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 {$INCLUDE ../shared/a_modes.inc}
  17 unit g_window;
  18
  19 interface
  20
  21 uses
  22   utils;
  23
  24 function SDLMain (): Integer;
  25 function GetTimer (): Int64;
  26 procedure ResetTimer ();
  27 procedure PushExitEvent ();
  28 function ProcessMessage (): Boolean;
  29 procedure ReDrawWindow ();
  30 procedure SwapBuffers ();
  31 procedure Sleep (ms: LongWord);
  32 function GetDisplayModes (dbpp: LongWord; var selres: LongWord): SSArray;
  33 function g_Window_SetDisplay (preserveGL: Boolean=false): Boolean;
  34 function g_Window_SetSize (w, h: Word; fullscreen: Boolean): Boolean;
  35 procedure g_SetVSync (vsync: Boolean);
  36
  37 procedure ProcessLoading (forceUpdate: Boolean=false);
  38
  39 // returns `true` if quit event was received
  40 function g_ProcessMessages (): Boolean;
  41
  42
  43 var
  44   gwin_dump_extensions: Boolean = false;
  45   gwin_has_stencil: Boolean = false;
  46   gwin_k8_enable_light_experiments: Boolean = false;
  47   g_dbg_aimline_on: Boolean = false;
  48
  49
  50 implementation
  51
  52 uses
  53 {$IFDEF WINDOWS}Windows,{$ENDIF}
  54 {$INCLUDE ../nogl/noGLuses.inc}
  55 {$IFDEF ENABLE_HOLMES}
  56   g_holmes, sdlcarcass, fui_ctls,
  57 {$ENDIF}
  58   SysUtils, Classes, MAPDEF,
  59   SDL2, e_graphics, e_log, e_texture, g_main,
  60   g_console, e_input, g_options, g_game,
  61   g_basic, g_textures, e_sound, g_sound, g_menu, ENet, g_net,
  62   g_map, g_gfx, g_monsters, xprofiler,
  63   g_touch;
  64
  65
  66 const
  67   ProgressUpdateMSecs = 1;//100;
  68
  69 var
  70   h_Wnd: PSDL_Window = nil;
  71   h_GL: TSDL_GLContext = nil;
  72   Time, Time_Delta, Time_Old: Int64;
  73   flag: Boolean;
  74 {$IF not DEFINED(HEADLESS)}
  75   wTitle: PChar = nil;
  76   wasFullscreen: Boolean = true; // so we need to recreate the window
  77 {$ENDIF}
  78   wNeedTimeReset: Boolean = false;
  79   wMinimized: Boolean = false;
  80   wMaximized: Boolean = false;
  81   wLoadingProgress: Boolean = false;
  82   wLoadingQuit: Boolean = false;
  83 {$IFNDEF WINDOWS}
  84   ticksOverflow: Int64 = -1;
  85   lastTicks: Uint32 = 0; // to detect overflow
  86 {$ENDIF}
  87   JoystickHatState: array [0..e_MaxJoyHats, HAT_LEFT..HAT_DOWN] of Boolean;
  88
  89 procedure KillGLWindow (preserveGL: Boolean);
  90 begin
  91 {$IFDEF ENABLE_HOLMES}
  92   if (h_GL <> nil) and (not preserveGL) then begin if (assigned(oglDeinitCB)) then oglDeinitCB(); end;
  93 {$ENDIF}
  94   if (h_Wnd <> nil) then SDL_DestroyWindow(h_Wnd);
  95   if (h_GL <> nil) and (not preserveGL) then
  96   begin
  97
  98 {$IFDEF USE_NANOGL}
  99     nanoGL_Destroy;
 100 {$ENDIF}
 101
 102 {$IFDEF USE_NOGL}
 103     nogl_Quit;
 104 {$ENDIF}
 105
 106     SDL_GL_DeleteContext(h_GL);
 107   end;
 108   h_Wnd := nil;
 109   if (not preserveGL) then h_GL := nil;
 110 end;
 111
 112
 113 function g_Window_SetDisplay (preserveGL: Boolean = false): Boolean;
 114 {$IF not DEFINED(HEADLESS)}
 115 var
 116   mode, cmode: TSDL_DisplayMode;
 117   wFlags: LongWord = 0;
 118   nw, nh: Integer;
 119 {$ENDIF}
 120 begin
 121 {$IF not DEFINED(HEADLESS)}
 122   result := false;
 123
 124   e_WriteLog('Setting display mode...', TMsgType.Notify);
 125
 126   wFlags := SDL_WINDOW_OPENGL {or SDL_WINDOW_RESIZABLE};
 127   if gFullscreen then wFlags := wFlags {or SDL_WINDOW_FULLSCREEN} else wFlags := wFlags or SDL_WINDOW_RESIZABLE;
 128   if (not gFullscreen) and (not preserveGL) and gWinMaximized then wFlags := wFlags or SDL_WINDOW_MAXIMIZED else gWinMaximized := false;
 129
 130   if gFullscreen then
 131   begin
 132     mode.w := gScreenWidth;
 133     mode.h := gScreenHeight;
 134     mode.format := 0;
 135     mode.refresh_rate := 0;
