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
 174         bool first_loop = true;
 175
 176         /*
 177                 Menu-game loop
 178         */
 179         bool retval = true;
 180         bool *kill = porting::signal_handler_killstatus();
 181
 182         while (device->run() && !*kill && !g_gamecallback->shutdown_requested)
 183         {
 184                 // Set the window caption
 185                 const wchar_t *text = wgettext("Main Menu");
 186                 device->setWindowCaption((narrow_to_wide(PROJECT_NAME_C) + L" [" + text + L"]").c_str());
 187                 delete[] text;
 188
 189                 try {   // This is used for catching disconnects
 190
 191                         guienv->clear();
 192
 193                         /*
 194                                 We need some kind of a root node to be able to add
 195                                 custom gui elements directly on the screen.
 196                                 Otherwise they won't be automatically drawn.
 197                         */
 198                         guiroot = guienv->addStaticText(L"", core::rect<s32>(0, 0, 10000, 10000));
 199
 200                         bool game_has_run = launch_game(error_message, game_params, cmd_args);
 201
 202                         // If skip_main_menu, we only want to startup once
 203                         if (skip_main_menu && !first_loop)
 204                                 break;
 205
 206                         first_loop = false;
 207
 208                         if (!game_has_run) {
 209                                 if (skip_main_menu)
 210                                         break;
 211                                 else
 212                                         continue;
 213                         }
 214
 215                         // Break out of menu-game loop to shut down cleanly
 216                         if (!device->run() || *kill) {
 217                                 if (g_settings_path != "")
 218                                         g_settings->updateConfigFile(g_settings_path.c_str());
 219                                 break;
 220                         }
 221
 222                         if (current_playername.length() > PLAYERNAME_SIZE-1) {
 223                                 error_message = gettext("Player name too long.");
 224                                 playername = current_playername.substr(0, PLAYERNAME_SIZE-1);
 225                                 g_settings->set("name", playername);
 226                                 continue;
 227                         }
 228
 229                         device->getVideoDriver()->setTextureCreationFlag(
 230                                         video::ETCF_CREATE_MIP_MAPS, g_settings->getBool("mip_map"));
 231
 232 #ifdef HAVE_TOUCHSCREENGUI
 233                         receiver->m_touchscreengui = new TouchScreenGUI(device, receiver);
 234                         g_touchscreengui = receiver->m_touchscreengui;
 235 #endif
 236                         the_game(
 237                                 kill,
 238                                 random_input,
 239                                 input,
 240                                 device,
 241                                 worldspec.path,
 242                                 current_playername,
 243                                 current_password,
 244                                 current_address,
 245                                 current_port,
 246                                 error_message,
 247                                 chat_backend,
 248                                 gamespec,
 249                                 simple_singleplayer_mode
 250                         );
 251                         smgr->clear();
 252
 253 #ifdef HAVE_TOUCHSCREENGUI
 254                         delete g_touchscreengui;
 255                         g_touchscreengui = NULL;
 256                         receiver->m_touchscreengui = NULL;
 257 #endif
 258
 259                 } //try
 260                 catch (con::PeerNotFoundException &e) {
 261                         error_message = gettext("Connection error (timed out?)");
 262                         errorstream << error_message << std::endl;
 263                 }
 264
 265 #ifdef NDEBUG
 266                 catch (std::exception &e) {
 267                         std::string error_message = "Some exception: \"";
 268                         error_message += e.what();
 269                         error_message += "\"";
 270                         errorstream << error_message << std::endl;
