src/client/clientlauncher.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) 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 Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "mainmenumanager.h"
  21 #include "debug.h"
  22 #include "clouds.h"
  23 #include "server.h"
  24 #include "filesys.h"
  25 #include "guiMainMenu.h"
  26 #include "game.h"
  27 #include "chat.h"
  28 #include "gettext.h"
  29 #include "profiler.h"
  30 #include "log.h"
  31 #include "serverlist.h"
  32 #include "guiEngine.h"
  33 #include "player.h"
  34 #include "fontengine.h"
  35 #include "clientlauncher.h"
  36
  37 /* mainmenumanager.h
  38  */
  39 gui::IGUIEnvironment *guienv = NULL;
  40 gui::IGUIStaticText *guiroot = NULL;
  41 MainMenuManager g_menumgr;
  42
  43 bool noMenuActive()
  44 {
  45         return g_menumgr.menuCount() == 0;
  46 }
  47
  48 // Passed to menus to allow disconnecting and exiting
  49 MainGameCallback *g_gamecallback = NULL;
  50
  51
  52 // Instance of the time getter
  53 static TimeGetter *g_timegetter = NULL;
  54
  55 u32 getTimeMs()
  56 {
  57         if (g_timegetter == NULL)
  58                 return 0;
  59         return g_timegetter->getTime(PRECISION_MILLI);
  60 }
  61
  62 u32 getTime(TimePrecision prec) {
  63         if (g_timegetter == NULL)
  64                 return 0;
  65         return g_timegetter->getTime(prec);
  66 }
  67
  68 ClientLauncher::~ClientLauncher()
  69 {
  70         if (receiver)
  71                 delete receiver;
  72
  73         if (input)
  74                 delete input;
  75
  76         if (g_fontengine)
  77                 delete g_fontengine;
  78
  79         if (device)
  80                 device->drop();
  81 }
  82
  83
  84 bool ClientLauncher::run(GameParams &game_params, const Settings &cmd_args)
  85 {
  86         init_args(game_params, cmd_args);
  87
  88         // List video modes if requested
  89         if (list_video_modes)
  90                 return print_video_modes();
  91
  92         if (!init_engine(game_params.log_level)) {
  93                 errorstream << "Could not initialize game engine." << std::endl;
  94                 return false;
  95         }
  96
  97         // Create time getter
  98         g_timegetter = new IrrlichtTimeGetter(device);
  99
 100         // Speed tests (done after irrlicht is loaded to get timer)
 101         if (cmd_args.getFlag("speedtests")) {
 102                 dstream << "Running speed tests" << std::endl;
 103                 speed_tests();
 104                 return true;
 105         }
 106
 107         video::IVideoDriver *video_driver = device->getVideoDriver();
 108         if (video_driver == NULL) {
 109                 errorstream << "Could not initialize video driver." << std::endl;
 110                 return false;
 111         }
 112
 113         porting::setXorgClassHint(video_driver->getExposedVideoData(), PROJECT_NAME_C);
