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, version 3 of the License ONLY.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 {$INCLUDE ../shared/a_modes.inc}
22 (* --- Graphics --- *)
23 function sys_GetDisplayModes (bpp
: Integer): SSArray
;
24 function sys_SetDisplayMode (w
, h
, bpp
: Integer; fullscreen
, maximized
: Boolean): Boolean;
25 procedure sys_EnableVSync (yes
: Boolean);
26 procedure sys_Repaint
;
29 function sys_HandleInput (): Boolean;
30 procedure sys_RequestQuit
;
37 sys_CharPress
: procedure (ch
: AnsiChar) = nil;
38 sys_ScreenResize
: procedure (w
, h
: Integer) = nil;
44 e_log
, e_input
, e_sound
,
45 g_options
, g_console
, g_game
, g_basic
;
48 GameTitle
= 'Doom 2D: Forever (SDL 1.2, %s)';
54 JoystickHandle
: array [0..e_MaxJoys
- 1] of PSDL_Joystick
;
55 JoystickHatState
: array [0..e_MaxJoys
- 1, 0..e_MaxJoyHats
- 1, HAT_LEFT
..HAT_DOWN
] of Boolean;
56 JoystickZeroAxes
: array [0..e_MaxJoys
- 1, 0..e_MaxJoyAxes
- 1] of Integer;
58 (* --------- Graphics --------- *)
60 function GetTitle (): PChar;
63 info
:= g_GetBuildHash(false);
64 if info
= 'custom build' then
65 info
:= info
+ ' by ' + g_GetBuilderName() + ' ' + GAME_BUILDDATE
+ ' ' + GAME_BUILDTIME
;
66 result
:= PChar(Format(GameTitle
, [info
]))
69 function InitWindow (w
, h
, bpp
: Integer; fullScreen
: Boolean): Boolean;
72 e_LogWritefln('InitWindow %s %s %s %s', [w
, h
, bpp
, fullScreen
]);
74 SDL_GL_SetAttribute(SDL_GL_RED_SIZE
, 8);
75 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE
, 8);
76 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE
, 8);
77 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE
, 16);
78 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER
, 1);
79 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE
, 8); // lights; it is enough to have 1-bit stencil buffer for lighting, but...
81 if fullScreen
then flags
:= flags
or SDL_FULLSCREEN
;
82 if userResize
then flags
:= flags
or SDL_VIDEORESIZE
;
83 if (screen
= nil) or (SDL_VideoModeOk(w
, h
, bpp
, flags
) <> 0) then
85 SDL_FreeSurface(screen
);
86 screen
:= SDL_SetVideoMode(w
, h
, bpp
, flags
);
89 SDL_WM_SetCaption(GetTitle(), nil);
90 gFullScreen
:= fullscreen
;
91 gRC_FullScreen
:= fullscreen
;
92 if @sys_ScreenResize
<> nil then
93 sys_ScreenResize(w
, h
);
99 e_LogWritefln('SDL: video mode not supported', [])
103 procedure sys_Repaint
;
108 procedure sys_EnableVSync (yes
: Boolean);
113 function sys_GetDisplayModes (bpp
: Integer): SSArray
;
114 var m
: PPSDL_Rect
; f
: TSDL_PixelFormat
; i
, count
: Integer;
116 SetLength(result
, 0);
117 FillChar(f
, sizeof(f
), 0);
119 f
.BitsPerPixel
:= bpp
;
120 f
.BytesPerPixel
:= (bpp
+ 7) div 8;
121 m
:= SDL_ListModes(@f
, SDL_OPENGL
or SDL_FULLSCREEN
);
122 if (m
<> NIL) and (UIntPtr(m
) <> UIntPtr(-1)) then
125 while m
[count
] <> nil do inc(count
);
126 SetLength(result
, count
);
127 for i
:= 0 to count
- 1 do
128 result
[i
] := IntToStr(m
[i
