src/game/g_window.pas

   1 (* Copyright (C)  Doom 2D: Forever Developers
   2  *
   3  * This program is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *)
  16 {$INCLUDE ../shared/a_modes.inc}
  17 unit g_window;
  18
  19 interface
  20
  21 uses
  22   utils;
  23
  24 function SDLMain (): Integer;
  25 function GetTimer (): Int64;
  26 procedure ResetTimer ();
  27 function CreateGLWindow (Title: PChar): Boolean;
  28 procedure KillGLWindow ();
  29 procedure PushExitEvent ();
  30 function ProcessMessage (): Boolean;
  31 procedure ReDrawWindow ();
  32 procedure SwapBuffers ();
  33 procedure Sleep (ms: LongWord);
  34 function GetDisplayModes (dbpp: LongWord; var selres: LongWord): SSArray;
  35 function g_Window_SetDisplay (preserveGL: Boolean=false): Boolean;
  36 function g_Window_SetSize (w, h: Word; fullscreen: Boolean): Boolean;
  37
  38 procedure ProcessLoading (forceUpdate: Boolean=false);
  39
  40 // returns `true` if quit event was received
  41 function g_ProcessMessages (): Boolean;
  42
  43
  44 var
  45   gwin_dump_extensions: Boolean = false;
  46   gwin_has_stencil: Boolean = false;
  47   gwin_k8_enable_light_experiments: Boolean = false;
  48   g_dbg_aimline_on: Boolean = false;
  49
  50
  51 implementation
  52
  53 uses
  54 {$IFDEF WINDOWS}Windows,{$ENDIF}
  55   SysUtils, Classes, MAPDEF,
  56   SDL2, GL, GLExt, e_graphics, e_log, e_texture, g_main,
  57   g_console, e_input, g_options, g_game,
  58   g_basic, g_textures, e_sound, g_sound, g_menu, ENet, g_net,
  59   g_map, g_gfx, g_monsters, g_holmes, xprofiler,
  60   sdlcarcass, fui_ctls;
  61
  62
  63 const
  64   ProgressUpdateMSecs = 100;
  65
  66 var
  67   h_Wnd: PSDL_Window = nil;
  68   h_GL: TSDL_GLContext = nil;
  69   Time, Time_Delta, Time_Old: Int64;
  70   flag: Boolean;
  71 {$IF not DEFINED(HEADLESS)}
  72   wTitle: PChar = nil;
  73 {$ENDIF}
  74   wNeedTimeReset: Boolean = false;
  75   wMinimized: Boolean = false;
  76   wLoadingProgress: Boolean = false;
  77   wLoadingQuit: Boolean = false;
  78 {$IFNDEF WINDOWS}
  79   ticksOverflow: Int64 = -1;
  80   lastTicks: Uint32 = 0; // to detect overflow
  81 {$ENDIF}
  82
  83
  84 procedure KillGLWindow ();
  85 begin
  86   if (h_GL <> nil) then begin if (assigned(oglDeinitCB)) then oglDeinitCB(); end;
  87   if (h_Wnd <> nil) then SDL_DestroyWindow(h_Wnd);
  88   if (h_GL <> nil) then SDL_GL_DeleteContext(h_GL);
  89   h_Wnd := nil;
  90   h_GL := nil;
  91 end;
  92
  93
  94 function g_Window_SetDisplay (preserveGL: Boolean = false): Boolean;
  95 {$IF not DEFINED(HEADLESS)}
  96 var
  97   mode, cmode: TSDL_DisplayMode;
  98   wFlags: LongWord = 0;
  99 {$ENDIF}
 100 begin
 101 {$IF not DEFINED(HEADLESS)}
 102   result := false;
 103
 104   e_WriteLog('Setting display mode...', TMsgType.Notify);
 105
 106   wFlags := SDL_WINDOW_OPENGL or SDL_WINDOW_RESIZABLE;
 107   if gFullscreen then wFlags := wFlags or SDL_WINDOW_FULLSCREEN;
 108   if gWinMaximized then wFlags := wFlags or SDL_WINDOW_MAXIMIZED;
 109
 110   KillGLWindow();
 111
 112   if gFullscreen then
 113   begin
 114     mode.w := gScreenWidth;
 115     mode.h := gScreenHeight;