 136     mode.driverdata := nil;
 137     if (SDL_GetClosestDisplayMode(0, @mode, @cmode) = nil) then
 138     begin
 139       e_WriteLog('SDL: cannot find display mode for '+IntToStr(gScreenWidth), TMsgType.Notify);
 140       gScreenWidth := 800;
 141       gScreenHeight := 600;
 142     end
 143     else
 144     begin
 145       e_WriteLog('SDL: found display mode for '+IntToStr(gScreenWidth)+'x'+IntToStr(gScreenHeight)+': '+IntToStr(cmode.w)+'x'+IntToStr(cmode.h), TMsgType.Notify);
 146       gScreenWidth := cmode.w;
 147       gScreenHeight := cmode.h;
 148     end;
 149   end;
 150
 151   if (preserveGL) and (h_Wnd <> nil) and (not gFullscreen) and (not wasFullscreen) then
 152   begin
 153     //SDL_SetWindowMaximumSize(h_Wnd, gScreenWidth, gScreenHeight);
 154     //SDL_SetWindowDisplayMode(h_Wnd, @cmode);
 155     if (wMaximized) then SDL_RestoreWindow(h_Wnd);
 156     wMaximized := false;
 157     gWinMaximized := false;
 158     SDL_SetWindowSize(h_Wnd, gScreenWidth, gScreenHeight);
 159     //SDL_SetWindowFullscreen(h_Wnd, SDL_WINDOW_FULLSCREEN);
 160     //SDL_SetWindowFullscreen(h_Wnd, 0);
 161   end
 162   else
 163   begin
 164     KillGLWindow(preserveGL);
 165     h_Wnd := SDL_CreateWindow(PChar(wTitle), gWinRealPosX, gWinRealPosY, gScreenWidth, gScreenHeight, wFlags);
 166     if gFullscreen then
 167       SDL_SetWindowFullscreen(h_Wnd, SDL_WINDOW_FULLSCREEN);
 168     if (h_Wnd = nil) then exit;
 169   end;
 170   wasFullscreen := gFullscreen;
 171
 172   SDL_GL_MakeCurrent(h_Wnd, h_GL);
 173   SDL_ShowCursor(SDL_DISABLE);
 174   if (h_GL <> nil) then g_SetVSync(gVSync);
 175   if (gFullscreen) then
 176   begin
 177     nw := 0;
 178     nh := 0;
 179     SDL_GetWindowSize(h_Wnd, @nw, @nh);
 180     if (nw > 128) and (nh > 128) then
 181     begin
 182       e_WriteLog('SDL: fullscreen window got size '+IntToStr(nw)+'x'+IntToStr(nh)+': '+IntToStr(gScreenWidth)+'x'+IntToStr(gScreenHeight), TMsgType.Notify);
 183       gScreenWidth := nw;
 184       gScreenHeight := nh;
 185     end
 186     else
 187     begin
 188       e_WriteLog('SDL: fullscreen window got invalid size: '+IntToStr(nw)+'x'+IntToStr(nh), TMsgType.Notify);
 189     end;
 190   end;
 191
 192   {$IFDEF ENABLE_HOLMES}
 193     fuiScrWdt := gScreenWidth;
 194     fuiScrHgt := gScreenHeight;
 195     if (h_GL <> nil) and (not preserveGL) then begin if (assigned(oglInitCB)) then oglInitCB(); end;
 196   {$ENDIF}
 197 {$ENDIF}
 198
 199   result := true;
 200 end;
 201
 202
 203 function GetDisplayModes (dbpp: LongWord; var selres: LongWord): SSArray;
 204 var
 205   mode: TSDL_DisplayMode;
 206   res, i, k, n, pw, ph: Integer;
 207 begin
 208   SetLength(result, 0);
 209   {$IFDEF HEADLESS}exit;{$ENDIF}
 210   k := 0; selres := 0;
 211   n := SDL_GetNumDisplayModes(0);
 212   pw := 0; ph := 0;
 213   for i := 0 to n do
 214   begin
 215     res := SDL_GetDisplayMode(0, i, @mode);
 216     if res < 0 then continue;
 217     if SDL_BITSPERPIXEL(mode.format) = gBPP then continue;
 218     if (mode.w = pw) and (mode.h = ph) then continue;
 219     if (mode.w = gScreenWidth) and (mode.h = gScreenHeight) then
 220       selres := k;
 221     Inc(k);
 222     SetLength(result, k);
 223     result[k-1] := IntToStr(mode.w) + 'x' + IntToStr(mode.h);
 224     pw := mode.w; ph := mode.h
 225   end;
 226
 227   e_WriteLog('SDL: Got ' + IntToStr(k) + ' resolutions.', TMsgType.Notify);
 228 end;
 229
 230
 231 procedure Sleep (ms: LongWord);
 232 begin
 233   SDL_Delay(ms);
 234 end;
 235
 236
 237 procedure ChangeWindowSize (requested: Boolean);
 238 begin
 239   e_LogWritefln('  ChangeWindowSize: (ws=%dx%d) (ss=%dx%d)', [gWinSizeX, gWinSizeY, gScreenWidth, gScreenHeight]);
 240   gWinSizeX := gScreenWidth;
