src/game/g_window.pas

   1 unit g_window;
   2
   3 interface
   4
   5 uses
   6   WADEDITOR;
   7
   8 function  SDLMain(): Integer;
   9 function  GetTimer(): Int64;
  10 procedure ResetTimer();
  11 function  CreateGLWindow(Title: PChar): Boolean;
  12 procedure KillGLWindow();
  13 procedure PushExitEvent();
  14 function  ProcessMessage(): Boolean;
  15 procedure ProcessLoading();
  16 procedure ReDrawWindow();
  17 procedure SwapBuffers();
  18 procedure Sleep(ms: LongWord);
  19 function  GetDisplayModes(dBPP: DWORD; var SelRes: DWORD): SArray;
  20 function  g_Window_SetDisplay(PreserveGL: Boolean = False): Boolean;
  21 function  g_Window_SetSize(W, H: Word; FScreen: Boolean): Boolean;
  22
  23 implementation
  24
  25 uses
  26   SDL, GL, GLExt, e_graphics, e_log, g_main,
  27   g_console, SysUtils, e_input, g_options, g_game,
  28   g_basic, g_textures, e_sound, g_sound, g_menu, ENet, g_net;
  29
  30 var
  31   h_Wnd: PSDL_Surface;
  32   wFlags: LongWord = 0;
  33   Time, Time_Delta, Time_Old: Int64;
  34   flag: Boolean;
  35   wNeedTimeReset: Boolean = False;
  36   wWindowCreated: Boolean = False;
  37   //wCursorShown: Boolean = False;
  38   wMinimized: Boolean = False;
  39   //wNeedFree: Boolean = True;
  40   wLoadingProgress: Boolean = False;
  41   wLoadingQuit: Boolean = False;
  42   {wWinPause: Byte = 0;}
  43
  44 const
  45   // TODO: move this to a separate file
  46   CP1251: array [0..127] of Word = (
  47     $0402,$0403,$201A,$0453,$201E,$2026,$2020,$2021,$20AC,$2030,$0409,$2039,$040A,$040C,$040B,$040F,
  48     $0452,$2018,$2019,$201C,$201D,$2022,$2013,$2014,$003F,$2122,$0459,$203A,$045A,$045C,$045B,$045F,
  49     $00A0,$040E,$045E,$0408,$00A4,$0490,$00A6,$00A7,$0401,$00A9,$0404,$00AB,$00AC,$00AD,$00AE,$0407,
  50     $00B0,$00B1,$0406,$0456,$0491,$00B5,$00B6,$00B7,$0451,$2116,$0454,$00BB,$0458,$0405,$0455,$0457,
  51     $0410,$0411,$0412,$0413,$0414,$0415,$0416,$0417,$0418,$0419,$041A,$041B,$041C,$041D,$041E,$041F,
  52     $0420,$0421,$0422,$0423,$0424,$0425,$0426,$0427,$0428,$0429,$042A,$042B,$042C,$042D,$042E,$042F,
  53     $0430,$0431,$0432,$0433,$0434,$0435,$0436,$0437,$0438,$0439,$043A,$043B,$043C,$043D,$043E,$043F,
  54     $0440,$0441,$0442,$0443,$0444,$0445,$0446,$0447,$0448,$0449,$044A,$044B,$044C,$044D,$044E,$044F
  55   );
  56
  57 // TODO: make a transition table or something
  58 function WCharToCP1251(wc: Word): Word;
  59 begin
  60   for Result := 0 to 127 do
  61     if CP1251[Result] = wc then
  62       break;
  63   Result := Result + 128;
  64 end;
  65
  66 function g_Window_SetDisplay(PreserveGL: Boolean = False): Boolean;
  67 begin
  68   Result := False;
  69
  70   e_WriteLog('Setting display mode...', MSG_NOTIFY);
  71
  72   if wWindowCreated and PreserveGL then
  73     e_SaveGLContext(); // we need this and restore because of a bug in SDL1.2, apparently
  74
  75   wFlags := SDL_RESIZABLE or SDL_OPENGL;
  76   if gFullscreen then wFlags := wFlags or SDL_FULLSCREEN;
  77
  78   h_Wnd := SDL_SetVideoMode(gScreenWidth, gScreenHeight, gBPP, wFlags);
  79   SDL_EnableUNICODE(SDL_ENABLE);
  80   SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
  81   SDL_ShowCursor(SDL_DISABLE);
  82
  83   if wWindowCreated and PreserveGL then
  84     e_RestoreGLContext();
  85
  86   Result := h_Wnd <> nil;
  87 end;
  88
  89 procedure ReShowCursor();
  90 begin
  91   // TODO: what was this for?