 116     mode.format := 0;
 117     mode.refresh_rate := 0;
 118     mode.driverdata := nil;
 119     if (SDL_GetClosestDisplayMode(0, @mode, @cmode) = nil) then
 120     begin
 121       gScreenWidth := 800;
 122       gScreenHeight := 600;
 123     end
 124     else
 125     begin
 126       gScreenWidth := cmode.w;
 127       gScreenHeight := cmode.h;
 128     end;
 129   end;
 130
 131   h_Wnd := SDL_CreateWindow(PChar(wTitle), gWinRealPosX, gWinRealPosY, gScreenWidth, gScreenHeight, wFlags);
 132   if (h_Wnd = nil) then exit;
 133
 134   SDL_GL_MakeCurrent(h_Wnd, h_GL);
 135   SDL_ShowCursor(SDL_DISABLE);
 136   fuiScrWdt := gScreenWidth;
 137   fuiScrHgt := gScreenHeight;
 138   if (h_GL <> nil) then begin if (assigned(oglInitCB)) then oglInitCB(); end;
 139 {$ENDIF}
 140
 141   result := true;
 142 end;
 143
 144
 145 function GetDisplayModes (dbpp: LongWord; var selres: LongWord): SSArray;
 146 var
 147   mode: TSDL_DisplayMode;
 148   res, i, k, n, pw, ph: Integer;
 149 begin
 150   SetLength(result, 0);
 151   {$IFDEF HEADLESS}exit;{$ENDIF}
 152   k := 0; selres := 0;
 153   n := SDL_GetNumDisplayModes(0);
 154   pw := 0; ph := 0;
 155   for i := 0 to n do
 156   begin
 157     res := SDL_GetDisplayMode(0, i, @mode);
 158     if res < 0 then continue;
 159     if SDL_BITSPERPIXEL(mode.format) = gBPP then continue;
 160     if (mode.w = pw) and (mode.h = ph) then continue;
 161     if (mode.w = gScreenWidth) and (mode.h = gScreenHeight) then
 162       selres := k;
 163     Inc(k);
 164     SetLength(result, k);
 165     result[k-1] := IntToStr(mode.w) + 'x' + IntToStr(mode.h);
 166     pw := mode.w; ph := mode.h
 167   end;
 168
 169   e_WriteLog('SDL: Got ' + IntToStr(k) + ' resolutions.', TMsgType.Notify);
 170 end;
 171
 172
 173 procedure Sleep (ms: LongWord);
 174 begin
 175   SDL_Delay(ms);
 176 end;
 177
 178
 179 procedure ChangeWindowSize ();
 180 begin
 181   gWinSizeX := gScreenWidth;
 182   gWinSizeY := gScreenHeight;
 183 {$IF not DEFINED(HEADLESS)}
 184   fuiScrWdt := gScreenWidth;
 185   fuiScrHgt := gScreenHeight;
 186   e_ResizeWindow(gScreenWidth, gScreenHeight);
 187   g_Game_SetupScreenSize();
 188   g_Menu_Reset();
 189   g_Game_ClearLoading();
 190 {$ENDIF}
 191 end;
 192
 193
 194 function g_Window_SetSize (w, h: Word; fullscreen: Boolean): Boolean;
 195 {$IF not DEFINED(HEADLESS)}
 196 var
 197   preserve: Boolean;
 198 {$ENDIF}
 199 begin
 200   result := false;
 201 {$IF not DEFINED(HEADLESS)}
 202   preserve := false;
 203
 204   if (gScreenWidth <> w) or (gScreenHeight <> h) then
 205   begin
 206     result := true;
 207     gScreenWidth := w;
 208     gScreenHeight := h;
 209   end;
 210
 211   if (gFullscreen <> fullscreen) then
 212   begin
 213     result := true;
 214     gFullscreen := fullscreen;
 215     preserve := true;
 216   end;
 217
 218   if result then
 219   begin
 220     g_Window_SetDisplay(preserve);
 221     ChangeWindowSize();
 222   end;
 223 {$ENDIF}
 224 end;
 225
 226
 227 function WindowEventHandler (constref ev: TSDL_WindowEvent): Boolean;
 228 var
 229   wActivate, wDeactivate: Boolean;
 230 begin
 231   result := false;
 232   wActivate := false;