 241   gWinSizeY := gScreenHeight;
 242 {$IF not DEFINED(HEADLESS)}
 243   {$IFDEF ENABLE_HOLMES}
 244     fuiScrWdt := gScreenWidth;
 245     fuiScrHgt := gScreenHeight;
 246   {$ENDIF}
 247   e_ResizeWindow(gScreenWidth, gScreenHeight);
 248   g_Game_SetupScreenSize();
 249   {$IF DEFINED(ANDROID)}
 250     (* This will fix menu reset on keyboard showing *)
 251     if requested then
 252       g_Menu_Reset;
 253   {$ELSE}
 254     g_Menu_Reset;
 255   {$ENDIF}
 256   g_Game_ClearLoading();
 257 {$ENDIF}
 258 end;
 259
 260
 261 function g_Window_SetSize (w, h: Word; fullscreen: Boolean): Boolean;
 262 {$IF not DEFINED(HEADLESS)}
 263 var
 264   preserve: Boolean;
 265 {$ENDIF}
 266 begin
 267   result := false;
 268 {$IF not DEFINED(HEADLESS)}
 269   preserve := false;
 270
 271   if (gScreenWidth <> w) or (gScreenHeight <> h) then
 272   begin
 273     result := true;
 274     preserve := true;
 275     gScreenWidth := w;
 276     gScreenHeight := h;
 277   end;
 278
 279   if (gFullscreen <> fullscreen) then
 280   begin
 281     result := true;
 282     preserve := true;
 283     gFullscreen := fullscreen;
 284     preserve := true;
 285   end;
 286
 287   if result then
 288   begin
 289     g_Window_SetDisplay(preserve);
 290     ChangeWindowSize(true);
 291   end;
 292 {$ENDIF}
 293 end;
 294
 295
 296 function WindowEventHandler (constref ev: TSDL_WindowEvent): Boolean;
 297 var
 298   wActivate, wDeactivate: Boolean;
 299 begin
 300   result := false;
 301   wActivate := false;
 302   wDeactivate := false;
 303
 304   case ev.event of
 305     SDL_WINDOWEVENT_MOVED:
 306     begin
 307       if not (gFullscreen or gWinMaximized) then
 308       begin
 309         gWinRealPosX := ev.data1;
 310         gWinRealPosY := ev.data2;
 311       end;
 312     end;
 313
 314     SDL_WINDOWEVENT_MINIMIZED:
 315     begin
 316       e_UnpressAllKeys();
 317       if not wMinimized then
 318       begin
 319         e_ResizeWindow(0, 0);
 320         wMinimized := true;
 321         if g_debug_WinMsgs then
 322         begin
 323           g_Console_Add('Now minimized');
 324           e_WriteLog('[DEBUG] WinMsgs: Now minimized', TMsgType.Notify);
 325         end;
 326         wDeactivate := true;
 327       end;
 328     end;
 329
 330     SDL_WINDOWEVENT_RESIZED:
 331     begin
 332       e_LogWritefln('Resize: (os=%dx%d) (ns=%dx%d)', [gScreenWidth, gScreenHeight, Integer(ev.data1), Integer(ev.data2)]);
 333       {if (gFullscreen) then
 334       begin
 335         e_LogWriteln('  fullscreen fix applied.');
 336         if (gScreenWidth <> ev.data1) or (gScreenHeight <> ev.data2) then
 337         begin
 338           SDL_SetWindowSize(h_Wnd, gScreenWidth, gScreenHeight);
 339         end;
 340       end
 341       else}
 342       begin
 343         gScreenWidth := ev.data1;
 344         gScreenHeight := ev.data2;
 345       end;
 346       ChangeWindowSize(false);
 347       SwapBuffers();
 348       if g_debug_WinMsgs then
 349       begin
 350         g_Console_Add('Resized to ' + IntToStr(ev.data1) + 'x' + IntToStr(ev.data2));
 351         e_WriteLog('[DEBUG] WinMsgs: Resized to ' + IntToStr(ev.data1) + 'x' + IntToStr(ev.data2), TMsgType.Notify);
 352       end;
 353     end;
 354
 355     SDL_WINDOWEVENT_EXPOSED:
 356       SwapBuffers();
 357
 358     SDL_WINDOWEVENT_MAXIMIZED:
 359     begin
 360       wMaximized := true;
 361       if wMinimized then
 362       begin
 363         e_ResizeWindow(gScreenWidth, gScreenHeight);
 364         wMinimized := false;
 365         wActivate := true;
 366       end;
 367       if (not gWinMaximized) and (not gFullscreen) then
 368       begin
 369         gWinMaximized := true;
 370         if g_debug_WinMsgs then