 114
 115         /*
 116                 This changes the minimum allowed number of vertices in a VBO.
 117                 Default is 500.
 118         */
 119         //driver->setMinHardwareBufferVertexCount(50);
 120
 121         // Create game callback for menus
 122         g_gamecallback = new MainGameCallback(device);
 123
 124         device->setResizable(true);
 125
 126         if (random_input)
 127                 input = new RandomInputHandler();
 128         else
 129                 input = new RealInputHandler(device, receiver);
 130
 131         smgr = device->getSceneManager();
 132         smgr->getParameters()->setAttribute(scene::ALLOW_ZWRITE_ON_TRANSPARENT, true);
 133
 134         guienv = device->getGUIEnvironment();
 135         skin = guienv->getSkin();
 136         skin->setColor(gui::EGDC_BUTTON_TEXT, video::SColor(255, 255, 255, 255));
 137         skin->setColor(gui::EGDC_3D_LIGHT, video::SColor(0, 0, 0, 0));
 138         skin->setColor(gui::EGDC_3D_HIGH_LIGHT, video::SColor(255, 30, 30, 30));
 139         skin->setColor(gui::EGDC_3D_SHADOW, video::SColor(255, 0, 0, 0));
 140         skin->setColor(gui::EGDC_HIGH_LIGHT, video::SColor(255, 70, 120, 50));
 141         skin->setColor(gui::EGDC_HIGH_LIGHT_TEXT, video::SColor(255, 255, 255, 255));
 142
 143         g_fontengine = new FontEngine(g_settings, guienv);
 144         FATAL_ERROR_IF(g_fontengine == NULL, "Font engine creation failed.");
 145
 146 #if (IRRLICHT_VERSION_MAJOR >= 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR >= 2
 147         // Irrlicht 1.8 input colours
 148         skin->setColor(gui::EGDC_EDITABLE, video::SColor(255, 128, 128, 128));
 149         skin->setColor(gui::EGDC_FOCUSED_EDITABLE, video::SColor(255, 96, 134, 49));
 150 #endif
 151
 152         // Create the menu clouds
 153         if (!g_menucloudsmgr)
 154                 g_menucloudsmgr = smgr->createNewSceneManager();
 155         if (!g_menuclouds)
 156                 g_menuclouds = new Clouds(g_menucloudsmgr->getRootSceneNode(),
 157                                 g_menucloudsmgr, -1, rand(), 100);
 158         g_menuclouds->update(v2f(0, 0), video::SColor(255, 200, 200, 255));
 159         scene::ICameraSceneNode* camera;
 160         camera = g_menucloudsmgr->addCameraSceneNode(0,
 161                                 v3f(0, 0, 0), v3f(0, 60, 100));
 162         camera->setFarValue(10000);
 163
 164         /*
 165                 GUI stuff
 166         */
 167
 168         ChatBackend chat_backend;
 169
 170         // If an error occurs, this is set to something by menu().
 171         // It is then displayed before the menu shows on the next call to menu()
 172         std::string error_message;
 173         bool reconnect_requested = false;
 174
 175         bool first_loop = true;
 176
 177         /*
 178                 Menu-game loop
 179         */
 180         bool retval = true;
 181         bool *kill = porting::signal_handler_killstatus();
 182
 183         while (device->run() && !*kill && !g_gamecallback->shutdown_requested)
 184         {
 185                 // Set the window caption
 186                 const wchar_t *text = wgettext("Main Menu");
 187                 device->setWindowCaption((utf8_to_wide(PROJECT_NAME_C) + L" [" + text + L"]").c_str());
 188                 delete[] text;
 189
 190                 try {   // This is used for catching disconnects
 191
 192                         guienv->clear();
 193
 194                         /*
 195                                 We need some kind of a root node to be able to add
 196                                 custom gui elements directly on the screen.
 197                                 Otherwise they won't be automatically drawn.
 198                         */
 199                         guiroot = guienv->addStaticText(L"", core::rect<s32>(0, 0, 10000, 10000));
 200
 201                         bool game_has_run = launch_game(error_message, reconnect_requested,
 202                                 game_params, cmd_args);
 203
 204                         // If skip_main_menu, we only want to startup once
 205                         if (skip_main_menu && !first_loop)
 206                                 break;
 207
 208                         first_loop = false;
 209
 210                         if (!game_has_run) {
 211                                 if (skip_main_menu)
 212                                         break;
 213                                 else
 214                                         continue;
 215                         }
 216
 217                         // Break out of menu-game loop to shut down cleanly
 218                         if (!device->run() || *kill) {
 219                                 if (g_settings_path != "")
 220                                         g_settings->updateConfigFile(g_settings_path.c_str());
 221                                 break;
 222                         }
 223
 224                         if (current_playername.length() > PLAYERNAME_SIZE-1) {
 225                                 error_message = gettext("Player name too long.");
 226                                 playername = current_playername.substr(0, PLAYERNAME_SIZE-1);
 227                                 g_settings->set("name", playername);
 228                                 continue;
 229                         }
 230
 231                         device->getVideoDriver()->setTextureCreationFlag(
 232                                         video::ETCF_CREATE_MIP_MAPS, g_settings->getBool("mip_map"));
