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 "joystick_controller.h"
  36 #include "clientlauncher.h"
  37 #include "version.h"
  38
  39 /* mainmenumanager.h
  40  */
  41 gui::IGUIEnvironment *guienv = NULL;
  42 gui::IGUIStaticText *guiroot = NULL;
  43 MainMenuManager g_menumgr;
  44
  45 bool isMenuActive()
  46 {
  47         return g_menumgr.menuCount() != 0;
  48 }
  49
  50 // Passed to menus to allow disconnecting and exiting
  51 MainGameCallback *g_gamecallback = NULL;
  52
  53
  54 ClientLauncher::~ClientLauncher()
  55 {
  56         delete receiver;
  57
  58         delete input;
  59
  60         delete g_fontengine;
  61
  62         if (device)
  63                 device->drop();
  64 }
  65
  66
  67 bool ClientLauncher::run(GameParams &game_params, const Settings &cmd_args)
  68 {
  69         init_args(game_params, cmd_args);
  70
  71         // List video modes if requested
  72         if (list_video_modes)
  73                 return print_video_modes();
  74
  75         if (!init_engine()) {
  76                 errorstream << "Could not initialize game engine." << std::endl;
  77                 return false;
  78         }
  79
  80         // Speed tests (done after irrlicht is loaded to get timer)
  81         if (cmd_args.getFlag("speedtests")) {
  82                 dstream << "Running speed tests" << std::endl;
  83                 speed_tests();
  84                 return true;
  85         }
  86
  87         video::IVideoDriver *video_driver = device->getVideoDriver();
  88         if (video_driver == NULL) {
  89                 errorstream << "Could not initialize video driver." << std::endl;
  90                 return false;
  91         }
  92
  93         porting::setXorgClassHint(video_driver->getExposedVideoData(), PROJECT_NAME_C);
  94
  95         porting::setWindowIcon(device);
  96
  97         /*
  98                 This changes the minimum allowed number of vertices in a VBO.
  99                 Default is 500.
 100         */
 101         //driver->setMinHardwareBufferVertexCount(50);
 102
 103         // Create game callback for menus
 104         g_gamecallback = new MainGameCallback(device);
 105
 106         device->setResizable(true);
 107
 108         init_input();
 109
 110         smgr = device->getSceneManager();
 111         smgr->getParameters()->setAttribute(scene::ALLOW_ZWRITE_ON_TRANSPARENT, true);
 112
 113         guienv = device->getGUIEnvironment();
 114         skin = guienv->getSkin();
 115         skin->setColor(gui::EGDC_BUTTON_TEXT, video::SColor(255, 255, 255, 255));
 116         skin->setColor(gui::EGDC_3D_LIGHT, video::SColor(0, 0, 0, 0));
 117         skin->setColor(gui::EGDC_3D_HIGH_LIGHT, video::SColor(255, 30, 30, 30));
 118         skin->setColor(gui::EGDC_3D_SHADOW, video::SColor(255, 0, 0, 0));
 119         skin->setColor(gui::EGDC_HIGH_LIGHT, video::SColor(255, 70, 120, 50));
 120         skin->setColor(gui::EGDC_HIGH_LIGHT_TEXT, video::SColor(255, 255, 255, 255));
 121
 122         g_fontengine = new FontEngine(g_settings, guienv);
 123         FATAL_ERROR_IF(g_fontengine == NULL, "Font engine creation failed.");
 124
 125 #if (IRRLICHT_VERSION_MAJOR >= 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR >= 2
 126         // Irrlicht 1.8 input colours
 127         skin->setColor(gui::EGDC_EDITABLE, video::SColor(255, 128, 128, 128));
 128         skin->setColor(gui::EGDC_FOCUSED_EDITABLE, video::SColor(255, 96, 134, 49));
 129 #endif
 130
 131         // Create the menu clouds
 132         if (!g_menucloudsmgr)
 133                 g_menucloudsmgr = smgr->createNewSceneManager();
 134         if (!g_menuclouds)
 135                 g_menuclouds = new Clouds(g_menucloudsmgr->getRootSceneNode(),
 136                                 g_menucloudsmgr, -1, rand(), 100);
 137         g_menuclouds->update(v2f(0, 0), video::SColor(255, 200, 200, 255));
 138         scene::ICameraSceneNode* camera;
 139         camera = g_menucloudsmgr->addCameraSceneNode(0,
 140                                 v3f(0, 0, 0), v3f(0, 60, 100));
 141         camera->setFarValue(10000);
 142
 143         /*
 144                 GUI stuff
 145         */
 146
 147         ChatBackend chat_backend;
 148
 149         // If an error occurs, this is set to something by menu().