 371         begin
 372           g_Console_Add('Now maximized');
 373           e_WriteLog('[DEBUG] WinMsgs: Now maximized', TMsgType.Notify);
 374         end;
 375       end;
 376     end;
 377
 378     SDL_WINDOWEVENT_RESTORED:
 379     begin
 380       wMaximized := false;
 381       if wMinimized then
 382       begin
 383         e_ResizeWindow(gScreenWidth, gScreenHeight);
 384         wMinimized := false;
 385         wActivate := true;
 386       end;
 387       gWinMaximized := false;
 388       if g_debug_WinMsgs then
 389       begin
 390         g_Console_Add('Now restored');
 391         e_WriteLog('[DEBUG] WinMsgs: Now restored', TMsgType.Notify);
 392       end;
 393     end;
 394
 395     SDL_WINDOWEVENT_FOCUS_GAINED:
 396     begin
 397       wActivate := true;
 398       //e_WriteLog('window gained focus!', MSG_NOTIFY);
 399     end;
 400
 401     SDL_WINDOWEVENT_FOCUS_LOST:
 402     begin
 403       wDeactivate := true;
 404       e_UnpressAllKeys();
 405       //e_WriteLog('window lost focus!', MSG_NOTIFY);
 406     end;
 407   end;
 408
 409   if wDeactivate then
 410   begin
 411     if gWinActive then
 412     begin
 413       e_WriteLog('deactivating window', TMsgType.Notify);
 414       e_EnableInput := false;
 415       e_ClearInputBuffer();
 416
 417       if gMuteWhenInactive then
 418       begin
 419         //e_WriteLog('deactivating sounds', MSG_NOTIFY);
 420         e_MuteChannels(true);
 421       end;
 422
 423       if g_debug_WinMsgs then
 424       begin
 425         g_Console_Add('Now inactive');
 426         e_WriteLog('[DEBUG] WinMsgs: Now inactive', TMsgType.Notify);
 427       end;
 428
 429       gWinActive := false;
 430
 431       {$IFDEF ENABLE_HOLMES}
 432         if assigned(winBlurCB) then winBlurCB();
 433       {$ENDIF}
 434     end;
 435   end
 436   else if wActivate then
 437   begin
 438     if not gWinActive then
 439     begin
 440       //e_WriteLog('activating window', MSG_NOTIFY);
 441       e_EnableInput := true;
 442
 443       if gMuteWhenInactive then
 444       begin
 445         //e_WriteLog('activating sounds', MSG_NOTIFY);
 446         e_MuteChannels(false);
 447       end;
 448
 449       if g_debug_WinMsgs then
 450       begin
 451         g_Console_Add('Now active');
 452         e_WriteLog('[DEBUG] WinMsgs: Now active', TMsgType.Notify);
 453       end;
 454
 455       gWinActive := true;
 456
 457       {$IFDEF ENABLE_HOLMES}
 458         if assigned(winFocusCB) then winFocusCB();
 459       {$ENDIF}
 460     end;
 461   end;
 462 end;
 463
 464
 465 function EventHandler (var ev: TSDL_Event): Boolean;
 466 var
 467   key, keychr: Word;
 468   uc: UnicodeChar;
 469   down: Boolean;
 470   i: Integer;
 471   hat: array [HAT_LEFT..HAT_DOWN] of Boolean;
 472 begin
 473   result := false;
 474
 475   case ev.type_ of
 476     SDL_WINDOWEVENT:
 477       result := WindowEventHandler(ev.window);
 478
 479     SDL_QUITEV:
 480       begin
 481         if (gExit <> EXIT_QUIT) then
 482         begin
 483           if not wLoadingProgress then
 484           begin
 485             g_Game_Free();
 486             g_Game_Quit();
 487           end
 488           else
 489           begin
 490             wLoadingQuit := true;
 491           end;
 492         end;
 493         result := true;
 494       end;
 495
 496     SDL_KEYDOWN, SDL_KEYUP:
 497       begin
 498         key := ev.key.keysym.scancode;
 499         if key = SDL_SCANCODE_AC_BACK then
 500           key := SDL_SCANCODE_ESCAPE;
 501         down := (ev.type_ = SDL_KEYDOWN);
 502         {$IF not DEFINED(HEADLESS) and DEFINED(ENABLE_HOLMES)}
 503         if fuiOnSDLEvent(ev) then
 504         begin
 505           // event eaten, but...