 233
 234 #ifdef HAVE_TOUCHSCREENGUI
 235                         receiver->m_touchscreengui = new TouchScreenGUI(device, receiver);
 236                         g_touchscreengui = receiver->m_touchscreengui;
 237 #endif
 238
 239                         the_game(
 240                                 kill,
 241                                 random_input,
 242                                 input,
 243                                 device,
 244                                 worldspec.path,
 245                                 current_playername,
 246                                 current_password,
 247                                 current_address,
 248                                 current_port,
 249                                 error_message,
 250                                 chat_backend,
 251                                 &reconnect_requested,
 252                                 gamespec,
 253                                 simple_singleplayer_mode
 254                         );
 255                         smgr->clear();
 256
 257 #ifdef HAVE_TOUCHSCREENGUI
 258                         delete g_touchscreengui;
 259                         g_touchscreengui = NULL;
 260                         receiver->m_touchscreengui = NULL;
 261 #endif
 262
 263                 } //try
 264                 catch (con::PeerNotFoundException &e) {
 265                         error_message = gettext("Connection error (timed out?)");
 266                         errorstream << error_message << std::endl;
 267                 }
 268
 269 #ifdef NDEBUG
 270                 catch (std::exception &e) {
 271                         std::string error_message = "Some exception: \"";
 272                         error_message += e.what();
 273                         error_message += "\"";
 274                         errorstream << error_message << std::endl;
 275                 }
 276 #endif
 277
 278                 // If no main menu, show error and exit
 279                 if (skip_main_menu) {
 280                         if (!error_message.empty()) {
 281                                 verbosestream << "error_message = "
 282                                               << error_message << std::endl;
 283                                 retval = false;
 284                         }
 285                         break;
 286                 }
 287         } // Menu-game loop
 288
 289         g_menuclouds->drop();
 290         g_menucloudsmgr->drop();
 291
 292         return retval;
 293 }
 294
 295 void ClientLauncher::init_args(GameParams &game_params, const Settings &cmd_args)
 296 {
 297
 298         skip_main_menu = cmd_args.getFlag("go");
 299
 300         // FIXME: This is confusing (but correct)
 301
 302         /* If world_path is set then override it unless skipping the main menu using
 303          * the --go command line param. Else, give preference to the address
 304          * supplied on the command line
 305          */
 306         address = g_settings->get("address");
 307         if (game_params.world_path != "" && !skip_main_menu)
 308                 address = "";
 309         else if (cmd_args.exists("address"))
 310                 address = cmd_args.get("address");
 311
 312         playername = g_settings->get("name");
 313         if (cmd_args.exists("name"))
 314                 playername = cmd_args.get("name");
 315
 316         list_video_modes = cmd_args.getFlag("videomodes");
 317
 318         use_freetype = g_settings->getBool("freetype");
 319
 320         random_input = g_settings->getBool("random_input")
 321                         || cmd_args.getFlag("random-input");
 322 }
 323
 324 bool ClientLauncher::init_engine(int log_level)
 325 {
 326         receiver = new MyEventReceiver();
 327         create_engine_device(log_level);
 328         return device != NULL;
 329 }
 330
 331 bool ClientLauncher::launch_game(std::string &error_message,
 332                 bool reconnect_requested, GameParams &game_params,
 333                 const Settings &cmd_args)
 334 {
 335         // Initialize menu data
 336         MainMenuData menudata;
 337         menudata.address                         = address;
 338         menudata.name                            = playername;
 339         menudata.port                            = itos(game_params.socket_port);
 340         menudata.script_data.errormessage        = error_message;
 341         menudata.script_data.reconnect_requested = reconnect_requested;
 342
 343         error_message.clear();
 344
 345         if (cmd_args.exists("password"))
 346                 menudata.password = cmd_args.get("password");
 347
 348         menudata.enable_public = g_settings->getBool("server_announce");
 349
 350         // If a world was commanded, append and select it
 351         if (game_params.world_path != "") {
 352                 worldspec.gameid = getWorldGameId(game_params.world_path, true);
 353                 worldspec.name = _("[--world parameter]");
 354
 355                 if (worldspec.gameid == "") {   // Create new
 356                         worldspec.gameid = g_settings->get("default_game");
 357                         worldspec.name += " [new]";
 358                 }
 359                 worldspec.path = game_params.world_path;
 360         }
 361
 362         /* Show the GUI menu
 363          */
 364         if (!skip_main_menu) {
 365                 main_menu(&menudata);
 366
 367                 // Skip further loading if there was an exit signal.