 150         // It is then displayed before the menu shows on the next call to menu()
 151         std::string error_message;
 152         bool reconnect_requested = false;
 153
 154         bool first_loop = true;
 155
 156         /*
 157                 Menu-game loop
 158         */
 159         bool retval = true;
 160         bool *kill = porting::signal_handler_killstatus();
 161
 162         while (device->run() && !*kill && !g_gamecallback->shutdown_requested)
 163         {
 164                 // Set the window caption
 165                 const wchar_t *text = wgettext("Main Menu");
 166                 device->setWindowCaption((utf8_to_wide(PROJECT_NAME_C) +
 167                         L" " + utf8_to_wide(g_version_hash) +
 168                         L" [" + text + L"]").c_str());
 169                 delete[] text;
 170
 171                 try {   // This is used for catching disconnects
 172
 173                         guienv->clear();
 174
 175                         /*
 176                                 We need some kind of a root node to be able to add
 177                                 custom gui elements directly on the screen.
 178                                 Otherwise they won't be automatically drawn.
 179                         */
 180                         guiroot = guienv->addStaticText(L"", core::rect<s32>(0, 0, 10000, 10000));
 181
 182                         bool game_has_run = launch_game(error_message, reconnect_requested,
 183                                 game_params, cmd_args);
 184
 185                         // Reset the reconnect_requested flag
 186                         reconnect_requested = false;
 187
 188                         // If skip_main_menu, we only want to startup once
 189                         if (skip_main_menu && !first_loop)
 190                                 break;
 191
 192                         first_loop = false;
 193
 194                         if (!game_has_run) {
 195                                 if (skip_main_menu)
 196                                         break;
 197                                 else
 198                                         continue;
 199                         }
 200
 201                         // Break out of menu-game loop to shut down cleanly
 202                         if (!device->run() || *kill) {
 203                                 if (g_settings_path != "")
 204                                         g_settings->updateConfigFile(g_settings_path.c_str());
 205                                 break;
 206                         }
 207
 208                         if (current_playername.length() > PLAYERNAME_SIZE-1) {
 209                                 error_message = gettext("Player name too long.");
 210                                 playername = current_playername.substr(0, PLAYERNAME_SIZE-1);
 211                                 g_settings->set("name", playername);
 212                                 continue;
 213                         }
 214
 215                         device->getVideoDriver()->setTextureCreationFlag(
 216                                         video::ETCF_CREATE_MIP_MAPS, g_settings->getBool("mip_map"));
 217
 218 #ifdef HAVE_TOUCHSCREENGUI
 219                         receiver->m_touchscreengui = new TouchScreenGUI(device, receiver);
 220                         g_touchscreengui = receiver->m_touchscreengui;
 221 #endif
 222
 223                         the_game(
 224                                 kill,
 225                                 random_input,
 226                                 input,
 227                                 device,
 228                                 worldspec.path,
 229                                 current_playername,
 230                                 current_password,
 231                                 current_address,
 232                                 current_port,
 233                                 error_message,
 234                                 chat_backend,
 235                                 &reconnect_requested,
 236                                 gamespec,
 237                                 simple_singleplayer_mode
 238                         );
 239                         smgr->clear();
 240
 241 #ifdef HAVE_TOUCHSCREENGUI
 242                         delete g_touchscreengui;
 243                         g_touchscreengui = NULL;
 244                         receiver->m_touchscreengui = NULL;
 245 #endif
 246
 247                 } //try
 248                 catch (con::PeerNotFoundException &e) {
 249                         error_message = gettext("Connection error (timed out?)");
 250                         errorstream << error_message << std::endl;
 251                 }
 252
 253 #ifdef NDEBUG
 254                 catch (std::exception &e) {
 255                         std::string error_message = "Some exception: \"";
 256                         error_message += e.what();
 257                         error_message += "\"";