 233   wDeactivate := false;
 234
 235   case ev.event of
 236     SDL_WINDOWEVENT_MOVED:
 237     begin
 238       if not (gFullscreen or gWinMaximized) then
 239       begin
 240         gWinRealPosX := ev.data1;
 241         gWinRealPosY := ev.data2;
 242       end;
 243     end;
 244
 245     SDL_WINDOWEVENT_MINIMIZED:
 246     begin
 247       e_UnpressAllKeys();
 248       if not wMinimized then
 249       begin
 250         e_ResizeWindow(0, 0);
 251         wMinimized := true;
 252         if g_debug_WinMsgs then
 253         begin
 254           g_Console_Add('Now minimized');
 255           e_WriteLog('[DEBUG] WinMsgs: Now minimized', TMsgType.Notify);
 256         end;
 257         wDeactivate := true;
 258       end;
 259     end;
 260
 261     SDL_WINDOWEVENT_RESIZED:
 262     begin
 263       gScreenWidth := ev.data1;
 264       gScreenHeight := ev.data2;
 265       ChangeWindowSize();
 266       SwapBuffers();
 267       if g_debug_WinMsgs then
 268       begin
 269         g_Console_Add('Resized to ' + IntToStr(ev.data1) + 'x' + IntToStr(ev.data2));
 270         e_WriteLog('[DEBUG] WinMsgs: Resized to ' + IntToStr(ev.data1) + 'x' + IntToStr(ev.data2), TMsgType.Notify);
 271       end;
 272     end;
 273
 274     SDL_WINDOWEVENT_EXPOSED:
 275       SwapBuffers();
 276
 277     SDL_WINDOWEVENT_MAXIMIZED:
 278     begin
 279       if wMinimized then
 280       begin
 281         e_ResizeWindow(gScreenWidth, gScreenHeight);
 282         wMinimized := false;
 283         wActivate := true;
 284       end;
 285       if not gWinMaximized then
 286       begin
 287         gWinMaximized := true;
 288         if g_debug_WinMsgs then
 289         begin
 290           g_Console_Add('Now maximized');
 291           e_WriteLog('[DEBUG] WinMsgs: Now maximized', TMsgType.Notify);
 292         end;
 293       end;
 294     end;
 295
 296     SDL_WINDOWEVENT_RESTORED:
 297     begin
 298       if wMinimized then
 299       begin
 300         e_ResizeWindow(gScreenWidth, gScreenHeight);
 301         wMinimized := false;
 302         wActivate := true;
 303       end;
 304       if gWinMaximized then gWinMaximized := false;
 305       if g_debug_WinMsgs then
 306       begin
 307         g_Console_Add('Now restored');
 308         e_WriteLog('[DEBUG] WinMsgs: Now restored', TMsgType.Notify);
 309       end;
 310     end;
 311
 312     SDL_WINDOWEVENT_FOCUS_GAINED:
 313     begin
 314       wActivate := true;
 315       //e_WriteLog('window gained focus!', MSG_NOTIFY);
 316     end;
 317
 318     SDL_WINDOWEVENT_FOCUS_LOST:
 319     begin
 320       wDeactivate := true;
 321       e_UnpressAllKeys();
 322       //e_WriteLog('window lost focus!', MSG_NOTIFY);
 323     end;
 324   end;
 325
 326   if wDeactivate then
 327   begin
 328     if gWinActive then
 329     begin
 330       e_WriteLog('deactivating window', TMsgType.Notify);
 331       e_EnableInput := false;
 332       e_ClearInputBuffer();
 333
 334       if gMuteWhenInactive then
 335       begin
 336         //e_WriteLog('deactivating sounds', MSG_NOTIFY);
 337         e_MuteChannels(true);
 338       end;
 339
 340       if g_debug_WinMsgs then