].w
) + 'x' + IntToStr(m
[i
].h
);
132 function sys_SetDisplayMode (w
, h
, bpp
: Integer; fullscreen
, maximized
: Boolean): Boolean;
134 result
:= InitWindow(w
, h
, bpp
, fullscreen
)
137 (* --------- Joystick --------- *)
139 procedure HandleJoyButton (var ev
: TSDL_JoyButtonEvent
);
140 var down
: Boolean; key
: Integer;
142 if (ev
.which
< e_MaxJoys
) and (ev
.button
< e_MaxJoyBtns
) then
144 key
:= e_JoyButtonToKey(ev
.which
, ev
.button
);
145 down
:= ev
.type_
= SDL_JOYBUTTONDOWN
;
147 e_LogWritefln('Input Debug: jbutton, joy=%s, button=%s, keycode=%s, press=%s', [ev
.which
, ev
.button
, key
, down
]);
148 e_KeyUpDown(key
, down
);
149 g_Console_ProcessBind(key
, down
)
155 down
:= ev
.type_
= SDL_JOYBUTTONDOWN
;
156 e_LogWritefln('Input Debug: NOT IN RANGE! jbutton, joy=%s, button=%s, press=%s', [ev
.which
, ev
.button
, down
])
161 procedure HandleJoyAxis (var ev
: TSDL_JoyAxisEvent
);
162 var key
, minuskey
: Integer;
164 if (ev
.which
< e_MaxJoys
) and (ev
.axis
< e_MaxJoyAxes
) then
166 key
:= e_JoyAxisToKey(ev
.which
, ev
.axis
, AX_PLUS
);
167 minuskey
:= e_JoyAxisToKey(ev
.which
, ev
.axis
, AX_MINUS
);
170 e_LogWritefln('Input Debug: jaxis, joy=%s, axis=%s, value=%s, zeroaxes=%s, deadzone=%s', [ev
.which
, ev
.axis
, ev
.value
, JoystickZeroAxes
[ev
.which
, ev
.axis
], e_JoystickDeadzones
[ev
.which
]]);
172 if ev
.value
< JoystickZeroAxes
[ev
.which
, ev
.axis
] - e_JoystickDeadzones
[ev
.which
] then
174 if (e_KeyPressed(key
)) then
176 e_KeyUpDown(key
, False);
177 g_Console_ProcessBind(key
, False)
179 e_KeyUpDown(minuskey
, True);
180 g_Console_ProcessBind(minuskey
, True)
182 else if ev
.value
> JoystickZeroAxes
[ev
.which
, ev
.axis
] + e_JoystickDeadzones
[ev
.which
] then
184 if (e_KeyPressed(minuskey
)) then
186 e_KeyUpDown(minuskey
, False);
187 g_Console_ProcessBind(minuskey
, False)
189 e_KeyUpDown(key
, True);
190 g_Console_ProcessBind(key
, True)
194 if (e_KeyPressed(minuskey
)) then
196 e_KeyUpDown(minuskey
, False);
197 g_Console_ProcessBind(minuskey
, False)
199 if (e_KeyPressed(key
)) then
201 e_KeyUpDown(key
, False);
202 g_Console_ProcessBind(key
, False)
209 e_LogWritefln('Input Debug: NOT IN RANGE! jaxis, joy=%s, axis=%s, value=%s, zeroaxes=%s, deadzone=%s', [ev
.which
, ev
.axis
, ev
.value
, JoystickZeroAxes
[ev
.which
, ev
.axis
], e_JoystickDeadzones
[ev
.which
]])
213 procedure HandleJoyHat (var ev
: TSDL_JoyHatEvent
);
217 hat
: array [HAT_LEFT
..HAT_DOWN
] of Boolean;
219 if (ev
.which
< e_MaxJoys
) and (ev
.hat
< e_MaxJoyHats
) then
222 e_LogWritefln('Input Debug: jhat, joy=%s, hat=%s, value=%s', [ev
.which
, ev
.hat
, ev
.value
]);
223 hat
[HAT_UP
] := LongBool(ev
.value
and SDL_HAT_UP
);
224 hat
[HAT_DOWN
] := LongBool(ev
.value
and SDL_HAT_DOWN
);
225 hat
[HAT_LEFT
] := LongBool(ev
.value
and SDL_HAT_LEFT
);
226 hat
[HAT_RIGHT
] := LongBool(ev
.value
and SDL_HAT_RIGHT
);
227 for i
:= HAT_LEFT
to HAT_DOWN
do
229 if JoystickHatState
