. bool firstPlugin = true;
  1037. char strBuf[STR_MAX+1];
  1038. for (uint i=0; i < pData->curPluginCount; ++i)
  1039. {
  1040. CarlaPlugin* const plugin(pData->plugins[i].plugin);
  1041. if (plugin != nullptr && plugin->isEnabled())
  1042. {
  1043. if (! firstPlugin)
  1044. out << "\n";
  1045. strBuf[0] = '\0';
  1046. plugin->getRealName(strBuf);
  1047. //if (strBuf[0] != '\0')
  1048. // out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));
  1049. out << " <Plugin>\n";
  1050. out << plugin->getStateSave().toString();
  1051. out << " </Plugin>\n";
  1052. firstPlugin = false;
  1053. }
  1054. }
  1055. out << "</CARLA-PROJECT>\n";
  1056. return strdup(out.toString().toRawUTF8());
  1057. }
  1058. void setState(const char* const data)
  1059. {
  1060. const String text(data);
  1061. XmlDocument xml(text);
  1062. ScopedPointer<XmlElement> xmlElement(xml.getDocumentElement(true));
  1063. CARLA_SAFE_ASSERT_RETURN(xmlElement != nullptr,);
  1064. CARLA_SAFE_ASSERT_RETURN(xmlElement->getTagName().equalsIgnoreCase("carla-project"),);
  1065. // completely load file
  1066. xmlElement = xml.getDocumentElement(false);
  1067. CARLA_SAFE_ASSERT_RETURN(xmlElement != nullptr,);
  1068. //bool pluginsAdded = false;
  1069. for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())
  1070. {
  1071. const String& tagName(elem->getTagName());
  1072. if (tagName.equalsIgnoreCase("plugin"))
  1073. {
  1074. StateSave stateSave;
  1075. stateSave.fillFromXmlElement(elem);
  1076. CARLA_SAFE_ASSERT_CONTINUE(stateSave.type != nullptr);
  1077. const void* extraStuff = nullptr;
  1078. // check if using GIG, SF2 or SFZ 16outs
  1079. static const char kUse16OutsSuffix[] = " (16 outs)";
  1080. const PluginType ptype(getPluginTypeFromString(stateSave.type));
  1081. if (CarlaString(stateSave.label).endsWith(kUse16OutsSuffix))
  1082. {
  1083. if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)
  1084. extraStuff = "true";
  1085. }
  1086. // TODO - proper find&load plugins
  1087. if (addPlugin(ptype, stateSave.binary, stateSave.name, stateSave.label, stateSave.uniqueId, extraStuff))
  1088. {
  1089. if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))
  1090. plugin->loadStateSave(stateSave);
  1091. }
  1092. //pluginsAdded = true;
  1093. }
  1094. }
  1095. //if (pluginsAdded)
  1096. // pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);
  1097. }
  1098. // -------------------------------------------------------------------
  1099. public:
  1100. #define handlePtr ((CarlaEngineNative*)handle)
  1101. static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)
  1102. {
  1103. return new CarlaEngineNative(host, false);
  1104. }
  1105. #ifdef HAVE_JUCE
  1106. static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)
  1107. {
  1108. return new CarlaEngineNative(host, true);
  1109. }
  1110. #endif
  1111. static void _cleanup(NativePluginHandle handle)
  1112. {
  1113. delete handlePtr;
  1114. }
  1115. static uint32_t _get_parameter_count(NativePluginHandle handle)
  1116. {
  1117. return handlePtr->getParameterCount();
  1118. }
  1119. static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)
  1120. {
  1121. return handlePtr->getParameterInfo(index);
  1122. }
  1123. static float _get_parameter_value(NativePluginHandle handle, uint32_t index)
  1124. {
  1125. return handlePtr->getParameterValue(index);
  1126. }
  1127. static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index /*, float value*/)
  1128. {
  1129. return handlePtr->getParameterText(index /*, value*/);
  1130. }
  1131. static uint32_t _get_midi_program_count(NativePluginHandle handle)
  1132. {
  1133. return handlePtr->getMidiProgramCount();
  1134. }
  1135. static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)
  1136. {
  1137. return handlePtr->getMidiProgramInfo(index);
  1138. }
  1139. static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)
  1140. {
  1141. handlePtr->setParameterValue(index, value);
  1142. }