 368                 if (*porting::signal_handler_killstatus())
 369                         return false;
 370
 371                 address = menudata.address;
 372                 int newport = stoi(menudata.port);
 373                 if (newport != 0)
 374                         game_params.socket_port = newport;
 375
 376                 simple_singleplayer_mode = menudata.simple_singleplayer_mode;
 377
 378                 std::vector<WorldSpec> worldspecs = getAvailableWorlds();
 379
 380                 if (menudata.selected_world >= 0
 381                                 && menudata.selected_world < (int)worldspecs.size()) {
 382                         g_settings->set("selected_world_path",
 383                                         worldspecs[menudata.selected_world].path);
 384                         worldspec = worldspecs[menudata.selected_world];
 385                 }
 386         }
 387
 388         if (!menudata.script_data.errormessage.empty()) {
 389                 /* The calling function will pass this back into this function upon the
 390                  * next iteration (if any) causing it to be displayed by the GUI
 391                  */
 392                 error_message = menudata.script_data.errormessage;
 393                 return false;
 394         }
 395
 396         if (menudata.name == "")
 397                 menudata.name = std::string("Guest") + itos(myrand_range(1000, 9999));
 398         else
 399                 playername = menudata.name;
 400
 401         password = menudata.password;
 402
 403         g_settings->set("name", playername);
 404
 405         current_playername = playername;
 406         current_password   = password;
 407         current_address    = address;
 408         current_port       = game_params.socket_port;
 409
 410         // If using simple singleplayer mode, override
 411         if (simple_singleplayer_mode) {
 412                 assert(skip_main_menu == false);
 413                 current_playername = "singleplayer";
 414                 current_password = "";
 415                 current_address = "";
 416                 current_port = myrand_range(49152, 65535);
 417         } else if (address != "") {
 418                 ServerListSpec server;
 419                 server["name"] = menudata.servername;
 420                 server["address"] = menudata.address;
 421                 server["port"] = menudata.port;
 422                 server["description"] = menudata.serverdescription;
 423                 ServerList::insert(server);
 424         }
 425
 426         infostream << "Selected world: " << worldspec.name
 427                    << " [" << worldspec.path << "]" << std::endl;
 428
 429         if (current_address == "") { // If local game
 430                 if (worldspec.path == "") {
 431                         error_message = gettext("No world selected and no address "
 432                                         "provided. Nothing to do.");
 433                         errorstream << error_message << std::endl;
 434                         return false;
 435                 }
 436
 437                 if (!fs::PathExists(worldspec.path)) {
 438                         error_message = gettext("Provided world path doesn't exist: ")
 439                                         + worldspec.path;
 440                         errorstream << error_message << std::endl;
 441                         return false;
 442                 }
 443
 444                 // Load gamespec for required game
 445                 gamespec = findWorldSubgame(worldspec.path);
 446                 if (!gamespec.isValid() && !game_params.game_spec.isValid()) {
 447                         error_message = gettext("Could not find or load game \"")
 448                                         + worldspec.gameid + "\"";
 449                         errorstream << error_message << std::endl;
 450                         return false;
 451                 }
 452
 453                 if (porting::signal_handler_killstatus())
 454                         return true;
 455
 456                 if (game_params.game_spec.isValid() &&
 457                                 game_params.game_spec.id != worldspec.gameid) {
 458                         errorstream << "WARNING: Overriding gamespec from \""
 459                                     << worldspec.gameid << "\" to \""
 460                                     << game_params.game_spec.id << "\"" << std::endl;
 461                         gamespec = game_params.game_spec;
 462                 }
 463
 464                 if (!gamespec.isValid()) {
 465                         error_message = gettext("Invalid gamespec.");
 466                         error_message += " (world.gameid=" + worldspec.gameid + ")";
 467                         errorstream << error_message << std::endl;
 468                         return false;
 469                 }
 470         }
 471
 472         return true;
 473 }
 474
 475 void ClientLauncher::main_menu(MainMenuData *menudata)
 476 {
 477         bool *kill = porting::signal_handler_killstatus();
 478         video::IVideoDriver *driver = device->getVideoDriver();
 479
 480         infostream << "Waiting for other menus" << std::endl;