 271                 }
 272 #endif
 273
 274                 // If no main menu, show error and exit
 275                 if (skip_main_menu) {
 276                         if (!error_message.empty()) {
 277                                 verbosestream << "error_message = "
 278                                               << error_message << std::endl;
 279                                 retval = false;
 280                         }
 281                         break;
 282                 }
 283         } // Menu-game loop
 284
 285         g_menuclouds->drop();
 286         g_menucloudsmgr->drop();
 287
 288         return retval;
 289 }
 290
 291 void ClientLauncher::init_args(GameParams &game_params, const Settings &cmd_args)
 292 {
 293
 294         skip_main_menu = cmd_args.getFlag("go");
 295
 296         // FIXME: This is confusing (but correct)
 297
 298         /* If world_path is set then override it unless skipping the main menu using
 299          * the --go command line param. Else, give preference to the address
 300          * supplied on the command line
 301          */
 302         address = g_settings->get("address");
 303         if (game_params.world_path != "" && !skip_main_menu)
 304                 address = "";
 305         else if (cmd_args.exists("address"))
 306                 address = cmd_args.get("address");
 307
 308         playername = g_settings->get("name");
 309         if (cmd_args.exists("name"))
 310                 playername = cmd_args.get("name");
 311
 312         list_video_modes = cmd_args.getFlag("videomodes");
 313
 314         use_freetype = g_settings->getBool("freetype");
 315
 316         random_input = g_settings->getBool("random_input")
 317                         || cmd_args.getFlag("random-input");
 318 }
 319
 320 bool ClientLauncher::init_engine(int log_level)
 321 {
 322         receiver = new MyEventReceiver();
 323         create_engine_device(log_level);
 324         return device != NULL;
 325 }
 326
 327 bool ClientLauncher::launch_game(std::string &error_message,
 328                 GameParams &game_params, const Settings &cmd_args)
 329 {
 330         // Initialize menu data
 331         MainMenuData menudata;
 332         menudata.address      = address;
 333         menudata.name         = playername;
 334         menudata.port         = itos(game_params.socket_port);
 335         menudata.errormessage = error_message;
 336
 337         error_message.clear();
 338
 339         if (cmd_args.exists("password"))
 340                 menudata.password = cmd_args.get("password");
 341
 342         menudata.enable_public = g_settings->getBool("server_announce");
 343
 344         // If a world was commanded, append and select it
 345         if (game_params.world_path != "") {
 346                 worldspec.gameid = getWorldGameId(game_params.world_path, true);
 347                 worldspec.name = _("[--world parameter]");
 348
 349                 if (worldspec.gameid == "") {   // Create new
 350                         worldspec.gameid = g_settings->get("default_game");
 351                         worldspec.name += " [new]";
 352                 }
 353                 worldspec.path = game_params.world_path;
 354         }
 355
 356         /* Show the GUI menu
 357          */
 358         if (!skip_main_menu) {
 359                 main_menu(&menudata);
 360
 361                 // Skip further loading if there was an exit signal.
 362                 if (*porting::signal_handler_killstatus())
 363                         return false;
 364
 365                 address = menudata.address;
 366                 int newport = stoi(menudata.port);
 367                 if (newport != 0)
 368                         game_params.socket_port = newport;
 369
 370                 simple_singleplayer_mode = menudata.simple_singleplayer_mode;
 371
 372                 std::vector<WorldSpec> worldspecs = getAvailableWorlds();
 373
 374                 if (menudata.selected_world >= 0
 375                                 && menudata.selected_world < (int)worldspecs.size()) {
 376                         g_settings->set("selected_world_path",
 377                                         worldspecs[menudata.selected_world].path);
 378                         worldspec = worldspecs[menudata.selected_world];
 379                 }
 380         }
 381
 382         if (!menudata.errormessage.empty()) {
 383                 /* The calling function will pass this back into this function upon the
 384                  * next iteration (if any) causing it to be displayed by the GUI
 385                  */
