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