[ev
.which
, ev
.hat
, i
] <> hat
[i
] then
232 key
:= e_JoyHatToKey(ev
.which
, ev
.hat
, i
);
233 e_KeyUpDown(key
, down
);
234 g_Console_ProcessBind(key
, down
)
237 JoystickHatState
[ev
.which
, ev
.hat
] := hat
242 e_LogWritefln('Input Debug: NOT IN RANGE! jhat, joy=%s, hat=%s, value=%s', [ev
.which
, ev
.hat
, ev
.value
])
246 procedure AddJoystick (which
: Integer);
249 assert(which
< e_MaxJoys
);
250 JoystickHandle
[which
] := SDL_JoystickOpen(which
);
251 if JoystickHandle
[which
] <> nil then
253 e_LogWritefln('Added Joystick %s', [which
]);
254 e_JoystickAvailable
[which
] := True;
255 for i
:= 0 to Min(SDL_JoystickNumAxes(JoystickHandle
[which
]), e_MaxJoyAxes
) - 1 do
256 JoystickZeroAxes
[which
, i
] := SDL_JoystickGetAxis(JoystickHandle
[which
], i
)
260 e_LogWritefln('Failed to open Joystick %s', [which
])
264 procedure RemoveJoystick (which
: Integer);
266 assert(which
< e_MaxJoys
);
267 e_LogWritefln('Remove Joystick %s', [which
]);
268 e_JoystickAvailable
[which
] := False;
269 if JoystickHandle
[which
] <> nil then
270 SDL_JoystickClose(JoystickHandle
[which
]);
271 JoystickHandle
[which
] := nil
274 (* --------- Input --------- *)
276 function Key2Stub (key
: Integer): Integer;
280 SDLK_ESCAPE
: x
:= IK_ESCAPE
;
281 SDLK_RETURN
: x
:= IK_RETURN
;
282 SDLK_KP_ENTER
: x
:= IK_KPRETURN
;
283 SDLK_KP0
: x
:= IK_KPINSERT
;
285 SDLK_KP8
: x
:= IK_KPUP
;
286 SDLK_DOWN
: x
:= IK_DOWN
;
287 SDLK_KP2
: x
:= IK_KPDOWN
;
288 SDLK_LEFT
: x
:= IK_LEFT
;
289 SDLK_KP4
: x
:= IK_KPLEFT
;
290 SDLK_RIGHT
: x
:= IK_RIGHT
;
291 SDLK_KP6
: x
:= IK_KPRIGHT
;
292 SDLK_DELETE
: x
:= IK_DELETE
;
293 SDLK_HOME
: x
:= IK_HOME
;
294 SDLK_KP7
: x
:= IK_KPHOME
;
295 SDLK_INSERT
: x
:= IK_INSERT
;
296 SDLK_SPACE
: x
:= IK_SPACE
;
297 SDLK_LSHIFT
: x
:= IK_SHIFT
;
298 SDLK_LALT
: x
:= IK_ALT
;
299 SDLK_TAB
: x
:= IK_TAB
;
300 SDLK_PAGEUP
: x
:= IK_PAGEUP
;
301 SDLK_KP9
: x
:= IK_KPPAGEUP
;
302 SDLK_PAGEDOWN
: x
:= IK_PAGEDN
;
303 SDLK_KP3
: x
:= IK_KPPAGEDN
;
304 SDLK_KP5
: x
:= IK_KP5
;
305 SDLK_NUMLOCK
: x
:= IK_NUMLOCK
;
306 SDLK_KP_DIVIDE
: x
:= IK_KPDIVIDE
;
307 SDLK_KP_MULTIPLY
: x
:= IK_KPMULTIPLE
;
308 SDLK_KP_MINUS
: x
:= IK_KPMINUS
;
309 SDLK_KP_PLUS
: x
:= IK_KPPLUS
;
310 SDLK_KP_PERIOD
: x
:= IK_KPDOT
;
311 SDLK_CAPSLOCK
: x
:= IK_CAPSLOCK
;
312 SDLK_RSHIFT
: x
:= IK_RSHIFT
;
313 SDLK_LCTRL
: x
:= IK_CTRL
;
314 SDLK_RCTRL
: x
:= IK_RCTRL
;
315 SDLK_RALT
: x
:= IK_RALT
;
316 SDLK_LSUPER
: x
:= IK_WIN
;
317 SDLK_RSUPER
: x
:= IK_RWIN
;
318 SDLK_MENU
: x
:= IK_MENU
;
319 SDLK_PRINT
: x
:= IK_PRINTSCR
;
320 SDLK_SCROLLOCK
: x
:= IK_SCROLLLOCK
;
321 SDLK_LEFTBRACKET
: x
:= IK_LBRACKET
;
322 SDLK_RIGHTBRACKET
: x
:= IK_RBRACKET
;
323 SDLK_SEMICOLON
: x
:= IK_SEMICOLON
;
324 SDLK_QUOTE
: x
:= IK_QUOTE
;
325 SDLK_BACKSLASH
: x
:= IK_BACKSLASH
;
326 SDLK_SLASH
: x
:= IK_SLASH
;
327 SDLK_COMMA
: x
:= IK_COMMA
;
328 SDLK_PERIOD
: x
:= IK_DOT
;
329 SDLK_EQUALS
: x
:= IK_EQUALS
;
349 SDLK_F10
: x