  92 end;
  93
  94 function GetDisplayModes(dBPP: DWORD; var SelRes: DWORD): SArray;
  95 var
  96   modesp: PPSDL_Rect;
  97   tmpp: PSDL_Rect;
  98   tmpr: SDL_Rect;
  99   i: Integer;
 100 begin
 101   SetLength(Result, 0);
 102   modesp := SDL_ListModes(nil, SDL_FULLSCREEN or SDL_HWSURFACE);
 103   if modesp = nil then exit;
 104   if Pointer(-1) = modesp then exit;
 105
 106   tmpp := modesp^;
 107   i := 0;
 108   while tmpp <> nil do
 109   begin
 110     tmpr := tmpp^;
 111     if (tmpr.w = gScreenWidth) and (tmpr.h = gScreenHeight) then
 112       SelRes := i;
 113     SetLength(Result, Length(Result) + 1);
 114     Result[i] := IntToStr(tmpr.w) + 'x' + IntToStr(tmpr.h);
 115
 116     modesp := Pointer(Cardinal(modesp) + SizeOf(PSDL_Rect));
 117     tmpp := modesp^;
 118     Inc(i);
 119   end;
 120
 121   e_WriteLog('SDL: Got ' + IntToStr(Length(Result)) + ' resolutions.', MSG_NOTIFY);
 122 end;
 123
 124 procedure Sleep(ms: LongWord);
 125 begin
 126   SDL_Delay(ms);
 127 end;
 128
 129 procedure ChangeWindowSize();
 130 begin
 131   gWinSizeX := gScreenWidth;
 132   gWinSizeY := gScreenHeight;
 133   e_ResizeWindow(gScreenWidth, gScreenHeight);
 134   g_Game_SetupScreenSize();
 135   g_Menu_Reset();
 136   g_Game_ClearLoading();
 137 end;
 138
 139 function g_Window_SetSize(W, H: Word; FScreen: Boolean): Boolean;
 140 var
 141   Preserve: Boolean;
 142 begin
 143   Result := False;
 144   Preserve := False;
 145
 146   if (gScreenWidth <> W) or (gScreenHeight <> H) then
 147   begin
 148     Result := True;
 149     gScreenWidth := W;
 150     gScreenHeight := H;
 151   end;
 152
 153   if gFullscreen <> FScreen then
 154   begin
 155     Result := True;
 156     gFullscreen := FScreen;
 157     Preserve := True;
 158   end;
 159
 160   if Result then
 161   begin
 162     g_Window_SetDisplay(Preserve);
 163     ChangeWindowSize();
 164   end;
 165 end;
 166
 167 function EventHandler(ev: TSDL_Event): Boolean;
 168 var
 169   key, keychr: Word;
 170   //joy: Integer;
 171 begin
 172   Result := False;
 173   case ev.type_ of
 174     SDL_VIDEORESIZE:
 175     begin
 176       g_Window_SetSize(ev.resize.w, ev.resize.h, gFullscreen);
 177       e_Clear();
 178     end;
 179
 180     SDL_ACTIVEEVENT:
 181     begin
 182       if (ev.active.gain = 0) then
 183       begin
 184         if g_debug_WinMsgs then
 185         begin
 186           g_Console_Add('Inactive');
 187           e_WriteLog('[DEBUG] WinMsgs: Inactive', MSG_NOTIFY);
 188         end;
 189
 190         if LongBool(ev.active.state and SDL_APPINPUTFOCUS) and gWinActive then
 191         begin
 192           e_EnableInput := False;
 193           e_ClearInputBuffer();
 194
 195           if gMuteWhenInactive then
 196             e_MuteChannels(True);
 197
 198           if g_debug_WinMsgs then
 199           begin
 200             g_Console_Add('Inactive indeed');
 201             e_WriteLog('[DEBUG] WinMsgs: Inactive indeed', MSG_NOTIFY);
 202           end;
 203
 204           gWinActive := False;
 205         end;
 206
 207         if LongBool(ev.active.state and SDL_APPACTIVE) and (not wMinimized) then
 208         begin
 209           e_ResizeWindow(0, 0);
 210           wMinimized := True;
 211