 341       begin
 342         g_Console_Add('Now inactive');
 343         e_WriteLog('[DEBUG] WinMsgs: Now inactive', TMsgType.Notify);
 344       end;
 345
 346       gWinActive := false;
 347
 348       if assigned(winBlurCB) then winBlurCB();
 349     end;
 350   end
 351   else if wActivate then
 352   begin
 353     if not gWinActive then
 354     begin
 355       //e_WriteLog('activating window', MSG_NOTIFY);
 356       e_EnableInput := true;
 357
 358       if gMuteWhenInactive then
 359       begin
 360         //e_WriteLog('activating sounds', MSG_NOTIFY);
 361         e_MuteChannels(false);
 362       end;
 363
 364       if g_debug_WinMsgs then
 365       begin
 366         g_Console_Add('Now active');
 367         e_WriteLog('[DEBUG] WinMsgs: Now active', TMsgType.Notify);
 368       end;
 369
 370       gWinActive := true;
 371       if assigned(winFocusCB) then winFocusCB();
 372     end;
 373   end;
 374 end;
 375
 376
 377 function EventHandler (var ev: TSDL_Event): Boolean;
 378 var
 379   key, keychr: Word;
 380   uc: UnicodeChar;
 381   down: Boolean;
 382 begin
 383   result := false;
 384
 385   case ev.type_ of
 386     SDL_WINDOWEVENT:
 387       result := WindowEventHandler(ev.window);
 388
 389     SDL_QUITEV:
 390       begin
 391         if (gExit <> EXIT_QUIT) then
 392         begin
 393           if not wLoadingProgress then
 394           begin
 395             g_Game_Free();
 396             g_Game_Quit();
 397           end
 398           else
 399           begin
 400             wLoadingQuit := true;
 401           end;
 402         end;
 403         result := true;
 404       end;
 405
 406     SDL_KEYDOWN, SDL_KEYUP:
 407       begin
 408         key := ev.key.keysym.scancode;
 409         down := (ev.type_ = SDL_KEYDOWN);
 410         {$IF not DEFINED(HEADLESS)}
 411         if fuiOnSDLEvent(ev) then
 412         begin
 413           // event eaten, but...
 414           if not down then e_KeyUpDown(key, false);
 415           exit;
 416         end;
 417         {$ENDIF}
 418         if down then KeyPress(key);
 419         e_KeyUpDown(key, down);
 420       end;
 421
 422     {$IF not DEFINED(HEADLESS)}
 423     SDL_MOUSEBUTTONDOWN, SDL_MOUSEBUTTONUP, SDL_MOUSEWHEEL, SDL_MOUSEMOTION:
 424       fuiOnSDLEvent(ev);
 425     {$ENDIF}
 426
 427     SDL_TEXTINPUT:
 428       begin
 429         Utf8ToUnicode(@uc, PChar(ev.text.text), 1);
 430         keychr := Word(uc);
 431         if (keychr > 127) then keychr := Word(wchar2win(WideChar(keychr)));
 432         if (keychr > 0) and (keychr <= 255) then CharPress(AnsiChar(keychr));
 433       end;
 434
 435     // other key presses and joysticks are handled in e_input
 436   end;
 437 end;
 438
 439
 440 procedure SwapBuffers ();
 441 begin
 442   {$IF not DEFINED(HEADLESS)}
 443   SDL_GL_SwapWindow(h_Wnd);
 444   {$ENDIF}
 445 end;
 446
 447
 448 function CreateGLWindow (Title: PChar): Boolean;
 449 begin
 450   result := false;
 451
 452   gWinSizeX := gScreenWidth;
 453   gWinSizeY := gScreenHeight;
 454
 455 {$IF not DEFINED(HEADLESS)}
 456   wTitle := Title;
 457 {$ENDIF}