 258                         errorstream << error_message << std::endl;
 259                 }
 260 #endif
 261
 262                 // If no main menu, show error and exit
 263                 if (skip_main_menu) {
 264                         if (!error_message.empty()) {
 265                                 verbosestream << "error_message = "
 266                                               << error_message << std::endl;
 267                                 retval = false;
 268                         }
 269                         break;
 270                 }
 271         } // Menu-game loop
 272
 273         g_menuclouds->drop();
 274         g_menucloudsmgr->drop();
 275
 276         return retval;
 277 }
 278
 279 void ClientLauncher::init_args(GameParams &game_params, const Settings &cmd_args)
 280 {
 281
 282         skip_main_menu = cmd_args.getFlag("go");
 283
 284         // FIXME: This is confusing (but correct)
 285
 286         /* If world_path is set then override it unless skipping the main menu using
 287          * the --go command line param. Else, give preference to the address
 288          * supplied on the command line
 289          */
 290         address = g_settings->get("address");
 291         if (game_params.world_path != "" && !skip_main_menu)
 292                 address = "";
 293         else if (cmd_args.exists("address"))
 294                 address = cmd_args.get("address");
 295
 296         playername = g_settings->get("name");
 297         if (cmd_args.exists("name"))
 298                 playername = cmd_args.get("name");
 299
 300         list_video_modes = cmd_args.getFlag("videomodes");
 301
 302         use_freetype = g_settings->getBool("freetype");
 303
 304         random_input = g_settings->getBool("random_input")
 305                         || cmd_args.getFlag("random-input");
 306 }
 307
 308 bool ClientLauncher::init_engine()
 309 {
 310         receiver = new MyEventReceiver();
 311         create_engine_device();
 312         return device != NULL;
 313 }
 314
 315 void ClientLauncher::init_input()
 316 {
 317         if (random_input)
 318                 input = new RandomInputHandler();
 319         else
 320                 input = new RealInputHandler(device, receiver);
 321
 322         if (g_settings->getBool("enable_joysticks")) {
 323                 irr::core::array<irr::SJoystickInfo> infos;
 324                 std::vector<irr::SJoystickInfo> joystick_infos;
 325
 326                 // Make sure this is called maximum once per
 327                 // irrlicht device, otherwise it will give you
 328                 // multiple events for the same joystick.
 329                 if (device->activateJoysticks(infos)) {
 330                         infostream << "Joystick support enabled" << std::endl;
 331                         joystick_infos.reserve(infos.size());
 332                         for (u32 i = 0; i < infos.size(); i++) {
 333                                 joystick_infos.push_back(infos[i]);
 334                         }
 335                         input->joystick.onJoystickConnect(joystick_infos);
 336                 } else {
 337                         errorstream << "Could not activate joystick support." << std::endl;
 338                 }
 339         }
 340 }
 341
 342 bool ClientLauncher::launch_game(std::string &error_message,
 343                 bool reconnect_requested, GameParams &game_params,
 344                 const Settings &cmd_args)
 345 {
 346         // Initialize menu data
 347         MainMenuData menudata;
 348         menudata.address                         = address;
 349         menudata.name                            = playername;
 350         menudata.password                        = password;
 351         menudata.port                            = itos(game_params.socket_port);
 352         menudata.script_data.errormessage        = error_message;
 353         menudata.script_data.reconnect_requested = reconnect_requested;
 354
 355         error_message.clear();
 356
 357         if (cmd_args.exists("password"))
 358                 menudata.password = cmd_args.get("password");
 359
 360         menudata.enable_public = g_settings->getBool("server_announce");
 361
 362         // If a world was commanded, append and select it
 363         if (game_params.world_path != "") {
 364                 worldspec.gameid = getWorldGameId(game_params.world_path, true);
 365                 worldspec.name = _("[--world parameter]");
 366
 367                 if (worldspec.gameid == "") {   // Create new
 368                         worldspec.gameid = g_settings->get("default_game");
 369                         worldspec.name += " [new]";
 370                 }
 371                 worldspec.path = game_params.world_path;
 372         }
 373
 374         /* Show the GUI menu
 375          */
 376         if (!skip_main_menu) {
 377                 main_menu(&menudata);
 378
 379                 // Skip further loading if there was an exit signal.