:= IK_F10
;
350 SDLK_F11
: x
:= IK_F11
;
351 SDLK_F12
: x
:= IK_F12
;
352 SDLK_END
: x
:= IK_END
;
353 SDLK_KP1
: x
:= IK_KPEND
;
354 SDLK_BACKSPACE
: x
:= IK_BACKSPACE
;
355 SDLK_BACKQUOTE
: x
:= IK_BACKQUOTE
;
356 SDLK_PAUSE
: x
:= IK_PAUSE
;
357 SDLK_A
..SDLK_Z
: x
:= IK_A
+ (key
- SDLK_A
);
358 SDLK_MINUS
: x
:= IK_MINUS
;
359 SDLK_RMETA
: x
:= IK_RMETA
;
360 SDLK_LMETA
: x
:= IK_LMETA
;
367 procedure HandleKeyboard (var ev
: TSDL_KeyboardEvent
);
368 var down
, repeated
: Boolean; key
: Integer; ch
: Char;
370 key
:= Key2Stub(ev
.keysym
.sym
);
371 down
:= (ev
.type_
= SDL_KEYDOWN
);
372 repeated
:= down
and e_KeyPressed(key
);
373 ch
:= wchar2win(WideChar(ev
.keysym
.unicode
));
375 e_LogWritefln('Input Debug: keysym, down=%s, sym=%s, state=%s, unicode=%s, stubsym=%s, cp1251=%s', [down
, ev
.keysym
.sym
, ev
.state
, ev
.keysym
.unicode
, key
, Ord(ch
)]);
378 e_KeyUpDown(key
, down
);
379 g_Console_ProcessBind(key
, down
);
383 g_Console_ProcessBindRepeat(key
)
385 if @sys_CharPress
<> nil then
386 if down
and IsValid1251(ev
.keysym
.unicode
) and IsPrintable1251(ch
) then
390 procedure HandleResize (var ev
: TSDL_ResizeEvent
);
393 e_LogWritefln('Input Debug: SDL_VIDEORESIZE %s %s', [ev
.w
, ev
.h
]);
394 if (modeResize
= 1) and (@sys_ScreenResize
<> nil) then
395 sys_ScreenResize(ev
.w
, ev
.h
)
396 else if modeResize
> 1 then
397 InitWindow(ev
.w
, ev
.h
, gBPP
, gFullscreen
)
400 function sys_HandleInput (): Boolean;
404 while SDL_PollEvent(@ev
) <> 0 do
407 SDL_QUITEV
: result
:= true;
408 SDL_VIDEORESIZE
: HandleResize(ev
.resize
);
409 SDL_KEYUP
, SDL_KEYDOWN
: HandleKeyboard(ev
.key
);
410 SDL_JOYBUTTONDOWN
, SDL_JOYBUTTONUP
: HandleJoyButton(ev
.jbutton
);
411 SDL_JOYAXISMOTION
: HandleJoyAxis(ev
.jaxis
);
412 SDL_JOYHATMOTION
: HandleJoyHat(ev
.jhat
);
413 SDL_VIDEOEXPOSE
: sys_Repaint
;
414 SDL_ACTIVEEVENT
: e_MuteChannels((ev
.active
.gain
= 0) and gMuteWhenInactive
);
419 procedure sys_RequestQuit
;
422 ev
.quit
.type_
:= SDL_QUITEV
;
426 (* --------- Init --------- *)
429 var flags
: Uint32
; i
: Integer;
431 e_WriteLog('Init SDL', TMsgType
.Notify
);
432 flags
:= SDL_INIT_VIDEO
or SDL_INIT_AUDIO
or
433 SDL_INIT_TIMER
or SDL_INIT_JOYSTICK
434 (*or SDL_INIT_NOPARACHUTE*);
435 if SDL_Init(flags
) <> 0 then
436 raise Exception
.Create('SDL: Init failed: ' + SDL_GetError
);
437 SDL_EnableUNICODE(1);
438 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY
, SDL_DEFAULT_REPEAT_INTERVAL
);
439 for i
:= 0 to e_MaxJoys
- 1 do
446 e_WriteLog('Releasing SDL', TMsgType
.Notify
);
447 for i
:= 0 to e_MaxJoys
- 1 do
449 if screen
<> nil then
450 SDL_FreeSurface(screen
);
455 (* window resize are broken both on linux and osx, so disabled by default *)
456 conRegVar('sdl_allow_resize', @userResize
, 'allow to resize window by user', 'allow to resize window by user');
457 conRegVar('sdl_resize_action', @modeResize
, 'set window resize mode (0: ignore, 1: change, 2: reset)', '');