1 (* Copyright (C) DooM 2D:Forever Developers
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.
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.
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/>.
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 ProcessLoading();
32 procedure ReDrawWindow();
33 procedure SwapBuffers();
34 procedure Sleep(ms
: LongWord);
35 function GetDisplayModes(dBPP
: DWORD
; var SelRes
: DWORD
): SArray
;
36 function g_Window_SetDisplay(PreserveGL
: Boolean = False): Boolean;
37 function g_Window_SetSize(W
, H
: Word; FScreen
: Boolean): Boolean;
40 gwin_dump_extensions
: Boolean = false;
41 gwin_has_stencil
: Boolean = false;
46 {$IFDEF WINDOWS}Windows
,{$ENDIF}
47 SDL2
, GL
, GLExt
, e_graphics
, e_log
, g_main
,
48 g_console
, SysUtils
, e_input
, g_options
, g_game
,
49 g_basic
, g_textures
, e_sound
, g_sound
, g_menu
, ENet
, g_net
;
55 Time
, Time_Delta
, Time_Old
: Int64;
58 wNeedTimeReset
: Boolean = False;
59 //wWindowCreated: Boolean = False;
60 //wCursorShown: Boolean = False;
61 wMinimized
: Boolean = False;
62 //wNeedFree: Boolean = True;
63 wLoadingProgress
: Boolean = False;
64 wLoadingQuit
: Boolean = False;
65 {wWinPause: Byte = 0;}
67 ticksOverflow
: Int64 = -1;
68 lastTicks
: Uint32
= 0; // to detect overflow
72 // TODO: move this to a separate file
73 CP1251
: array [0..127] of Word = (
74 $0402,$0403,$201A,$0453,$201E,$2026,$2020,$2021,$20AC,$2030,$0409,$2039,$040A,$040C,$040B,$040F,
75 $0452,$2018,$2019,$201C,$201D,$2022,$2013,$2014,$003F,$2122,$0459,$203A,$045A,$045C,$045B,$045F,
76 $00A0,$040E,$045E,$0408,$00A4,$0490,$00A6,$00A7,$0401,$00A9,$0404,$00AB,$00AC,$00AD,$00AE,$0407,
77 $00B0,$00B1,$0406,$0456,$0491,$00B5,$00B6,$00B7,$0451,$2116,$0454,$00BB,$0458,$0405,$0455,$0457,
78 $0410,$0411,$0412,$0413,$0414,$0415,$0416,$0417,$0418,$0419,$041A,$041B,$041C,$041D,$041E,$041F,
79 $0420,$0421,$0422,$0423,$0424,$0425,$0426,$0427,$0428,$0429,$042A,$042B,$042C,$042D,$042E,$042F,
80 $0430,$0431,$0432,$0433,$0434,$0435,$0436,$0437,$0438,$0439,$043A,$043B,$043C,$043D,$043E,$043F,
81 $0440,$0441,$0442,$0443,$0444,$0445,$0446,$0447,$0448,$0449,$044A,$044B,$044C,$044D,$044E,$044F
84 // TODO: make a transition table or something
85 function WCharToCP1251(wc
: Word): Word;
91 if CP1251
[n
] = wc
then begin Result
:= n
; break
end;
92 Result
:= Result
+ 128;
95 function g_Window_SetDisplay(PreserveGL
: Boolean = False): Boolean;
97 mode
, cmode
: TSDL_DisplayMode
;
106 e_WriteLog('Setting display mode...', MSG_NOTIFY
);
108 wFlags
:= SDL_WINDOW_OPENGL
or SDL_WINDOW_RESIZABLE
;
109 if gFullscreen
then wFlags
:= wFlags
or SDL_WINDOW_FULLSCREEN
;
110 if gWinMaximized
then wFlags
:= wFlags
or SDL_WINDOW_MAXIMIZED
;
114 SDL_DestroyWindow(h_Wnd
);
120 mode
.w
:= gScreenWidth
;
121 mode
.h
:= gScreenHeight
;
123 mode
.refresh_rate
:= 0;
124 mode
.driverdata
:= nil;
125 if SDL_GetClosestDisplayMode(0, @mode
, @cmode
) = nil then
128 gScreenHeight
:= 600;
132 gScreenWidth
:= cmode
.w
;
133 gScreenHeight
:= cmode
.h
;
137 h_Wnd
:= SDL_CreateWindow(PChar(wTitle
), gWinRealPosX
, gWinRealPosY
, gScreenWidth
, gScreenHeight
, wFlags
);
138 if h_Wnd
= nil then Exit
;
140 SDL_GL_MakeCurrent(h_Wnd
, h_GL
);
141 SDL_ShowCursor(SDL_DISABLE
);
146 procedure ReShowCursor();
148 // TODO: what was this for?