 386                 error_message = menudata.errormessage;
 387                 return false;
 388         }
 389
 390         if (menudata.name == "")
 391                 menudata.name = std::string("Guest") + itos(myrand_range(1000, 9999));
 392         else
 393                 playername = menudata.name;
 394
 395         password = menudata.password;
 396
 397         g_settings->set("name", playername);
 398
 399         current_playername = playername;
 400         current_password   = password;
 401         current_address    = address;
 402         current_port       = game_params.socket_port;
 403
 404         // If using simple singleplayer mode, override
 405         if (simple_singleplayer_mode) {
 406                 assert(skip_main_menu == false);
 407                 current_playername = "singleplayer";
 408                 current_password = "";
 409                 current_address = "";
 410                 current_port = myrand_range(49152, 65535);
 411         } else if (address != "") {
 412                 ServerListSpec server;
 413                 server["name"] = menudata.servername;
 414                 server["address"] = menudata.address;
 415                 server["port"] = menudata.port;
 416                 server["description"] = menudata.serverdescription;
 417                 ServerList::insert(server);
 418         }
 419
 420         infostream << "Selected world: " << worldspec.name
 421                    << " [" << worldspec.path << "]" << std::endl;
 422
 423         if (current_address == "") { // If local game
 424                 if (worldspec.path == "") {
 425                         error_message = gettext("No world selected and no address "
 426                                         "provided. Nothing to do.");
 427                         errorstream << error_message << std::endl;
 428                         return false;
 429                 }
 430
 431                 if (!fs::PathExists(worldspec.path)) {
 432                         error_message = gettext("Provided world path doesn't exist: ")
 433                                         + worldspec.path;
 434                         errorstream << error_message << std::endl;
 435                         return false;
 436                 }
 437
 438                 // Load gamespec for required game
 439                 gamespec = findWorldSubgame(worldspec.path);
 440                 if (!gamespec.isValid() && !game_params.game_spec.isValid()) {
 441                         error_message = gettext("Could not find or load game \"")
 442                                         + worldspec.gameid + "\"";
 443                         errorstream << error_message << std::endl;
 444                         return false;
 445                 }
 446
 447                 if (porting::signal_handler_killstatus())
 448                         return true;
 449
 450                 if (game_params.game_spec.isValid() &&
 451                                 game_params.game_spec.id != worldspec.gameid) {
 452                         errorstream << "WARNING: Overriding gamespec from \""
 453                                     << worldspec.gameid << "\" to \""
 454                                     << game_params.game_spec.id << "\"" << std::endl;
 455                         gamespec = game_params.game_spec;
 456                 }
 457
 458                 if (!gamespec.isValid()) {
 459                         error_message = gettext("Invalid gamespec.");
 460                         error_message += " (world.gameid=" + worldspec.gameid + ")";
 461                         errorstream << error_message << std::endl;
 462                         return false;
 463                 }
 464         }
 465
 466         return true;
 467 }
 468
 469 void ClientLauncher::main_menu(MainMenuData *menudata)
 470 {
 471         bool *kill = porting::signal_handler_killstatus();
 472         video::IVideoDriver *driver = device->getVideoDriver();
 473
 474         infostream << "Waiting for other menus" << std::endl;
 475         while (device->run() && *kill == false) {
 476                 if (noMenuActive())
 477                         break;
 478                 driver->beginScene(true, true, video::SColor(255, 128, 128, 128));
 479                 guienv->drawAll();
 480                 driver->endScene();
 481                 // On some computers framerate doesn't seem to be automatically limited
 482                 sleep_ms(25);
 483         }
 484         infostream << "Waited for other menus" << std::endl;
 485
 486         // Cursor can be non-visible when coming from the game
 487 #ifndef ANDROID