  1143. static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)
  1144. {
  1145. handlePtr->setMidiProgram(channel, bank, program);
  1146. }
  1147. static void _ui_show(NativePluginHandle handle, bool show)
  1148. {
  1149. handlePtr->uiShow(show);
  1150. }
  1151. static void _ui_idle(NativePluginHandle handle)
  1152. {
  1153. handlePtr->uiIdle();
  1154. }
  1155. static void _activate(NativePluginHandle handle)
  1156. {
  1157. handlePtr->activate();
  1158. }
  1159. static void _deactivate(NativePluginHandle handle)
  1160. {
  1161. handlePtr->deactivate();
  1162. }
  1163. static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)
  1164. {
  1165. handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);
  1166. }
  1167. static char* _get_state(NativePluginHandle handle)
  1168. {
  1169. return handlePtr->getState();
  1170. }
  1171. static void _set_state(NativePluginHandle handle, const char* data)
  1172. {
  1173. handlePtr->setState(data);
  1174. }
  1175. static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)
  1176. {
  1177. switch(opcode)
  1178. {
  1179. case PLUGIN_OPCODE_NULL:
  1180. return 0;
  1181. case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:
  1182. CARLA_SAFE_ASSERT_RETURN(value > 0, 0);
  1183. handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));
  1184. return 0;
  1185. case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:
  1186. handlePtr->sampleRateChanged(static_cast<double>(opt));
  1187. return 0;
  1188. case PLUGIN_OPCODE_OFFLINE_CHANGED:
  1189. handlePtr->offlineModeChanged(value != 0);
  1190. return 0;
  1191. case PLUGIN_OPCODE_UI_NAME_CHANGED:
  1192. //handlePtr->uiNameChanged(static_cast<const char*>(ptr));
  1193. return 0;
  1194. }
  1195. return 0;
  1196. // unused
  1197. (void)index;
  1198. (void)ptr;
  1199. }
  1200. // -------------------------------------------------------------------
  1201. static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)
  1202. {
  1203. handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);
  1204. }
  1205. // -------------------------------------------------------------------
  1206. #undef handlePtr
  1207. private:
  1208. const NativeHostDescriptor* const pHost;
  1209. const bool fIsPatchbay; // rack if false
  1210. bool fIsActive, fIsRunning;
  1211. CarlaEngineNativeUI fUiServer;
  1212. char fTmpBuf[STR_MAX+1];
  1213. CarlaPlugin* _getFirstPlugin() const noexcept
  1214. {
  1215. if (pData->curPluginCount == 0 || pData->plugins == nullptr)
  1216. return nullptr;
  1217. CarlaPlugin* const plugin(pData->plugins[0].plugin);
  1218. if (plugin == nullptr || ! plugin->isEnabled())
  1219. return nullptr;
  1220. return pData->plugins[0].plugin;
  1221. }
  1222. CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)
  1223. };
  1224. // -----------------------------------------------------------------------
  1225. static const NativePluginDescriptor carlaRackDesc = {
  1226. /* category */ ::PLUGIN_CATEGORY_OTHER,
  1227. /* hints */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),
  1228. /* supports */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),
  1229. /* audioIns */ 2,
  1230. /* audioOuts */ 2,
  1231. /* midiIns */ 1,
  1232. /* midiOuts */ 1,
  1233. /* paramIns */ 0,
  1234. /* paramOuts */ 0,
  1235. /* name */ "Carla-Rack",
  1236. /* label */ "carlarack",
  1237. /* maker */ "falkTX",
  1238. /* copyright */ "GNU GPL v2+",
  1239. CarlaEngineNative::_instantiateRack,
  1240. CarlaEngineNative::_cleanup,
  1241. CarlaEngineNative::_get_parameter_count,
  1242. CarlaEngineNative::_get_parameter_info,
  1243. CarlaEngineNative::_get_parameter_value,
  1244. CarlaEngineNative::_get_parameter_text,
  1245. CarlaEngineNative::_get_midi_program_count,
  1246. CarlaEngineNative::_get_midi_program_info,
  1247. CarlaEngineNative::_set_parameter_value,
  1248. CarlaEngineNative::_set_midi_program,
  1249. /* _set_custom_data */ nullptr,
  1250. CarlaEngineNative::_ui_show,
  1251. CarlaEngineNative::_ui_idle,