 380                 if (*porting::signal_handler_killstatus())
 381                         return false;
 382
 383                 address = menudata.address;
 384                 int newport = stoi(menudata.port);
 385                 if (newport != 0)
 386                         game_params.socket_port = newport;
 387
 388                 simple_singleplayer_mode = menudata.simple_singleplayer_mode;
 389
 390                 std::vector<WorldSpec> worldspecs = getAvailableWorlds();
 391
 392                 if (menudata.selected_world >= 0
 393                                 && menudata.selected_world < (int)worldspecs.size()) {
 394                         g_settings->set("selected_world_path",
 395                                         worldspecs[menudata.selected_world].path);
 396                         worldspec = worldspecs[menudata.selected_world];
 397                 }
 398         }
 399
 400         if (!menudata.script_data.errormessage.empty()) {
 401                 /* The calling function will pass this back into this function upon the
 402                  * next iteration (if any) causing it to be displayed by the GUI
 403                  */
 404                 error_message = menudata.script_data.errormessage;
 405                 return false;
 406         }
 407
 408         if (menudata.name == "" && !simple_singleplayer_mode) {
 409                 error_message = gettext("Please choose a name!");
 410                 return false;
 411         }
 412
 413         playername = menudata.name;
 414         password = menudata.password;
 415
 416         current_playername = playername;
 417         current_password   = password;
 418         current_address    = address;
 419         current_port       = game_params.socket_port;
 420
 421         // If using simple singleplayer mode, override
 422         if (simple_singleplayer_mode) {
 423                 assert(skip_main_menu == false);
 424                 current_playername = "singleplayer";
 425                 current_password = "";
 426                 current_address = "";
 427                 current_port = myrand_range(49152, 65535);
 428         } else {
 429                 g_settings->set("name", playername);
 430                 if (address != "") {
 431                         ServerListSpec server;
 432                         server["name"] = menudata.servername;
 433                         server["address"] = menudata.address;
 434                         server["port"] = menudata.port;
 435                         server["description"] = menudata.serverdescription;
 436                         ServerList::insert(server);
 437                 }
 438         }
 439
 440         infostream << "Selected world: " << worldspec.name
 441                    << " [" << worldspec.path << "]" << std::endl;
 442
 443         if (current_address == "") { // If local game
 444                 if (worldspec.path == "") {
 445                         error_message = gettext("No world selected and no address "
 446                                         "provided. Nothing to do.");
 447                         errorstream << error_message << std::endl;
 448                         return false;
 449                 }
 450
 451                 if (!fs::PathExists(worldspec.path)) {
 452                         error_message = gettext("Provided world path doesn't exist: ")
 453                                         + worldspec.path;
 454                         errorstream << error_message << std::endl;
 455                         return false;
 456                 }
 457
 458                 // Load gamespec for required game
 459                 gamespec = findWorldSubgame(worldspec.path);
 460                 if (!gamespec.isValid() && !game_params.game_spec.isValid()) {
 461                         error_message = gettext("Could not find or load game \"")
 462                                         + worldspec.gameid + "\"";
 463                         errorstream << error_message << std::endl;
 464                         return false;
 465                 }
 466
 467                 if (porting::signal_handler_killstatus())
 468                         return true;
 469
 470                 if (game_params.game_spec.isValid() &&
 471                                 game_params.game_spec.id != worldspec.gameid) {
 472                         warningstream << "Overriding gamespec from \""
 473                                     << worldspec.gameid << "\" to \""
 474                                     << game_params.game_spec.id << "\"" << std::endl;
 475                         gamespec = game_params.game_spec;
 476                 }
 477
 478                 if (!gamespec.isValid()) {
 479                         error_message = gettext("Invalid gamespec.");
 480                         error_message += " (world.gameid=" + worldspec.gameid + ")";
 481                         errorstream << error_message << std::endl;
 482                         return false;
 483                 }
 484         }
 485
 486         return true;
 487 }
 488
 489 void ClientLauncher::main_menu(MainMenuData *menudata)