 506           if not down then e_KeyUpDown(key, false);
 507           exit;
 508         end;
 509         {$ENDIF}
 510         if ev.key._repeat = 0 then
 511         begin
 512           e_KeyUpDown(key, down);
 513           g_Console_ProcessBind(key, down)
 514         end;
 515         if down then KeyPress(key);
 516       end;
 517
 518     SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP:
 519       if (ev.jbutton.which < e_MaxJoys) and (ev.jbutton.button < e_MaxJoyBtns) then
 520       begin
 521         key := e_JoyButtonToKey(ev.jbutton.which, ev.jbutton.button);
 522         down := ev.type_ = SDL_JOYBUTTONDOWN;
 523         e_KeyUpDown(key, down);
 524         g_Console_ProcessBind(key, down);
 525         if down then KeyPress(key)
 526       end;
 527
 528     SDL_JOYAXISMOTION:
 529       if (ev.jaxis.which < e_MaxJoys) and (ev.jaxis.axis < e_MaxJoyAxes) then
 530       begin
 531         down := ev.jaxis.value <> Joysticks[ev.jaxis.which].AxisZero[ev.jaxis.axis];
 532         if ev.jaxis.value < Joysticks[ev.jaxis.which].AxisZero[ev.jaxis.axis] - e_JoystickDeadzones[ev.jaxis.which] then
 533           key := e_JoyAxisToKey(ev.jaxis.which, ev.jaxis.axis, AX_MINUS)
 534         else
 535           key := e_JoyAxisToKey(ev.jaxis.which, ev.jaxis.axis, AX_PLUS);
 536         e_KeyUpDown(key, down);
 537         g_Console_ProcessBind(key, down);
 538         if down then KeyPress(key)
 539       end;
 540
 541     SDL_JOYHATMOTION:
 542       if (ev.jhat.which < e_MaxJoys) and (ev.jhat.hat < e_MaxJoyHats) then
 543       begin
 544         hat[HAT_UP] := LongBool(ev.jhat.value and SDL_HAT_UP);
 545         hat[HAT_DOWN] := LongBool(ev.jhat.value and SDL_HAT_DOWN);
 546         hat[HAT_LEFT] := LongBool(ev.jhat.value and SDL_HAT_LEFT);
 547         hat[HAT_RIGHT] := LongBool(ev.jhat.value and SDL_HAT_RIGHT);
 548         for i := HAT_LEFT to HAT_DOWN do
 549         begin
 550           if JoystickHatState[ev.jhat.which, i] <> hat[i] then
 551           begin
 552             down := hat[i];
 553             key := e_JoyHatToKey(ev.jhat.which, ev.jhat.hat, i);
 554             e_KeyUpDown(key, down);
 555             g_Console_ProcessBind(key, down);
 556             if down then KeyPress(key)
 557           end
 558         end;
 559         JoystickHatState[ev.jhat.which] := hat
 560       end;
 561
 562 (*
 563     SDL_JOYDEVICEADDED, SDL_JOYDEVICEREMOVED:
 564       begin
 565         // TODO update menu here
 566       end
 567 *)
 568
 569     {$IF not DEFINED(HEADLESS) and DEFINED(ENABLE_HOLMES)}
 570     SDL_MOUSEBUTTONDOWN, SDL_MOUSEBUTTONUP, SDL_MOUSEWHEEL, SDL_MOUSEMOTION:
 571       fuiOnSDLEvent(ev);
 572     {$ENDIF}
 573
 574     SDL_TEXTINPUT:
 575       begin
 576         Utf8ToUnicode(@uc, PChar(ev.text.text), 1);
 577         keychr := Word(uc);
 578         if (keychr > 127) then keychr := Word(wchar2win(WideChar(keychr)));
 579         if (keychr > 0) and (keychr <= 255) then CharPress(AnsiChar(keychr));
 580       end;
 581
 582     SDL_FINGERMOTION, SDL_FINGERDOWN, SDL_FINGERUP:
 583       g_Touch_HandleEvent(ev.tfinger);
 584
 585     // other key presses and joysticks are handled in e_input
 586   end;
 587 end;
 588
 589
 590 procedure SwapBuffers ();
 591 begin
 592   {$IF not DEFINED(HEADLESS)}
 593   SDL_GL_SwapWindow(h_Wnd);
 594   {$ENDIF}
 595 end;
 596
 597
 598 function CreateGLWindow (Title: PChar): Boolean;
 599 begin
 600   result := false;
 601
 602   gWinSizeX := gScreenWidth;
 603   gWinSizeY := gScreenHeight;
 604
 605 {$IF not DEFINED(HEADLESS)}
 606   wTitle := Title;
 607 {$ENDIF}
 608   e_WriteLog('Creating window', TMsgType.Notify);
 609
 610   if not g_Window_SetDisplay() then
 611   begin
 612     KillGLWindow(false);
 613     e_WriteLog('Window creation error (resolution not supported?)', TMsgType.Fatal);
 614     exit;
 615   end;
 616
 617 {$IF not DEFINED(HEADLESS)}
 618   h_GL := SDL_GL_CreateContext(h_Wnd);
 619   if (h_GL = nil) then exit;
 620   {$IFDEF ENABLE_HOLMES}
 621     fuiScrWdt := gScreenWidth;
 622     fuiScrHgt := gScreenHeight;
 623   {$ENDIF}
 624   SDL_GL_MakeCurrent(h_Wnd, h_GL);
 625 {$IFDEF USE_NANOGL}
 626   if nanoGL_Init() = 0 then
 627   begin
 628     KillGLWindow(false);
 629     e_WriteLog('nanoGL initialization error', TMsgType.Fatal);
 630     exit;
 631   end;
 632 {$ENDIF}
 633 {$IFDEF USE_NOGL}
 634   nogl_Init;
 635 {$ENDIF}
 636   {$IFDEF ENABLE_HOLMES}