 458   e_WriteLog('Creating window', TMsgType.Notify);
 459
 460   if not g_Window_SetDisplay() then
 461   begin
 462     KillGLWindow();
 463     e_WriteLog('Window creation error (resolution not supported?)', TMsgType.Fatal);
 464     exit;
 465   end;
 466
 467 {$IF not DEFINED(HEADLESS)}
 468   h_Gl := SDL_GL_CreateContext(h_Wnd);
 469   if (h_Gl = nil) then exit;
 470   fuiScrWdt := gScreenWidth;
 471   fuiScrHgt := gScreenHeight;
 472   if (assigned(oglInitCB)) then oglInitCB();
 473 {$ENDIF}
 474
 475   e_ResizeWindow(gScreenWidth, gScreenHeight);
 476   e_InitGL();
 477
 478   result := true;
 479 end;
 480
 481
 482 {$IFDEF WINDOWS}
 483 // windoze sux; in headless mode `GetTickCount()` (and SDL) returns shit
 484 function GetTimer (): Int64;
 485 var
 486   F, C: Int64;
 487 begin
 488   QueryPerformanceFrequency(F);
 489   QueryPerformanceCounter(C);
 490   result := Round(C/F*1000{000});
 491 end;
 492 {$ELSE}
 493 function GetTimer (): Int64;
 494 var
 495   t: Uint32;
 496   tt: Int64;
 497 begin
 498   t := SDL_GetTicks();
 499   if (ticksOverflow = -1) then
 500   begin
 501     ticksOverflow := 0;
 502     lastTicks := t;
 503   end
 504   else
 505   begin
 506     if (lastTicks > t) then
 507     begin
 508       // overflow, increment overflow ;-)
 509       ticksOverflow := ticksOverflow+(Int64($ffffffff)+Int64(1));
 510       tt := (Int64($ffffffff)+Int64(1))+Int64(t);
 511       t := Uint32(tt-lastTicks);
 512     end;
 513   end;
 514   lastTicks := t;
 515   result := ticksOverflow+Int64(t);
 516 end;
 517 {$ENDIF}
 518
 519
 520 procedure ResetTimer ();
 521 begin
 522   wNeedTimeReset := true;
 523 end;
 524
 525
 526 procedure PushExitEvent ();
 527 var
 528   ev: TSDL_Event;
 529 begin
 530   ev.type_ := SDL_QUITEV;
 531   SDL_PushEvent(@ev);
 532 end;
 533
 534
 535 var
 536   prevLoadingUpdateTime: UInt64 = 0;
 537
 538 procedure ProcessLoading (forceUpdate: Boolean=false);
 539 var
 540   ev: TSDL_Event;
 541   ID: LongWord;
 542   stt: UInt64;
 543 begin
 544   FillChar(ev, sizeof(ev), 0);
 545   wLoadingProgress := true;
 546
 547   while (SDL_PollEvent(@ev) > 0) do
 548   begin
 549     EventHandler(ev);
 550     if (ev.type_ = SDL_QUITEV) then break;
 551   end;
 552   e_PollJoysticks();
 553
 554   if (ev.type_ = SDL_QUITEV) or (gExit = EXIT_QUIT) then
 555   begin
 556     wLoadingProgress := false;
 557     exit;
 558   end;
 559
 560   if not wMinimized then
 561   begin
 562     if forceUpdate then
 563     begin
 564       prevLoadingUpdateTime := getTimeMilli();
 565     end
 566     else
 567     begin
 568       stt := getTimeMilli();
 569       if (stt < prevLoadingUpdateTime) or (stt-prevLoadingUpdateTime >= ProgressUpdateMSecs) then
 570       begin
 571         prevLoadingUpdateTime := stt;
 572         forceUpdate := true;
 573       end;
 574     end;
 575
 576     if forceUpdate then
 577     begin
 578       if g_Texture_Get('INTER', ID) then
 579       begin
 580         e_DrawSize(ID, 0, 0, 0, false, false, gScreenWidth, gScreenHeight)
 581       end
 582       else
 583       begin
 584         e_Clear(GL_COLOR_BUFFER_BIT, 0, 0, 0);
 585       end;
 586
 587       DrawLoadingStat();