 488         device->getCursorControl()->setVisible(true);
 489 #endif
 490
 491         /* show main menu */
 492         GUIEngine mymenu(device, guiroot, &g_menumgr, smgr, menudata, *kill);
 493
 494         smgr->clear();  /* leave scene manager in a clean state */
 495 }
 496
 497 bool ClientLauncher::create_engine_device(int log_level)
 498 {
 499         static const irr::ELOG_LEVEL irr_log_level[5] = {
 500                 ELL_NONE,
 501                 ELL_ERROR,
 502                 ELL_WARNING,
 503                 ELL_INFORMATION,
 504 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 8)
 505                 ELL_INFORMATION
 506 #else
 507                 ELL_DEBUG
 508 #endif
 509         };
 510
 511         // Resolution selection
 512         bool fullscreen = g_settings->getBool("fullscreen");
 513         u16 screenW = g_settings->getU16("screenW");
 514         u16 screenH = g_settings->getU16("screenH");
 515
 516         // bpp, fsaa, vsync
 517         bool vsync = g_settings->getBool("vsync");
 518         u16 bits = g_settings->getU16("fullscreen_bpp");
 519         u16 fsaa = g_settings->getU16("fsaa");
 520
 521         // Determine driver
 522         video::E_DRIVER_TYPE driverType = video::EDT_OPENGL;
 523         std::string driverstring = g_settings->get("video_driver");
 524         std::vector<video::E_DRIVER_TYPE> drivers
 525                 = porting::getSupportedVideoDrivers();
 526         u32 i;
 527         for (i = 0; i != drivers.size(); i++) {
 528                 if (!strcasecmp(driverstring.c_str(),
 529                         porting::getVideoDriverName(drivers[i]))) {
 530                         driverType = drivers[i];
 531                         break;
 532                 }
 533         }
 534         if (i == drivers.size()) {
 535                 errorstream << "Invalid video_driver specified; "
 536                         "defaulting to opengl" << std::endl;
 537         }
 538
 539         SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
 540         params.DriverType    = driverType;
 541         params.WindowSize    = core::dimension2d<u32>(screenW, screenH);
 542         params.Bits          = bits;
 543         params.AntiAlias     = fsaa;
 544         params.Fullscreen    = fullscreen;
 545         params.Stencilbuffer = false;
 546         params.Vsync         = vsync;
 547         params.EventReceiver = receiver;
 548         params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");
 549 #ifdef __ANDROID__
 550         params.PrivateData = porting::app_global;
 551         params.OGLES2ShaderPath = std::string(porting::path_user + DIR_DELIM +
 552                         "media" + DIR_DELIM + "Shaders" + DIR_DELIM).c_str();
 553 #endif
 554
 555         device = createDeviceEx(params);
 556
 557         if (device) {
 558                 // Map our log level to irrlicht engine one.
 559                 ILogger* irr_logger = device->getLogger();
 560                 irr_logger->setLogLevel(irr_log_level[log_level]);
 561
 562                 porting::initIrrlicht(device);
 563         }
 564
 565         return device != NULL;
 566 }
 567
 568 void ClientLauncher::speed_tests()
 569 {
 570         // volatile to avoid some potential compiler optimisations
 571         volatile static s16 temp16;
 572         volatile static f32 tempf;
 573         static v3f tempv3f1;
 574         static v3f tempv3f2;
 575         static std::string tempstring;
 576         static std::string tempstring2;
 577
 578         tempv3f1 = v3f();
 579         tempv3f2 = v3f();
 580         tempstring = std::string();
 581         tempstring2 = std::string();
 582
 583         {
 584                 infostream << "The following test should take around 20ms." << std::endl;
 585                 TimeTaker timer("Testing std::string speed");
 586                 const u32 jj = 10000;
 587                 for (u32 j = 0; j < jj; j++) {
 588                         tempstring = "";
 589                         tempstring2 = "";
 590                         const u32 ii = 10;
 591                         for (u32 i = 0; i < ii; i++) {
 592                                 tempstring2 += "asd";
 593                         }
 594                         for (u32 i = 0; i < ii+1; i++) {
 595                                 tempstring += "asd";
 596                                 if (tempstring == tempstring2)
 597                                         break;
 598                         }
 599                 }
 600         }
 601
 602         infostream << "All of the following tests should take around 100ms each."