 637     if (assigned(oglInitCB)) then oglInitCB();
 638   {$ENDIF}
 639   if (h_GL <> nil) then g_SetVSync(gVSync);
 640 {$ENDIF}
 641
 642   e_ResizeWindow(gScreenWidth, gScreenHeight);
 643   e_InitGL();
 644
 645   result := true;
 646 end;
 647
 648
 649 {$IFDEF WINDOWS}
 650 // windoze sux; in headless mode `GetTickCount()` (and SDL) returns shit
 651 function GetTimer (): Int64;
 652 var
 653   F, C: Int64;
 654 begin
 655   QueryPerformanceFrequency(F);
 656   QueryPerformanceCounter(C);
 657   result := Round(C/F*1000{000});
 658 end;
 659 {$ELSE}
 660 function GetTimer (): Int64;
 661 var
 662   t: Uint32;
 663   tt: Int64;
 664 begin
 665   t := SDL_GetTicks();
 666   if (ticksOverflow = -1) then
 667   begin
 668     ticksOverflow := 0;
 669     lastTicks := t;
 670   end
 671   else
 672   begin
 673     if (lastTicks > t) then
 674     begin
 675       // overflow, increment overflow ;-)
 676       ticksOverflow := ticksOverflow+(Int64($ffffffff)+Int64(1));
 677       tt := (Int64($ffffffff)+Int64(1))+Int64(t);
 678       t := Uint32(tt-lastTicks);
 679     end;
 680   end;
 681   lastTicks := t;
 682   result := ticksOverflow+Int64(t);
 683 end;
 684 {$ENDIF}
 685
 686
 687 procedure ResetTimer ();
 688 begin
 689   wNeedTimeReset := true;
 690 end;
 691
 692
 693 procedure PushExitEvent ();
 694 var
 695   ev: TSDL_Event;
 696 begin
 697   ev.type_ := SDL_QUITEV;
 698   SDL_PushEvent(@ev);
 699 end;
 700
 701
 702 var
 703   prevLoadingUpdateTime: UInt64 = 0;
 704
 705 procedure ProcessLoading (forceUpdate: Boolean=false);
 706 var
 707   ev: TSDL_Event;
 708   ID: LongWord;
 709   stt: UInt64;
 710 begin
 711   FillChar(ev, sizeof(ev), 0);
 712   wLoadingProgress := true;
 713
 714   while (SDL_PollEvent(@ev) > 0) do
 715   begin
 716     EventHandler(ev);
 717     if (ev.type_ = SDL_QUITEV) then break;
 718   end;
 719   //e_PollJoysticks();
 720
 721   if (ev.type_ = SDL_QUITEV) or (gExit = EXIT_QUIT) then
 722   begin
 723     wLoadingProgress := false;
 724     exit;
 725   end;
 726
 727   if not wMinimized then
 728   begin
 729     if forceUpdate then
 730     begin
 731       prevLoadingUpdateTime := getTimeMilli();
 732     end
 733     else
 734     begin
 735       stt := getTimeMilli();
 736       if (stt < prevLoadingUpdateTime) or (stt-prevLoadingUpdateTime >= ProgressUpdateMSecs) then
 737       begin
 738         prevLoadingUpdateTime := stt;
 739         forceUpdate := true;
 740       end;
 741     end;
 742
 743     if forceUpdate then
 744     begin
 745       if g_Texture_Get('INTER', ID) then
 746       begin
 747         e_DrawSize(ID, 0, 0, 0, false, false, gScreenWidth, gScreenHeight);
 748         e_DarkenQuadWH(0, 0, gScreenWidth, gScreenHeight, 150);
 749       end
 750       else
 751       begin
 752         e_Clear(GL_COLOR_BUFFER_BIT, 0, 0, 0);
 753       end;
 754
 755       DrawLoadingStat();
 756       SwapBuffers();
 757     end;
 758   end;
 759
 760   e_SoundUpdate();
 761
 762   if NetMode = NET_SERVER then
 763   begin
 764     g_Net_Host_Update();
 765   end
 766   else
 767   begin
 768     if (NetMode = NET_CLIENT) and (NetState <> NET_STATE_AUTH) then g_Net_Client_UpdateWhileLoading();
 769   end;
 770
 771   wLoadingProgress := false;
 772 end;
 773
 774
 775 function g_ProcessMessages (): Boolean;
 776 var
 777   ev: TSDL_Event;
 778 begin
 779   result := false;
 780   FillChar(ev, SizeOf(ev), 0);
 781   while (SDL_PollEvent(@ev) > 0) do
 782   begin
 783     result := EventHandler(ev);
 784     if (ev.type_ = SDL_QUITEV) then exit;
 785   end;
 786   //e_PollJoysticks();
 787 end;
 788
 789
 790 function ProcessMessage (): Boolean;
 791 var
 792   i, t: Integer;
 793 begin
 794   result := g_ProcessMessages();
 795
 796   Time := GetTimer();
 797   Time_Delta := Time-Time_Old;
 798
 799   flag := false;
 800
 801   if wNeedTimeReset then
 802   begin
 803     Time_Delta := 28;
 804     wNeedTimeReset := false;
 805   end;
 806
 807   g_Map_ProfilersBegin();
 808   g_Mons_ProfilersBegin();
 809
 810   t := Time_Delta div 28;
 811   if (t > 0) then
 812   begin
 813     flag := true;
 814     for i := 1 to t do
 815     begin
 816            if (NetMode = NET_SERVER) then g_Net_Host_Update()
 817       else if (NetMode = NET_CLIENT) then g_Net_Client_Update();
 818       Update();
 819     end;
 820   end
 821   else
 822   begin
 823          if (NetMode = NET_SERVER) then g_Net_Host_Update()
 824     else if (NetMode = NET_CLIENT) then g_Net_Client_Update();