 588       SwapBuffers();
 589     end;
 590   end;
 591
 592   e_SoundUpdate();
 593
 594   if NetMode = NET_SERVER then
 595   begin
 596     g_Net_Host_Update();
 597   end
 598   else
 599   begin
 600     if (NetMode = NET_CLIENT) and (NetState <> NET_STATE_AUTH) then g_Net_Client_UpdateWhileLoading();
 601   end;
 602
 603   wLoadingProgress := false;
 604 end;
 605
 606
 607 function g_ProcessMessages (): Boolean;
 608 var
 609   ev: TSDL_Event;
 610 begin
 611   result := false;
 612   FillChar(ev, SizeOf(ev), 0);
 613   while (SDL_PollEvent(@ev) > 0) do
 614   begin
 615     result := EventHandler(ev);
 616     if (ev.type_ = SDL_QUITEV) then exit;
 617   end;
 618   e_PollJoysticks();
 619 end;
 620
 621
 622 function ProcessMessage (): Boolean;
 623 var
 624   i, t: Integer;
 625 begin
 626   result := g_ProcessMessages();
 627
 628   Time := GetTimer();
 629   Time_Delta := Time-Time_Old;
 630
 631   flag := false;
 632
 633   if wNeedTimeReset then
 634   begin
 635     Time_Delta := 28;
 636     wNeedTimeReset := false;
 637   end;
 638
 639   g_Map_ProfilersBegin();
 640   g_Mons_ProfilersBegin();
 641
 642   t := Time_Delta div 28;
 643   if (t > 0) then
 644   begin
 645     flag := true;
 646     for i := 1 to t do
 647     begin
 648            if (NetMode = NET_SERVER) then g_Net_Host_Update()
 649       else if (NetMode = NET_CLIENT) then g_Net_Client_Update();
 650       Update();
 651     end;
 652   end
 653   else
 654   begin
 655          if (NetMode = NET_SERVER) then g_Net_Host_Update()
 656     else if (NetMode = NET_CLIENT) then g_Net_Client_Update();
 657   end;
 658
 659   g_Map_ProfilersEnd();
 660   g_Mons_ProfilersEnd();
 661
 662   if wLoadingQuit then
 663   begin
 664     g_Game_Free();
 665     g_Game_Quit();
 666   end;
 667
 668   if (gExit = EXIT_QUIT) then
 669   begin
 670     result := true;
 671     exit;
 672   end;
 673
 674   // Âðåìÿ ïðåäûäóùåãî îáíîâëåíèÿ
 675   if flag then
 676   begin
 677     Time_Old := Time-(Time_Delta mod 28);
 678     if (not wMinimized) then
 679     begin
 680       Draw();
 681       SwapBuffers();
 682     end;
 683   end
 684   else
 685   begin
 686     Sleep(1); // release time slice, so we won't eat 100% CPU
 687   end;
 688
 689   e_SoundUpdate();
 690 end;
 691
 692
 693 procedure ReDrawWindow ();
 694 begin
 695   SwapBuffers();
 696 end;
 697
 698
 699 procedure InitOpenGL (vsync: Boolean);
 700 {$IF not DEFINED(HEADLESS)}
 701 var
 702   v: Byte;
 703 {$ENDIF}
 704 begin
 705 {$IF not DEFINED(HEADLESS)}
 706   if vsync then v := 1 else v := 0;
 707   SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
 708   SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
 709   SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
 710   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
 711   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
 712   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
 713   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 714   SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); // lights; it is enough to have 1-bit stencil buffer for lighting, but...