151 function GetDisplayModes(dBPP
: DWORD
; var SelRes
: DWORD
): SArray
;
153 mode
: TSDL_DisplayMode
;
154 res
, i
, k
, n
, pw
, ph
: Integer;
156 SetLength(Result
, 0);
157 {$IFDEF HEADLESS}Exit
;{$ENDIF}
159 n
:= SDL_GetNumDisplayModes(0);
163 res
:= SDL_GetDisplayMode(0, i
, @mode
);
164 if res
< 0 then continue
;
165 if SDL_BITSPERPIXEL(mode
.format
) = gBPP
then continue
;
166 if (mode
.w
= pw
) and (mode
.h
= ph
) then continue
;
167 if (mode
.w
= gScreenWidth
) and (mode
.h
= gScreenHeight
) then
170 SetLength(Result
, k
);
171 Result
[k
-1] := IntToStr(mode
.w
) + 'x' + IntToStr(mode
.h
);
172 pw
:= mode
.w
; ph
:= mode
.h
175 e_WriteLog('SDL: Got ' + IntToStr(k
) + ' resolutions.', MSG_NOTIFY
);
178 procedure Sleep(ms
: LongWord);
183 procedure ChangeWindowSize();
185 gWinSizeX
:= gScreenWidth
;
186 gWinSizeY
:= gScreenHeight
;
187 {$IFDEF HEADLESS}Exit
;{$ENDIF}
188 e_ResizeWindow(gScreenWidth
, gScreenHeight
);
189 g_Game_SetupScreenSize();
191 g_Game_ClearLoading();
194 function g_Window_SetSize(W
, H
: Word; FScreen
: Boolean): Boolean;
199 {$IFDEF HEADLESS}Exit
;{$ENDIF}
202 if (gScreenWidth
<> W
) or (gScreenHeight
<> H
) then
209 if gFullscreen
<> FScreen
then
212 gFullscreen
:= FScreen
;
218 g_Window_SetDisplay(Preserve
);
223 function WindowEventHandler(ev
: TSDL_WindowEvent
): Boolean;
225 wActivate
, wDeactivate
: Boolean;
229 wDeactivate
:= False;
232 SDL_WINDOWEVENT_MOVED
:
234 if not (gFullscreen
or gWinMaximized
) then
236 gWinRealPosX
:= ev
.data1
;
237 gWinRealPosY
:= ev
.data2
;
241 SDL_WINDOWEVENT_MINIMIZED
:
243 if not wMinimized
then
245 e_ResizeWindow(0, 0);
248 if g_debug_WinMsgs
then
250 g_Console_Add('Now minimized');
251 e_WriteLog('[DEBUG] WinMsgs: Now minimized', MSG_NOTIFY
);
257 SDL_WINDOWEVENT_RESIZED
:
259 gScreenWidth
:= ev
.data1
;
260 gScreenHeight
:= ev
.data2
;
263 if g_debug_WinMsgs
then
265 g_Console_Add('Resized to ' + IntToStr(ev
.data1
) + 'x' + IntToStr(ev
.data2
));
266 e_WriteLog('[DEBUG] WinMsgs: Resized to ' + IntToStr(ev
.data1
) + 'x' + IntToStr(ev
.data2
), MSG_NOTIFY
);
270 SDL_WINDOWEVENT_EXPOSED
:
273 SDL_WINDOWEVENT_MAXIMIZED
:
277 e_ResizeWindow(gScreenWidth
, gScreenHeight
);
281 if not gWinMaximized
then
283 gWinMaximized
:= True;
284 if g_debug_WinMsgs
then
286 g_Console_Add('Now maximized');
287 e_WriteLog('[DEBUG] WinMsgs: Now maximized', MSG_NOTIFY
);
292 SDL_WINDOWEVENT_RESTORED
:
296 e_ResizeWindow(gScreenWidth
, gScreenHeight
);
300 if gWinMaximized
then
301 gWinMaximized
:= False;
302 if g_debug_WinMsgs
then
304 g_Console_Add('Now restored');
305 e_WriteLog('[DEBUG] WinMsgs: Now restored', MSG_NOTIFY
);
309 SDL_WINDOWEVENT_FOCUS_GAINED
:
312 //e_WriteLog('window gained focus!', MSG_NOTIFY);
315 SDL_WINDOWEVENT_FOCUS_LOST
:
318 //e_WriteLog('window lost focus!', MSG_NOTIFY);
326 e_WriteLog('deactivating window', MSG_NOTIFY
);
327 e_EnableInput
:= False;
328 e_ClearInputBuffer();
330 if gMuteWhenInactive
then
332 //e_WriteLog('deactivating sounds', MSG_NOTIFY);
333 e_MuteChannels(True);
336 if g_debug_WinMsgs
then
338 g_Console_Add('Now inactive');
339 e_WriteLog('[DEBUG] WinMsgs: Now inactive', MSG_NOTIFY
);
345 else if wActivate
then
347 if not gWinActive
then