 490 {
 491         bool *kill = porting::signal_handler_killstatus();
 492         video::IVideoDriver *driver = device->getVideoDriver();
 493
 494         infostream << "Waiting for other menus" << std::endl;
 495         while (device->run() && *kill == false) {
 496                 if (!isMenuActive())
 497                         break;
 498                 driver->beginScene(true, true, video::SColor(255, 128, 128, 128));
 499                 guienv->drawAll();
 500                 driver->endScene();
 501                 // On some computers framerate doesn't seem to be automatically limited
 502                 sleep_ms(25);
 503         }
 504         infostream << "Waited for other menus" << std::endl;
 505
 506         // Cursor can be non-visible when coming from the game
 507 #ifndef ANDROID
 508         device->getCursorControl()->setVisible(true);
 509 #endif
 510
 511         /* show main menu */
 512         GUIEngine mymenu(device, &input->joystick, guiroot,
 513                 &g_menumgr, smgr, menudata, *kill);
 514
 515         smgr->clear();  /* leave scene manager in a clean state */
 516 }
 517
 518 bool ClientLauncher::create_engine_device()
 519 {
 520         // Resolution selection
 521         bool fullscreen = g_settings->getBool("fullscreen");
 522         u16 screen_w = g_settings->getU16("screen_w");
 523         u16 screen_h = g_settings->getU16("screen_h");
 524
 525         // bpp, fsaa, vsync
 526         bool vsync = g_settings->getBool("vsync");
 527         u16 bits = g_settings->getU16("fullscreen_bpp");
 528         u16 fsaa = g_settings->getU16("fsaa");
 529
 530         // stereo buffer required for pageflip stereo
 531         bool stereo_buffer = g_settings->get("3d_mode") == "pageflip";
 532
 533         // Determine driver
 534         video::E_DRIVER_TYPE driverType = video::EDT_OPENGL;
 535         const std::string &driverstring = g_settings->get("video_driver");
 536         std::vector<video::E_DRIVER_TYPE> drivers
 537                 = porting::getSupportedVideoDrivers();
 538         u32 i;
 539         for (i = 0; i != drivers.size(); i++) {
 540                 if (!strcasecmp(driverstring.c_str(),
 541                         porting::getVideoDriverName(drivers[i]))) {
 542                         driverType = drivers[i];
 543                         break;
 544                 }
 545         }
 546         if (i == drivers.size()) {
 547                 errorstream << "Invalid video_driver specified; "
 548                         "defaulting to opengl" << std::endl;
 549         }
 550
 551         SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
 552         params.DriverType    = driverType;
 553         params.WindowSize    = core::dimension2d<u32>(screen_w, screen_h);
 554         params.Bits          = bits;
 555         params.AntiAlias     = fsaa;
 556         params.Fullscreen    = fullscreen;
 557         params.Stencilbuffer = false;
 558         params.Stereobuffer  = stereo_buffer;
 559         params.Vsync         = vsync;
 560         params.EventReceiver = receiver;
 561         params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");
 562         params.ZBufferBits   = 24;
 563 #ifdef __ANDROID__
 564         params.PrivateData = porting::app_global;
 565         params.OGLES2ShaderPath = std::string(porting::path_user + DIR_DELIM +
 566                         "media" + DIR_DELIM + "Shaders" + DIR_DELIM).c_str();
 567 #endif
 568
 569         device = createDeviceEx(params);
 570
 571         if (device)
 572                 porting::initIrrlicht(device);
 573
 574         return device != NULL;
 575 }
 576
 577 void ClientLauncher::speed_tests()
 578 {
 579         // volatile to avoid some potential compiler optimisations
 580         volatile static s16 temp16;
 581         volatile static f32 tempf;
 582         static v3f tempv3f1;
 583         static v3f tempv3f2;
 584         static std::string tempstring;
 585         static std::string tempstring2;
 586
 587         tempv3f1 = v3f();
 588         tempv3f2 = v3f();
 589         tempstring = std::string();
 590         tempstring2 = std::string();
 591
 592         {
 593                 infostream << "The following test should take around 20ms." << std::endl;
 594                 TimeTaker timer("Testing std::string speed");
 595                 const u32 jj = 10000;
 596                 for (u32 j = 0; j < jj; j++) {
 597                         tempstring = "";
 598                         tempstring2 = "";
 599                         const u32 ii = 10;
 600                         for (u32 i = 0; i < ii; i++) {
 601                                 tempstring2 += "asd";
 602                         }
 603                         for (u32 i = 0; i < ii+1; i++) {
 604                                 tempstring += "asd";
 605                                 if (tempstring == tempstring2)
 606                                         break;
 607                         }
 608                 }
 609         }
 610
 611         infostream << "All of the following tests should take around 100ms each."