 603                    << std::endl;
 604
 605         {
 606                 TimeTaker timer("Testing floating-point conversion speed");
 607                 tempf = 0.001;
 608                 for (u32 i = 0; i < 4000000; i++) {
 609                         temp16 += tempf;
 610                         tempf += 0.001;
 611                 }
 612         }
 613
 614         {
 615                 TimeTaker timer("Testing floating-point vector speed");
 616
 617                 tempv3f1 = v3f(1, 2, 3);
 618                 tempv3f2 = v3f(4, 5, 6);
 619                 for (u32 i = 0; i < 10000000; i++) {
 620                         tempf += tempv3f1.dotProduct(tempv3f2);
 621                         tempv3f2 += v3f(7, 8, 9);
 622                 }
 623         }
 624
 625         {
 626                 TimeTaker timer("Testing std::map speed");
 627
 628                 std::map<v2s16, f32> map1;
 629                 tempf = -324;
 630                 const s16 ii = 300;
 631                 for (s16 y = 0; y < ii; y++) {
 632                         for (s16 x = 0; x < ii; x++) {
 633                                 map1[v2s16(x, y)] =  tempf;
 634                                 tempf += 1;
 635                         }
 636                 }
 637                 for (s16 y = ii - 1; y >= 0; y--) {
 638                         for (s16 x = 0; x < ii; x++) {
 639                                 tempf = map1[v2s16(x, y)];
 640                         }
 641                 }
 642         }
 643
 644         {
 645                 infostream << "Around 5000/ms should do well here." << std::endl;
 646                 TimeTaker timer("Testing mutex speed");
 647
 648                 JMutex m;
 649                 u32 n = 0;
 650                 u32 i = 0;
 651                 do {
 652                         n += 10000;
 653                         for (; i < n; i++) {
 654                                 m.Lock();
 655                                 m.Unlock();
 656                         }
 657                 }
 658                 // Do at least 10ms
 659                 while(timer.getTimerTime() < 10);
 660
 661                 u32 dtime = timer.stop();
 662                 u32 per_ms = n / dtime;
 663                 infostream << "Done. " << dtime << "ms, " << per_ms << "/ms" << std::endl;
 664         }
 665 }
 666
 667 bool ClientLauncher::print_video_modes()
 668 {
 669         IrrlichtDevice *nulldevice;
 670
 671         bool vsync = g_settings->getBool("vsync");
 672         u16 fsaa = g_settings->getU16("fsaa");
 673         MyEventReceiver* receiver = new MyEventReceiver();
 674
 675         SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
 676         params.DriverType    = video::EDT_NULL;
 677         params.WindowSize    = core::dimension2d<u32>(640, 480);
 678         params.Bits          = 24;
 679         params.AntiAlias     = fsaa;
 680         params.Fullscreen    = false;
 681         params.Stencilbuffer = false;
 682         params.Vsync         = vsync;
 683         params.EventReceiver = receiver;
 684         params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");
 685
 686         nulldevice = createDeviceEx(params);
 687
 688         if (nulldevice == NULL) {
 689                 delete receiver;
 690                 return false;
 691         }
 692
 693         dstream << _("Available video modes (WxHxD):") << std::endl;
 694
 695         video::IVideoModeList *videomode_list = nulldevice->getVideoModeList();
 696
 697         if (videomode_list != NULL) {
 698                 s32 videomode_count = videomode_list->getVideoModeCount();
 699                 core::dimension2d<u32> videomode_res;
 700                 s32 videomode_depth;
 701                 for (s32 i = 0; i < videomode_count; ++i) {
 702                         videomode_res = videomode_list->getVideoModeResolution(i);
 703                         videomode_depth = videomode_list->getVideoModeDepth(i);
 704                         dstream << videomode_res.Width << "x" << videomode_res.Height
 705                                 << "x" << videomode_depth << std::endl;
 706                 }
 707
 708                 dstream << _("Active video mode (WxHxD):") << std::endl;
 709                 videomode_res = videomode_list->getDesktopResolution();
 710                 videomode_depth = videomode_list->getDesktopDepth();
 711                 dstream << videomode_res.Width << "x" << videomode_res.Height
 712                         << "x" << videomode_depth << std::endl;
 713
 714         }
 715
 716         nulldevice->drop();
 717         delete receiver;
 718
 719         return videomode_list != NULL;
 720 }