 825   end;
 826
 827   g_Map_ProfilersEnd();
 828   g_Mons_ProfilersEnd();
 829
 830   if wLoadingQuit then
 831   begin
 832     g_Game_Free();
 833     g_Game_Quit();
 834   end;
 835
 836   if (gExit = EXIT_QUIT) then
 837   begin
 838     result := true;
 839     exit;
 840   end;
 841
 842   // Âðåìÿ ïðåäûäóùåãî îáíîâëåíèÿ
 843   if flag then
 844   begin
 845     Time_Old := Time-(Time_Delta mod 28);
 846     if (not wMinimized) then
 847     begin
 848       Draw();
 849       SwapBuffers();
 850     end;
 851   end
 852   else
 853   begin
 854     Sleep(1); // release time slice, so we won't eat 100% CPU
 855   end;
 856
 857   e_SoundUpdate();
 858 end;
 859
 860
 861 procedure ReDrawWindow ();
 862 begin
 863   SwapBuffers();
 864 end;
 865
 866
 867 procedure g_SetVSync (vsync: Boolean);
 868 {$IF not DEFINED(HEADLESS)}
 869 var
 870   v: Byte;
 871 {$ENDIF}
 872 begin
 873 {$IF not DEFINED(HEADLESS)}
 874   if vsync then v := 1 else v := 0;
 875   if (SDL_GL_SetSwapInterval(v) <> 0) then
 876   begin
 877     e_WriteLog('oops; can''t change vsync option, restart required', TMsgType.Warning);
 878   end
 879   else
 880   begin
 881     if vsync then e_WriteLog('VSync: ON', TMsgType.Notify) else e_WriteLog('VSync: OFF', TMsgType.Notify);
 882   end;
 883 {$ENDIF}
 884 end;
 885
 886
 887 procedure InitOpenGL ();
 888 begin
 889 {$IF not DEFINED(HEADLESS)}
 890   {$IFDEF USE_GLES1}
 891     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
 892     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
 893     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
 894   {$ELSE}
 895     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
 896     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
 897     SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
 898     SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
 899     SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
 900     SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
 901     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 902     SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); // lights; it is enough to have 1-bit stencil buffer for lighting, but...
 903   {$ENDIF}
 904 {$ENDIF}
 905 end;
 906
 907
 908 function glHasExtension (const name: AnsiString): Boolean;
 909 var
 910   exts: PChar;
 911   i: Integer;
 912   found: Boolean;
 913   extName: ShortString;
 914 begin
 915   result := false;
 916   if (Length(name) = 0) then exit;
 917   exts := glGetString(GL_EXTENSIONS);
 918   if (exts = nil) then exit;
 919   while (exts[0] <> #0) and (exts[0] = ' ') do Inc(exts);
 920   while (exts[0] <> #0) do
 921   begin
 922     if gwin_dump_extensions then
 923     begin
 924       i := 0;
 925       while (exts[i] <> #0) and (exts[i] <> ' ') do Inc(i);
 926       if i > 255 then
 927       begin
 928         e_WriteLog('FUUUUUUUUUUUUU', TMsgType.Warning);
 929       end
 930       else
 931       begin
 932         Move(exts^, extName[1], i);
 933         extName[0] := Char(i);
 934         e_WriteLog(Format('EXT: %s', [extName]), TMsgType.Notify);
 935       end;
 936     end;
 937     found := true;
 938     for i := 0 to length(name)-1 do
 939     begin
 940       if (exts[i] = #0) then begin found := false; break; end;
 941       if (exts[i] <> name[i+1]) then begin found := false; break; end;
 942     end;
 943     if found and ((exts[Length(name)] = #0) or (exts[Length(name)] = ' ')) then begin result := true; exit; end;
 944     while (exts[0] <> #0) and (exts[0] <> ' ') do Inc(exts);
 945     while (exts[0] <> #0) and (exts[0] = ' ') do Inc(exts);
 946   end;
 947 end;
 948
 949
 950 function SDLMain (): Integer;
 951 var
 952   idx: Integer;
 953   {$IF not DEFINED(HEADLESS)}
 954   ltmp: Integer;
 955   {$ENDIF}
 956   arg: AnsiString;
 957   mdfo: TStream;
 958   {$IFDEF ENABLE_HOLMES}
 959   itmp: Integer;
 960   valres: Word;
 961   {$ENDIF}
 962 begin
 963 {$IFDEF HEADLESS}
 964   e_NoGraphics := true;
 965 {$ELSE}
 966   {$IFDEF ENABLE_HOLMES}
 967     if (not g_holmes_imfunctional) then
 968     begin
 969       uiInitialize();
 970       uiContext.font := 'win14';
 971     end;
 972   {$ENDIF}
 973 {$ENDIF}
 974
 975   idx := 1;
 976   while (idx <= ParamCount) do
 977   begin
 978     arg := ParamStr(idx);
 979     Inc(idx);
 980     if arg = '--opengl-dump-exts' then gwin_dump_extensions := true;