349 //e_WriteLog('activating window', MSG_NOTIFY);
350 e_EnableInput
:= True;
352 if gMuteWhenInactive
then
354 //e_WriteLog('activating sounds', MSG_NOTIFY);
355 e_MuteChannels(False);
358 if g_debug_WinMsgs
then
360 g_Console_Add('Now active');
361 e_WriteLog('[DEBUG] WinMsgs: Now active', MSG_NOTIFY
);
369 function EventHandler(ev
: TSDL_Event
): Boolean;
378 Result
:= WindowEventHandler(ev
.window
);
382 if gExit
<> EXIT_QUIT
then
384 if not wLoadingProgress
then
390 wLoadingQuit
:= True;
397 key
:= ev
.key
.keysym
.scancode
;
403 Utf8ToUnicode(@uc
, PChar(ev
.text.text), 1);
405 if (keychr
> 127) then
406 keychr
:= WCharToCP1251(keychr
);
407 CharPress(Chr(keychr
));
410 // other key presses and joysticks are handled in e_input
414 procedure SwapBuffers();
416 {$IFDEF HEADLESS}Exit
;{$ENDIF}
417 SDL_GL_SwapWindow(h_Wnd
);
420 procedure KillGLWindow();
422 if h_Wnd
<> nil then SDL_DestroyWindow(h_Wnd
);
423 if h_GL
<> nil then SDL_GL_DeleteContext(h_GL
);
426 //wWindowCreated := False;
429 function CreateGLWindow(Title
: PChar): Boolean;
435 gWinSizeX
:= gScreenWidth
;
436 gWinSizeY
:= gScreenHeight
;
439 e_WriteLog('Creating window', MSG_NOTIFY
);
441 if not g_Window_SetDisplay() then
444 e_WriteLog('Window creation error (resolution not supported?)', MSG_FATALERROR
);
449 h_Gl
:= SDL_GL_CreateContext(h_Wnd
);
450 if h_Gl
= nil then Exit
;
452 //wWindowCreated := True;
454 e_ResizeWindow(gScreenWidth
, gScreenHeight
);
461 // windoze sux; in headless mode `GetTickCount()` (and SDL) returns shit
462 function GetTimer(): Int64;
466 QueryPerformanceFrequency(F
);
467 QueryPerformanceCounter(C
);
468 Result
:= Round(C
/F
*1000{000});
471 function GetTimer(): Int64;
476 t
:= SDL_GetTicks() {* 1000}; // TODO: do we really need microseconds here? k8: NOPE!
477 if ticksOverflow
= -1 then
484 if lastTicks
> t
then
486 // overflow, increment overflow ;-)
487 ticksOverflow
:= ticksOverflow
+(Int64($ffffffff)+Int64(1));
488 tt
:= (Int64($ffffffff)+Int64(1))+Int64(t
);
489 t
:= Uint32(tt
-lastTicks
);
493 result
:= ticksOverflow
+Int64(t
);
497 procedure ResetTimer();
499 wNeedTimeReset
:= True;
502 procedure PushExitEvent();
506 ev
.type_
:= SDL_QUITEV
;
510 procedure ProcessLoading();
515 FillChar(ev
, SizeOf(ev
), 0);
516 //wNeedFree := False;
517 wLoadingProgress
:= True;
518 while SDL_PollEvent(@ev
) > 0 do
520 if (ev
.type_
= SDL_QUITEV
) then
525 if (ev
.type_
= SDL_QUITEV
) or (gExit
= EXIT_QUIT
) then
527 wLoadingProgress
:= False;
531 if not wMinimized
then
533 if g_Texture_Get('INTER', ID
) then
534 e_DrawSize(ID
, 0, 0, 0, False, False, gScreenWidth
, gScreenHeight
)
536 e_Clear(GL_COLOR_BUFFER_BIT
, 0, 0, 0);
546 if NetMode
= NET_SERVER
then
549 if (NetMode
= NET_CLIENT
) and (NetState
<> NET_STATE_AUTH
) then
550 g_Net_Client_UpdateWhileLoading
;
551 wLoadingProgress
:= False;
554 function ProcessMessage(): Boolean;
560 FillChar(ev
, SizeOf(ev
), 0);
562 while SDL_PollEvent(@ev
) > 0 do
564 Result
:= EventHandler(ev
);
565 if ev
.type_
= SDL_QUITEV
then exit
;
569 Time_Delta
:= Time
- Time_Old
;
573 if wNeedTimeReset
then
575 Time_Delta
:= 28{(27777 div 1000)};
576 wNeedTimeReset
:= False;
579 t
:= Time_Delta
div 28{(27777 div 1000)};
585 if NetMode