  1252. /* _ui_set_parameter_value */ nullptr,
  1253. /* _ui_set_midi_program */ nullptr,
  1254. /* _ui_set_custom_data */ nullptr,
  1255. CarlaEngineNative::_activate,
  1256. CarlaEngineNative::_deactivate,
  1257. CarlaEngineNative::_process,
  1258. CarlaEngineNative::_get_state,
  1259. CarlaEngineNative::_set_state,
  1260. CarlaEngineNative::_dispatcher
  1261. };
  1262. #if 0 //def HAVE_JUCE
  1263. static const NativePluginDescriptor carlaPatchbayDesc = {
  1264. /* category */ ::PLUGIN_CATEGORY_OTHER,
  1265. /* hints */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),
  1266. /* supports */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),
  1267. /* audioIns */ 2,
  1268. /* audioOuts */ 2,
  1269. /* midiIns */ 1,
  1270. /* midiOuts */ 1,
  1271. /* paramIns */ 0,
  1272. /* paramOuts */ 0,
  1273. /* name */ "Carla-Patchbay",
  1274. /* label */ "carlapatchbay",
  1275. /* maker */ "falkTX",
  1276. /* copyright */ "GNU GPL v2+",
  1277. CarlaEngineNative::_instantiatePatchbay,
  1278. CarlaEngineNative::_cleanup,
  1279. CarlaEngineNative::_get_parameter_count,
  1280. CarlaEngineNative::_get_parameter_info,
  1281. CarlaEngineNative::_get_parameter_value,
  1282. CarlaEngineNative::_get_parameter_text,
  1283. CarlaEngineNative::_get_midi_program_count,
  1284. CarlaEngineNative::_get_midi_program_info,
  1285. CarlaEngineNative::_set_parameter_value,
  1286. CarlaEngineNative::_set_midi_program,
  1287. /* _set_custom_data */ nullptr,
  1288. CarlaEngineNative::_ui_show,
  1289. CarlaEngineNative::_ui_idle,
  1290. /* _ui_set_parameter_value */ nullptr,
  1291. /* _ui_set_midi_program */ nullptr,
  1292. /* _ui_set_custom_data */ nullptr,
  1293. CarlaEngineNative::_activate,
  1294. CarlaEngineNative::_deactivate,
  1295. CarlaEngineNative::_process,
  1296. CarlaEngineNative::_get_state,
  1297. CarlaEngineNative::_set_state,
  1298. CarlaEngineNative::_dispatcher
  1299. };
  1300. #endif
  1301. CARLA_BACKEND_END_NAMESPACE
  1302. // -----------------------------------------------------------------------
  1303. CARLA_EXPORT
  1304. void carla_register_native_plugin_carla();
  1305. void carla_register_native_plugin_carla()
  1306. {
  1307. CARLA_BACKEND_USE_NAMESPACE;
  1308. carla_register_native_plugin(&carlaRackDesc);
  1309. #if 0 //def HAVE_JUCE
  1310. carla_register_native_plugin(&carlaPatchbayDesc);
  1311. #endif
  1312. }
  1313. // -----------------------------------------------------------------------
  1314. CARLA_EXPORT
  1315. const NativePluginDescriptor* get_carla_native_plugin();
  1316. const NativePluginDescriptor* get_carla_native_plugin()
  1317. {
  1318. CARLA_BACKEND_USE_NAMESPACE;
  1319. return &carlaRackDesc;
  1320. }
  1321. // -----------------------------------------------------------------------
  1322. // Extra stuff for linking purposes
  1323. #ifdef CARLA_PLUGIN_EXPORT
  1324. CARLA_BACKEND_START_NAMESPACE
  1325. CarlaEngine* CarlaEngine::newJack() { return nullptr; }
  1326. CarlaEngine* CarlaEngine::newRtAudio(const AudioApi) { return nullptr; }
  1327. uint CarlaEngine::getRtAudioApiCount() { return 0; }
  1328. const char* CarlaEngine::getRtAudioApiName(const uint) { return nullptr; }
  1329. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }
  1330. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }
  1331. # ifdef HAVE_JUCE
  1332. CarlaEngine* CarlaEngine::newJuce(const AudioApi) { return nullptr; }
  1333. uint CarlaEngine::getJuceApiCount() { return 0; }
  1334. const char* CarlaEngine::getJuceApiName(const uint) { return nullptr; }
  1335. const char* const* CarlaEngine::getJuceApiDeviceNames(const uint) { return nullptr; }
  1336. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const uint, const char* const) { return nullptr; }
  1337. # endif
  1338. CARLA_BACKEND_END_NAMESPACE
  1339. #ifdef WANT_DSSI
  1340. # include "CarlaDssiUtils.cpp"
  1341. #endif
  1342. #include "CarlaStateUtils.cpp"
  1343. #endif
  1344. // -----------------------------------------------------------------------