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