= NET_SERVER
then g_Net_Host_Update()
586 else if NetMode
= NET_CLIENT
then g_Net_Client_Update();
592 if NetMode
= NET_SERVER
then g_Net_Host_Update()
593 else if NetMode
= NET_CLIENT
then g_Net_Client_Update();
602 if gExit
= EXIT_QUIT
then
608 // Âðåìÿ ïðåäûäóùåãî îáíîâëåíèÿ:
611 Time_Old
:= Time
- (Time_Delta
mod 28{(27777 div 1000)});
612 if (not wMinimized
) then
625 procedure ReDrawWindow
;
631 procedure InitOpenGL(VSync
: Boolean);
635 {$IFDEF HEADLESS}Exit
;{$ENDIF}
636 if VSync
then v
:= 1 else v
:= 0;
637 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION
, 2);
638 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION
, 1);
639 SDL_GL_SetAttribute(SDL_GL_RED_SIZE
, 8);
640 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE
, 8);
641 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE
, 8);
642 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE
, 16);
643 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER
, 1);
644 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE
, 1); // lights; it is enough to have 1-bit stencil buffer for lighting
645 SDL_GL_SetSwapInterval(v
);
648 function glHasExtension (name
: AnsiString): Boolean;
653 extName
: ShortString;
656 if length(name
) = 0 then exit
;
657 exts
:= glGetString(GL_EXTENSIONS
);
658 if exts
= nil then exit
;
659 while (exts
[0] <> #0) and (exts
[0] = ' ') do Inc(exts
);
660 while exts
[0] <> #0 do
662 if gwin_dump_extensions
then
665 while (exts
[i
] <> #0) and (exts
[i
] <> ' ') do Inc(i
);
668 e_WriteLog('FUUUUUUUUUUUUU', MSG_WARNING
);
672 Move(exts
^, extName
[1], i
);
673 extName
[0] := Char(i
);
674 e_WriteLog(Format('EXT: %s', [extName
]), MSG_NOTIFY
);
678 for i
:= 0 to length(name
)-1 do
680 if exts
[i
] = #0 then begin found
:= false; break
; end;
681 if exts
[i
] <> name
[i
+1] then begin found
:= false; break
; end;
683 if found
and ((exts
[length(name
)] = #0) or (exts
[length(name
)] = ' ')) then begin result
:= true; exit
; end;
684 while (exts
[0] <> #0) and (exts
[0] <> ' ') do Inc(exts
);
685 while (exts
[0] <> #0) and (exts
[0] = ' ') do Inc(exts
);
689 function SDLMain(): Integer;
695 e_NoGraphics
:= True;
698 e_WriteLog('Initializing OpenGL', MSG_NOTIFY
);
701 e_WriteLog('Creating GL window', MSG_NOTIFY
);
702 if not CreateGLWindow(PChar(Format('Doom 2D: Forever %s', [GAME_VERSION
]))) then
708 {EnumDisplayModes();}
710 for idx
:= 1 to ParamCount
do
712 if ParamStr(idx
) = '--opengl-dump-exts' then gwin_dump_extensions
:= true;
715 SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE
, @ltmp
);
716 e_WriteLog(Format('stencil buffer size: %d', [ltmp
]), MSG_WARNING
);
718 gwin_has_stencil
:= (ltmp
> 0);
720 if not glHasExtension('GL_ARB_texture_non_power_of_two') then
722 e_WriteLog('Driver DID''T advertised NPOT textures support', MSG_WARNING
);
723 glLegacyNPOT
:= true;
727 e_WriteLog('Driver advertised NPOT textures support', MSG_NOTIFY
);
728 glLegacyNPOT
:= false;
730 gwin_dump_extensions
:= false;
733 Time_Old
:= GetTimer();
736 if ParamCount
> 0 then
737 g_Game_Process_Params();
740 if (not gGameOn
) and gAskLanguage
then
741 g_Menu_AskLanguage();
743 e_WriteLog('Entering the main loop', MSG_NOTIFY
);
745 while not ProcessMessage() do