 481         while (device->run() && *kill == false) {
 482                 if (noMenuActive())
 483                         break;
 484                 driver->beginScene(true, true, video::SColor(255, 128, 128, 128));
 485                 guienv->drawAll();
 486                 driver->endScene();
 487                 // On some computers framerate doesn't seem to be automatically limited
 488                 sleep_ms(25);
 489         }
 490         infostream << "Waited for other menus" << std::endl;
 491
 492         // Cursor can be non-visible when coming from the game
 493 #ifndef ANDROID
 494         device->getCursorControl()->setVisible(true);
 495 #endif
 496
 497         /* show main menu */
 498         GUIEngine mymenu(device, guiroot, &g_menumgr, smgr, menudata, *kill);
 499
 500         smgr->clear();  /* leave scene manager in a clean state */
 501 }
 502
 503 bool ClientLauncher::create_engine_device(int log_level)
 504 {
 505         static const irr::ELOG_LEVEL irr_log_level[5] = {
 506                 ELL_NONE,
 507                 ELL_ERROR,
 508                 ELL_WARNING,
 509                 ELL_INFORMATION,
 510 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 8)
 511                 ELL_INFORMATION
 512 #else
 513                 ELL_DEBUG
 514 #endif
 515         };
 516
 517         // Resolution selection
 518         bool fullscreen = g_settings->getBool("fullscreen");
 519         u16 screenW = g_settings->getU16("screenW");
 520         u16 screenH = g_settings->getU16("screenH");
 521
 522         // bpp, fsaa, vsync
 523         bool vsync = g_settings->getBool("vsync");
 524         u16 bits = g_settings->getU16("fullscreen_bpp");
 525         u16 fsaa = g_settings->getU16("fsaa");
 526
 527         // Determine driver
 528         video::E_DRIVER_TYPE driverType = video::EDT_OPENGL;
 529         std::string driverstring = g_settings->get("video_driver");
 530         std::vector<video::E_DRIVER_TYPE> drivers
 531                 = porting::getSupportedVideoDrivers();
 532         u32 i;
 533         for (i = 0; i != drivers.size(); i++) {
 534                 if (!strcasecmp(driverstring.c_str(),
 535                         porting::getVideoDriverName(drivers[i]))) {
 536                         driverType = drivers[i];
 537                         break;
 538                 }
 539         }
 540         if (i == drivers.size()) {
 541                 errorstream << "Invalid video_driver specified; "
 542                         "defaulting to opengl" << std::endl;
 543         }
 544
 545         SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
 546         params.DriverType    = driverType;
 547         params.WindowSize    = core::dimension2d<u32>(screenW, screenH);
 548         params.Bits          = bits;
 549         params.AntiAlias     = fsaa;
 550         params.Fullscreen    = fullscreen;
 551         params.Stencilbuffer = false;
 552         params.Vsync         = vsync;
 553         params.EventReceiver = receiver;
 554         params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");
 555 #ifdef __ANDROID__
 556         params.PrivateData = porting::app_global;
 557         params.OGLES2ShaderPath = std::string(porting::path_user + DIR_DELIM +
 558                         "media" + DIR_DELIM + "Shaders" + DIR_DELIM).c_str();
 559 #endif
 560
 561         device = createDeviceEx(params);
 562
 563         if (device) {
 564                 // Map our log level to irrlicht engine one.
 565                 ILogger* irr_logger = device->getLogger();
 566                 irr_logger->setLogLevel(irr_log_level[log_level]);
 567
 568                 porting::initIrrlicht(device);
 569         }
 570
 571         return device != NULL;
 572 }
 573
 574 void ClientLauncher::speed_tests()
 575 {
 576         // volatile to avoid some potential compiler optimisations
 577         volatile static s16 temp16;
 578         volatile static f32 tempf;
 579         static v3f tempv3f1;
 580         static v3f tempv3f2;
 581         static std::string tempstring;
 582         static std::string tempstring2;
 583
 584         tempv3f1 = v3f();
 585         tempv3f2 = v3f();
 586         tempstring = std::string();
 587         tempstring2 = std::string();
 588
 589         {
 590                 infostream << "The following test should take around 20ms." << std::endl;
 591                 TimeTaker timer("Testing std::string speed");
 592                 const u32 jj = 10000;
 593                 for (u32 j = 0; j < jj; j++) {
 594                         tempstring = "";
 595                         tempstring2 = "";
 596                         const u32 ii = 10;
 597                         for (u32 i = 0; i < ii; i++) {
 598                                 tempstring2 += "asd";
 599                         }
 600                         for (u32 i = 0; i < ii+1; i++) {
 601                                 tempstring += "asd";
 602                                 if (tempstring == tempstring2)
 603                                         break;
 604                         }
 605                 }
 606         }
 607
 608         infostream << "All of the following tests should take around 100ms each."