 981     //if arg = '--twinkletwinkle' then gwin_k8_enable_light_experiments := true;
 982     if arg = '--jah' then g_profile_history_size := 100;
 983     if arg = '--no-particles' then gpart_dbg_enabled := false;
 984     if arg = '--no-los' then gmon_dbg_los_enabled := false;
 985
 986     if arg = '--profile-render' then g_profile_frame_draw := true;
 987     if arg = '--profile-coldet' then g_profile_collision := true;
 988     if arg = '--profile-los' then g_profile_los := true;
 989
 990     if arg = '--no-part-phys' then gpart_dbg_phys_enabled := false;
 991     if arg = '--no-part-physics' then gpart_dbg_phys_enabled := false;
 992     if arg = '--no-particles-phys' then gpart_dbg_phys_enabled := false;
 993     if arg = '--no-particles-physics' then gpart_dbg_phys_enabled := false;
 994     if arg = '--no-particle-phys' then gpart_dbg_phys_enabled := false;
 995     if arg = '--no-particle-physics' then gpart_dbg_phys_enabled := false;
 996
 997     {.$IF DEFINED(D2F_DEBUG)}
 998     if arg = '--aimline' then g_dbg_aimline_on := true;
 999     {.$ENDIF}
1000
1001 {$IFDEF ENABLE_HOLMES}
1002     if arg = '--holmes' then begin g_holmes_enabled := true; g_Game_SetDebugMode(); end;
1003
1004     if (arg = '--holmes-ui-scale') or (arg = '-holmes-ui-scale') then
1005     begin
1006       if (idx <= ParamCount) then
1007       begin
1008         if not conParseFloat(fuiRenderScale, ParamStr(idx)) then fuiRenderScale := 1.0;
1009         Inc(idx);
1010       end;
1011     end;
1012
1013     if (arg = '--holmes-font') or (arg = '-holmes-font') then
1014     begin
1015       if (idx <= ParamCount) then
1016       begin
1017         itmp := 0;
1018         val(ParamStr(idx), itmp, valres);
1019         {$IFNDEF HEADLESS}
1020         if (valres = 0) and (not g_holmes_imfunctional) then
1021         begin
1022           case itmp of
1023             8: uiContext.font := 'win8';
1024             14: uiContext.font := 'win14';
1025             16: uiContext.font := 'win16';
1026           end;
1027         end;
1028         {$ELSE}
1029         // fuck off, fpc!
1030         itmp := itmp;
1031         valres := valres;
1032         {$ENDIF}
1033         Inc(idx);
1034       end;
1035     end;
1036 {$ENDIF}
1037
1038     if (arg = '--game-scale') or (arg = '-game-scale') then
1039     begin
1040       if (idx <= ParamCount) then
1041       begin
1042         if not conParseFloat(g_dbg_scale, ParamStr(idx)) then g_dbg_scale := 1.0;
1043         Inc(idx);
1044       end;
1045     end;
1046
1047     if (arg = '--write-mapdef') or (arg = '-write-mapdef') then
1048     begin
1049       mdfo := createDiskFile('mapdef.txt');
1050       mdfo.WriteBuffer(defaultMapDef[1], Length(defaultMapDef));
1051       mdfo.Free();
1052       Halt(0);
1053     end;
1054   end;
1055
1056   e_WriteLog('Initializing OpenGL', TMsgType.Notify);
1057   InitOpenGL();
1058
1059   e_WriteLog('Creating GL window', TMsgType.Notify);
1060   if not CreateGLWindow(PChar(Format('Doom 2D: Forever %s', [GAME_VERSION]))) then
1061   begin
1062     result := 0;
1063     e_WriteLog('Unable to create GL window: ' + SDL_GetError(), TMsgType.Fatal);
1064     exit;
1065   end;
1066
1067   {EnumDisplayModes();}
1068
1069 {$IFDEF HEADLESS}
1070   //gwin_k8_enable_light_experiments := false;
1071   gwin_has_stencil := false;
1072   glLegacyNPOT := false;
1073   gwin_dump_extensions := false;
1074 {$ELSE}
1075   SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE, @ltmp);
1076   e_LogWritefln('stencil buffer size: %s', [ltmp]);
1077   gwin_has_stencil := (ltmp > 0);
1078
1079   if glHasExtension('GL_ARB_texture_non_power_of_two') or
1080      glHasExtension('GL_OES_texture_npot') then
1081   begin
1082     e_WriteLog('NPOT textures: YES', TMsgType.Notify);
1083     glLegacyNPOT := false;
1084   end
1085   else
1086   begin
1087     e_WriteLog('NPOT textures: NO', TMsgType.Warning);
1088     glLegacyNPOT := true;
1089   end;
1090   gwin_dump_extensions := false;
1091 {$ENDIF}
1092
1093   Init();
1094   Time_Old := GetTimer();
1095
1096   // Êîìàíäíàÿ ñòðîêà
1097   if (ParamCount > 0) then g_Game_Process_Params();
1098
1099   // Çàïðîñ ÿçûêà
1100   if (not gGameOn) and gAskLanguage then g_Menu_AskLanguage();
1101
1102   e_WriteLog('Entering the main loop', TMsgType.Notify);
1103
1104   // main loop
1105   while not ProcessMessage() do begin end;
1106
1107   Release();
1108   KillGLWindow(false);
1109
1110   result := 0;
1111 end;
1112
1113
1114 end.