 612                    << std::endl;
 613
 614         {
 615                 TimeTaker timer("Testing floating-point conversion speed");
 616                 tempf = 0.001;
 617                 for (u32 i = 0; i < 4000000; i++) {
 618                         temp16 += tempf;
 619                         tempf += 0.001;
 620                 }
 621         }
 622
 623         {
 624                 TimeTaker timer("Testing floating-point vector speed");
 625
 626                 tempv3f1 = v3f(1, 2, 3);
 627                 tempv3f2 = v3f(4, 5, 6);
 628                 for (u32 i = 0; i < 10000000; i++) {
 629                         tempf += tempv3f1.dotProduct(tempv3f2);
 630                         tempv3f2 += v3f(7, 8, 9);
 631                 }
 632         }
 633
 634         {
 635                 TimeTaker timer("Testing std::map speed");
 636
 637                 std::map<v2s16, f32> map1;
 638                 tempf = -324;
 639                 const s16 ii = 300;
 640                 for (s16 y = 0; y < ii; y++) {
 641                         for (s16 x = 0; x < ii; x++) {
 642                                 map1[v2s16(x, y)] =  tempf;
 643                                 tempf += 1;
 644                         }
 645                 }
 646                 for (s16 y = ii - 1; y >= 0; y--) {
 647                         for (s16 x = 0; x < ii; x++) {
 648                                 tempf = map1[v2s16(x, y)];
 649                         }
 650                 }
 651         }
 652
 653         {
 654                 infostream << "Around 5000/ms should do well here." << std::endl;
 655                 TimeTaker timer("Testing mutex speed");
 656
 657                 std::mutex m;
 658                 u32 n = 0;
 659                 u32 i = 0;
 660                 do {
 661                         n += 10000;
 662                         for (; i < n; i++) {
 663                                 m.lock();
 664                                 m.unlock();
 665                         }
 666                 }
 667                 // Do at least 10ms
 668                 while(timer.getTimerTime() < 10);
 669
 670                 u32 dtime = timer.stop();
 671                 u32 per_ms = n / dtime;
 672                 infostream << "Done. " << dtime << "ms, " << per_ms << "/ms" << std::endl;
 673         }
 674 }
 675
 676 bool ClientLauncher::print_video_modes()
 677 {
 678         IrrlichtDevice *nulldevice;
 679
 680         bool vsync = g_settings->getBool("vsync");
 681         u16 fsaa = g_settings->getU16("fsaa");
 682         MyEventReceiver* receiver = new MyEventReceiver();
 683
 684         SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
 685         params.DriverType    = video::EDT_NULL;
 686         params.WindowSize    = core::dimension2d<u32>(640, 480);
 687         params.Bits          = 24;
 688         params.AntiAlias     = fsaa;
 689         params.Fullscreen    = false;
 690         params.Stencilbuffer = false;
 691         params.Vsync         = vsync;
 692         params.EventReceiver = receiver;
 693         params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");
 694
 695         nulldevice = createDeviceEx(params);
 696
 697         if (nulldevice == NULL) {
 698                 delete receiver;
 699                 return false;
 700         }
 701
 702         std::cout << _("Available video modes (WxHxD):") << std::endl;
 703
 704         video::IVideoModeList *videomode_list = nulldevice->getVideoModeList();
 705
 706         if (videomode_list != NULL) {
 707                 s32 videomode_count = videomode_list->getVideoModeCount();
 708                 core::dimension2d<u32> videomode_res;
 709                 s32 videomode_depth;
 710                 for (s32 i = 0; i < videomode_count; ++i) {
 711                         videomode_res = videomode_list->getVideoModeResolution(i);
 712                         videomode_depth = videomode_list->getVideoModeDepth(i);
 713                         std::cout << videomode_res.Width << "x" << videomode_res.Height
 714                                 << "x" << videomode_depth << std::endl;
 715                 }
 716
 717                 std::cout << _("Active video mode (WxHxD):") << std::endl;
 718                 videomode_res = videomode_list->getDesktopResolution();
 719                 videomode_depth = videomode_list->getDesktopDepth();
 720                 std::cout << videomode_res.Width << "x" << videomode_res.Height
 721                         << "x" << videomode_depth << std::endl;
 722
 723         }
 724
 725         nulldevice->drop();
 726         delete receiver;
 727
 728         return videomode_list != NULL;
 729 }