 212           if g_debug_WinMsgs then
 213           begin
 214             g_Console_Add('Minimized indeed');
 215             e_WriteLog('[DEBUG] WinMsgs: Minimized indeed', MSG_NOTIFY);
 216           end;
 217         end;
 218       end
 219       else
 220       begin
 221         if g_debug_WinMsgs then
 222         begin
 223           g_Console_Add('Active');
 224           e_WriteLog('[DEBUG] WinMsgs: Active', MSG_NOTIFY);
 225         end;
 226
 227         // Åñëè îêíî áûëî íåàêòèâíûì:
 228         if LongBool(ev.active.state and SDL_APPINPUTFOCUS) and (not gWinActive) then
 229         begin
 230           e_EnableInput := True;
 231
 232           if gMuteWhenInactive then
 233             e_MuteChannels(False);
 234
 235           if g_debug_WinMsgs then
 236           begin
 237             g_Console_Add('Active indeed');
 238             e_WriteLog('[DEBUG] WinMsgs: Active indeed', MSG_NOTIFY);
 239           end;
 240
 241           gWinActive := True;
 242         end;
 243
 244         if LongBool(ev.active.state and SDL_APPACTIVE) and wMinimized then
 245         begin
 246           e_ResizeWindow(gScreenWidth, gScreenHeight);
 247
 248           wMinimized := False;
 249
 250           if g_debug_WinMsgs then
 251           begin
 252             g_Console_Add('Restored indeed');
 253             e_WriteLog('[DEBUG] WinMsgs: Restored indeed', MSG_NOTIFY);
 254           end;
 255         end;
 256       end;
 257     end;
 258
 259     SDL_VIDEOEXPOSE:
 260     begin
 261       // TODO: the fuck is this event?
 262       // Draw();
 263     end;
 264
 265     SDL_QUITEV:
 266     begin
 267       if gExit <> EXIT_QUIT then
 268       begin
 269         if not wLoadingProgress then
 270         begin
 271           g_Game_Free();
 272           g_Game_Quit();
 273         end
 274         else
 275           wLoadingQuit := True;
 276       end;
 277       Result := True;
 278     end;
 279
 280     SDL_KEYDOWN:
 281     begin
 282       key := ev.key.keysym.sym;
 283       keychr := ev.key.keysym.unicode;
 284       KeyPress(key);
 285       if (keychr > 7) and (key <> IK_BACKSPACE) then
 286       begin
 287         if (keychr >= 128) then
 288           keychr := WCharToCP1251(keychr);
 289         CharPress(Chr(keychr));
 290       end;
 291     end;
 292
 293     // key presses and joysticks are handled in e_input
 294   end;
 295 end;
 296
 297 procedure SwapBuffers();
 298 begin
 299   SDL_GL_SwapBuffers();
 300 end;
 301
 302 procedure KillGLWindow();
 303 begin
 304   wWindowCreated := False;
 305 end;
 306
 307 function CreateGLWindow(Title: PChar): Boolean;
 308 //var
 309 //  flags: LongWord;
 310 begin
 311   Result := False;
 312
 313   gWinSizeX := gScreenWidth;
 314   gWinSizeY := gScreenHeight;
 315
 316   e_WriteLog('Creating window', MSG_NOTIFY);
 317
 318   if not g_Window_SetDisplay() then
 319   begin
 320     KillGLWindow();
 321     e_WriteLog('Window creation error (resolution not supported?)', MSG_FATALERROR);
 322     exit;
 323   end;
 324
 325   SDL_WM_SetCaption(Title, Title);
 326   wWindowCreated := True;
 327
 328   e_ResizeWindow(gScreenWidth, gScreenHeight);
 329   e_InitGL();
 330
 331   Result := True;
 332 end;
 333
 334 function GetTimer(): Int64;