 609                    << std::endl;
 610
 611         {
 612                 TimeTaker timer("Testing floating-point conversion speed");
 613                 tempf = 0.001;
 614                 for (u32 i = 0; i < 4000000; i++) {
 615                         temp16 += tempf;
 616                         tempf += 0.001;
 617                 }
 618         }
 619
 620         {
 621                 TimeTaker timer("Testing floating-point vector speed");
 622
 623                 tempv3f1 = v3f(1, 2, 3);
 624                 tempv3f2 = v3f(4, 5, 6);
 625                 for (u32 i = 0; i < 10000000; i++) {
 626                         tempf += tempv3f1.dotProduct(tempv3f2);
 627                         tempv3f2 += v3f(7, 8, 9);
 628                 }
 629         }
 630
 631         {
 632                 TimeTaker timer("Testing std::map speed");
 633
 634                 std::map<v2s16, f32> map1;
 635                 tempf = -324;
 636                 const s16 ii = 300;
 637                 for (s16 y = 0; y < ii; y++) {
 638                         for (s16 x = 0; x < ii; x++) {
 639                                 map1[v2s16(x, y)] =  tempf;
 640                                 tempf += 1;
 641                         }
 642                 }
 643                 for (s16 y = ii - 1; y >= 0; y--) {
 644                         for (s16 x = 0; x < ii; x++) {
 645                                 tempf = map1[v2s16(x, y)];
 646                         }
 647                 }
 648         }
 649
 650         {
 651                 infostream << "Around 5000/ms should do well here." << std::endl;
 652                 TimeTaker timer("Testing mutex speed");
 653
 654                 Mutex m;
 655                 u32 n = 0;
 656                 u32 i = 0;
 657                 do {
 658                         n += 10000;
 659                         for (; i < n; i++) {
 660                                 m.lock();
 661                                 m.unlock();
 662                         }
 663                 }
 664                 // Do at least 10ms
 665                 while(timer.getTimerTime() < 10);
 666
 667                 u32 dtime = timer.stop();
 668                 u32 per_ms = n / dtime;
 669                 infostream << "Done. " << dtime << "ms, " << per_ms << "/ms" << std::endl;
 670         }
 671 }
 672
 673 bool ClientLauncher::print_video_modes()
 674 {
 675         IrrlichtDevice *nulldevice;
 676
 677         bool vsync = g_settings->getBool("vsync");
 678         u16 fsaa = g_settings->getU16("fsaa");
 679         MyEventReceiver* receiver = new MyEventReceiver();
 680
 681         SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
 682         params.DriverType    = video::EDT_NULL;
 683         params.WindowSize    = core::dimension2d<u32>(640, 480);
 684         params.Bits          = 24;
 685         params.AntiAlias     = fsaa;
 686         params.Fullscreen    = false;
 687         params.Stencilbuffer = false;
 688         params.Vsync         = vsync;
 689         params.EventReceiver = receiver;
 690         params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");
 691
 692         nulldevice = createDeviceEx(params);
 693
 694         if (nulldevice == NULL) {
 695                 delete receiver;
 696                 return false;
 697         }
 698
 699         dstream << _("Available video modes (WxHxD):") << std::endl;
 700
 701         video::IVideoModeList *videomode_list = nulldevice->getVideoModeList();
 702
 703         if (videomode_list != NULL) {
 704                 s32 videomode_count = videomode_list->getVideoModeCount();
 705                 core::dimension2d<u32> videomode_res;
 706                 s32 videomode_depth;
 707                 for (s32 i = 0; i < videomode_count; ++i) {
 708                         videomode_res = videomode_list->getVideoModeResolution(i);
 709                         videomode_depth = videomode_list->getVideoModeDepth(i);
 710                         dstream << videomode_res.Width << "x" << videomode_res.Height
 711                                 << "x" << videomode_depth << std::endl;
 712                 }
 713
 714                 dstream << _("Active video mode (WxHxD):") << std::endl;
 715                 videomode_res = videomode_list->getDesktopResolution();
 716                 videomode_depth = videomode_list->getDesktopDepth();
 717                 dstream << videomode_res.Width << "x" << videomode_res.Height
 718                         << "x" << videomode_depth << std::endl;
 719
 720         }
 721
 722         nulldevice->drop();
 723         delete receiver;
 724
 725         return videomode_list != NULL;
 726 }