 715   SDL_GL_SetSwapInterval(v);
 716 {$ENDIF}
 717 end;
 718
 719
 720 function glHasExtension (const name: AnsiString): Boolean;
 721 var
 722   exts: PChar;
 723   i: Integer;
 724   found: Boolean;
 725   extName: ShortString;
 726 begin
 727   result := false;
 728   if (Length(name) = 0) then exit;
 729   exts := glGetString(GL_EXTENSIONS);
 730   if (exts = nil) then exit;
 731   while (exts[0] <> #0) and (exts[0] = ' ') do Inc(exts);
 732   while (exts[0] <> #0) do
 733   begin
 734     if gwin_dump_extensions then
 735     begin
 736       i := 0;
 737       while (exts[i] <> #0) and (exts[i] <> ' ') do Inc(i);
 738       if i > 255 then
 739       begin
 740         e_WriteLog('FUUUUUUUUUUUUU', TMsgType.Warning);
 741       end
 742       else
 743       begin
 744         Move(exts^, extName[1], i);
 745         extName[0] := Char(i);
 746         e_WriteLog(Format('EXT: %s', [extName]), TMsgType.Notify);
 747       end;
 748     end;
 749     found := true;
 750     for i := 0 to length(name)-1 do
 751     begin
 752       if (exts[i] = #0) then begin found := false; break; end;
 753       if (exts[i] <> name[i+1]) then begin found := false; break; end;
 754     end;
 755     if found and ((exts[Length(name)] = #0) or (exts[Length(name)] = ' ')) then begin result := true; exit; end;
 756     while (exts[0] <> #0) and (exts[0] <> ' ') do Inc(exts);
 757     while (exts[0] <> #0) and (exts[0] = ' ') do Inc(exts);
 758   end;
 759 end;
 760
 761
 762 function SDLMain (): Integer;
 763 var
 764   idx: Integer;
 765   {$IF not DEFINED(HEADLESS)}
 766   ltmp: Integer;
 767   {$ENDIF}
 768   arg: AnsiString;
 769   mdfo: TStream;
 770   itmp: Integer;
 771   valres: Word;
 772 begin
 773 {$IFDEF HEADLESS}
 774   e_NoGraphics := true;
 775 {$ELSE}
 776   if (not g_holmes_imfunctional) then
 777   begin
 778     uiInitialize();
 779     uiContext.font := 'win14';
 780   end;
 781 {$ENDIF}
 782
 783   idx := 1;
 784   while (idx <= ParamCount) do
 785   begin
 786     arg := ParamStr(idx);
 787     Inc(idx);
 788     if arg = '--opengl-dump-exts' then gwin_dump_extensions := true;
 789     //if arg = '--twinkletwinkle' then gwin_k8_enable_light_experiments := true;
 790     if arg = '--jah' then g_profile_history_size := 100;
 791     if arg = '--no-particles' then gpart_dbg_enabled := false;
 792     if arg = '--no-los' then gmon_dbg_los_enabled := false;
 793
 794     if arg = '--profile-render' then g_profile_frame_draw := true;
 795     if arg = '--profile-coldet' then g_profile_collision := true;
 796     if arg = '--profile-los' then g_profile_los := true;
 797
 798     if arg = '--no-part-phys' then gpart_dbg_phys_enabled := false;
 799     if arg = '--no-part-physics' then gpart_dbg_phys_enabled := false;
 800     if arg = '--no-particles-phys' then gpart_dbg_phys_enabled := false;
 801     if arg = '--no-particles-physics' then gpart_dbg_phys_enabled := false;
 802     if arg = '--no-particle-phys' then gpart_dbg_phys_enabled := false;
 803     if arg = '--no-particle-physics' then gpart_dbg_phys_enabled := false;
 804
 805     {.$IF DEFINED(D2F_DEBUG)}
 806     if arg = '--aimline' then g_dbg_aimline_on := true;
 807     {.$ENDIF}
 808
 809     if arg = '--holmes' then begin g_holmes_enabled := true; g_Game_SetDebugMode(); end;
 810
 811     if (arg = '--holmes-ui-scale') or (arg = '-holmes-ui-scale') then
 812     begin
 813       if (idx <= ParamCount) then
 814       begin
 815         if not conParseFloat(fuiRenderScale, ParamStr(idx)) then fuiRenderScale := 1.0;
 816         Inc(idx);
 817       end;
 818     end;
 819
 820     if (arg = '--holmes-font') or (arg = '-holmes-font') then
 821     begin
 822       if (idx <= ParamCount) then
 823       begin
 824         itmp := 0;
 825         val(ParamStr(idx), itmp, valres);
 826         {$IFNDEF HEADLESS}
 827         if (valres = 0) and (not g_holmes_imfunctional) then
 828         begin
 829           case itmp of
 830             8: uiContext.font := 'win8';
 831             14: uiContext.font := 'win14';
 832             16: uiContext.font := 'win16';
 833           end;
 834         end;
 835         {$ELSE}
 836         // fuck off, fpc!