 335 begin
 336   Result := SDL_GetTicks() * 1000; // TODO: do we really need microseconds here?
 337 end;
 338
 339 procedure ResetTimer();
 340 begin
 341   wNeedTimeReset := True;
 342 end;
 343
 344 procedure PushExitEvent();
 345 var
 346   ev: TSDL_Event;
 347 begin
 348   ev.type_ := SDL_QUITEV;
 349   SDL_PushEvent(@ev);
 350 end;
 351
 352 procedure ProcessLoading();
 353 var
 354   ev: TSDL_Event;
 355   ID: DWORD;
 356 begin
 357   //wNeedFree := False;
 358   wLoadingProgress := True;
 359   while SDL_PollEvent(@ev) > 0 do
 360   begin
 361     if (ev.type_ = SDL_QUITEV) then
 362       break;
 363   end;
 364   //wNeedFree := True;
 365
 366   if (ev.type_ = SDL_QUITEV) or (gExit = EXIT_QUIT) then
 367   begin
 368     wLoadingProgress := False;
 369     exit;
 370   end;
 371
 372   if not wMinimized then
 373   begin
 374     if g_Texture_Get('INTER', ID) then
 375       e_DrawSize(ID, 0, 0, 0, False, False, gScreenWidth, gScreenHeight)
 376     else
 377       e_Clear(GL_COLOR_BUFFER_BIT, 0, 0, 0);
 378
 379     DrawLoadingStat();
 380     SwapBuffers();
 381
 382     ReShowCursor();
 383   end;
 384
 385   e_SoundUpdate();
 386
 387   if NetMode = NET_SERVER then
 388     g_Net_Host_Update
 389   else
 390     if (NetMode = NET_CLIENT) and (NetState <> NET_STATE_AUTH) then
 391       g_Net_Client_UpdateWhileLoading;
 392   wLoadingProgress := False;
 393 end;
 394
 395 function ProcessMessage(): Boolean;
 396 var
 397   i, t: Integer;
 398   ev: TSDL_Event;
 399 begin
 400   Result := False;
 401
 402   while SDL_PollEvent(@ev) > 0 do
 403   begin
 404     Result := EventHandler(ev);
 405     if ev.type_ = SDL_QUITEV then exit;
 406   end;
 407
 408   Time := GetTimer();
 409   Time_Delta := Time - Time_Old;
 410
 411   flag := False;
 412
 413   if wNeedTimeReset then
 414   begin
 415     Time_Delta := 27777;
 416     wNeedTimeReset := False;
 417   end;
 418
 419   t := Time_Delta div 27777;
 420   if t > 0 then
 421   begin
 422     flag := True;
 423     for i := 1 to t do
 424     begin
 425       if NetMode = NET_SERVER then g_Net_Host_Update()
 426       else if NetMode = NET_CLIENT then g_Net_Client_Update();
 427       Update();
 428     end;
 429   end
 430   else
 431   begin
 432     if NetMode = NET_SERVER then g_Net_Host_Update()
 433     else if NetMode = NET_CLIENT then g_Net_Client_Update();
 434   end;
 435
 436   if wLoadingQuit then
 437   begin
 438     g_Game_Free();
 439     g_Game_Quit();
 440   end;
 441
 442   if gExit = EXIT_QUIT then
 443   begin
 444     Result := True;
 445     Exit;
 446   end;
 447
 448 // Âðåìÿ ïðåäûäóùåãî îáíîâëåíèÿ:
 449   if flag then
 450   begin
 451     Time_Old := Time - (Time_Delta mod 27777);
 452     if (not wMinimized) then
 453     begin
 454       Draw();
 455       SwapBuffers();
 456       ReShowCursor();
 457     end;
 458   end
 459   else
 460     Sleep(1);
 461
 462   e_SoundUpdate();
 463 end;
 464
 465 procedure ReDrawWindow;
 466 begin
 467   SwapBuffers();
 468   ReShowCursor();
 469 end;
 470
 471 procedure InitOpenGL(VSync: Boolean);
 472 var
 473   v: Byte;
 474 begin
 475   if VSync then v := 1 else v := 0;
 476   SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
 477   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
 478   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
 479   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
 480   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 481   SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, v);
 482 end;
 483
 484 function SDLMain(): Integer;
 485 begin
 486   e_WriteLog('Creating GL window', MSG_NOTIFY);
 487   if not CreateGLWindow(PChar(Format('Doom 2D: Forever %s', [GAME_VERSION]))) then
 488   begin
 489     Result := 0;
 490     exit;
 491   end;
 492
 493   e_WriteLog('Initializing OpenGL', MSG_NOTIFY);
 494   InitOpenGL(gVSync);
 495
 496   {EnumDisplayModes();}
 497
 498   Init();
 499   Time_Old := GetTimer();
 500
 501 // Êîìàíäíàÿ ñòðîêà:
 502   if ParamCount > 0 then
 503     g_Game_Process_Params();
 504
 505 // Çàïðîñ ÿçûêà:
 506   if (not gGameOn) and gAskLanguage then
 507     g_Menu_AskLanguage();
 508
 509   e_WriteLog('Entering the main loop', MSG_NOTIFY);
 510
 511   while not ProcessMessage() do
 512     { Main Loop } ;
 513
 514   Release();
 515   KillGLWindow();
 516
 517   Result := 0;
 518 end;
 519
 520 end.