 837         itmp := itmp;
 838         valres := valres;
 839         {$ENDIF}
 840         Inc(idx);
 841       end;
 842     end;
 843
 844     if (arg = '--game-scale') or (arg = '-game-scale') then
 845     begin
 846       if (idx <= ParamCount) then
 847       begin
 848         if not conParseFloat(g_dbg_scale, ParamStr(idx)) then g_dbg_scale := 1.0;
 849         Inc(idx);
 850       end;
 851     end;
 852
 853     if (arg = '--write-mapdef') or (arg = '-write-mapdef') then
 854     begin
 855       mdfo := createDiskFile('mapdef.txt');
 856       mdfo.WriteBuffer(defaultMapDef[1], Length(defaultMapDef));
 857       mdfo.Free();
 858       Halt(0);
 859     end;
 860   end;
 861
 862   e_WriteLog('Initializing OpenGL', TMsgType.Notify);
 863   InitOpenGL(gVSync);
 864
 865   e_WriteLog('Creating GL window', TMsgType.Notify);
 866   if not CreateGLWindow(PChar(Format('Doom 2D: Forever %s', [GAME_VERSION]))) then
 867   begin
 868     result := 0;
 869     exit;
 870   end;
 871
 872   {EnumDisplayModes();}
 873
 874 {$IFDEF HEADLESS}
 875   //gwin_k8_enable_light_experiments := false;
 876   gwin_has_stencil := false;
 877   glLegacyNPOT := false;
 878   gwin_dump_extensions := false;
 879 {$ELSE}
 880   SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE, @ltmp);
 881   e_LogWritefln('stencil buffer size: %s', [ltmp]);
 882   gwin_has_stencil := (ltmp > 0);
 883
 884   if not glHasExtension('GL_ARB_texture_non_power_of_two') then
 885   begin
 886     e_WriteLog('NPOT textures: NO', TMsgType.Warning);
 887     glLegacyNPOT := true;
 888   end
 889   else
 890   begin
 891     e_WriteLog('NPOT textures: YES', TMsgType.Notify);
 892     glLegacyNPOT := false;
 893   end;
 894   gwin_dump_extensions := false;
 895 {$ENDIF}
 896
 897   Init();
 898   Time_Old := GetTimer();
 899
 900   // Êîìàíäíàÿ ñòðîêà
 901   if (ParamCount > 0) then g_Game_Process_Params();
 902
 903   // Çàïðîñ ÿçûêà
 904   if (not gGameOn) and gAskLanguage then g_Menu_AskLanguage();
 905
 906   e_WriteLog('Entering the main loop', TMsgType.Notify);
 907
 908   // main loop
 909   while not ProcessMessage() do begin end;
 910
 911   Release();
 912   KillGLWindow();
 913
 914   result := 0;
 915 end;
 916
 917
 918 end.