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 {$INCLUDE ../shared/a_modes.inc}
23 function sys_GetTicks (): Int64;
24 procedure sys_Delay (ms
: Integer);
26 (* --- Graphics --- *)
27 function sys_GetDisplayModes (bpp
: Integer): SSArray
;
28 function sys_SetDisplayMode (w
, h
, bpp
: Integer; fullscreen
, maximized
: Boolean): Boolean;
29 procedure sys_EnableVSync (yes
: Boolean);
30 procedure sys_Repaint
;
33 function sys_HandleInput (): Boolean;
34 procedure sys_RequestQuit
;
41 sys_CharPress
: procedure (ch
: AnsiChar) = nil;
42 sys_ScreenResize
: procedure (w
, h
: Integer) = nil;
47 SysUtils
, SDL2
, Math
, ctypes
,
48 e_log
, e_input
, e_sound
,
49 {$IFDEF ENABLE_HOLMES}
50 g_holmes
, sdlcarcass
, fui_ctls
,
52 g_touch
, g_options
, g_console
, g_game
, g_menu
, g_gui
, g_basic
;
55 GameTitle
= 'Doom 2D: Forever (SDL 2, %s)';
59 context
: TSDL_GLContext
;
60 display
, wx
, wy
: Integer;
62 JoystickHandle
: array [0..e_MaxJoys
- 1] of PSDL_Joystick
;
63 JoystickHatState
: array [0..e_MaxJoys
- 1, 0..e_MaxJoyHats
- 1, HAT_LEFT
..HAT_DOWN
] of Boolean;
64 JoystickZeroAxes
: array [0..e_MaxJoys
- 1, 0..e_MaxJoyAxes
- 1] of Integer;
66 (* --------- Utils --------- *)
68 function sys_GetTicks (): Int64;
70 result
:= SDL_GetTicks()
73 procedure sys_Delay (ms
: Integer);
78 (* --------- Graphics --------- *)
80 function GetTitle (): PChar;
83 info
:= g_GetBuildHash(false);
84 if info
= 'custom build' then
85 info
:= info
+ ' by ' + g_GetBuilderName() + ' ' + GAME_BUILDDATE
+ ' ' + GAME_BUILDTIME
;
86 result
:= PChar(Format(GameTitle
, [info
]))
89 function InitWindow (w
, h
, bpp
: Integer; fullScreen
, maximized
: Boolean): Boolean;
90 var flags
: UInt32
; x
, y
: cint
;
92 // note: on window close make: if assigned(oglDeinitCB) then oglDeinitCB;
93 e_LogWritefln('InitWindow %s %s %s %s', [w
, h
, bpp
, fullScreen
]);
98 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION
, 1);
99 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION
, 1);
100 SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK
, SDL_GL_CONTEXT_PROFILE_ES
);
102 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION
, 2);
103 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION
, 1);
104 SDL_GL_SetAttribute(SDL_GL_RED_SIZE
, 8);
105 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE
, 8);
106 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE
, 8);
107 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE
, 16);
108 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER
, 1);
109 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE
, 8); // lights; it is enough to have 1-bit stencil buffer for lighting, but...
111 flags
:= SDL_WINDOW_OPENGL
or SDL_WINDOW_RESIZABLE
;
112 if fullScreen
then flags
:= flags
or SDL_WINDOW_FULLSCREEN
;
113 if maximized
then flags
:= flags
or SDL_WINDOW_MAXIMIZED
;
116 x
:= SDL_WINDOWPOS_CENTERED
;
117 y
:= SDL_WINDOWPOS_CENTERED
124 window
:= SDL_CreateWindow(GetTitle(), x
, y
, w
, h
, flags
);
125 if window
<> nil then
127 context
:= SDL_GL_CreateContext(window
);
128 if context
<> nil then
130 if (fullscreen
= false) and (maximized
= false) and (wc
= false) then
132 SDL_GetWindowPosition(window
, @x
, @y
);
135 gFullScreen
:= fullscreen
;
136 gWinMaximized
:= maximized
;
137 gRC_FullScreen
:= fullscreen
;
138 gRC_Maximized
:= maximized
;
139 if @sys_ScreenResize
<> nil then
140 sys_ScreenResize(w
, h
);
145 // SDL_DestroyWindow(window);
146 e_LogWritefln('SDL: unable to create OpenGL context: %s', [SDL_GetError
])
151 e_LogWritefln('SDL: unable to create window: %s', [SDL_GetError
])
156 if fullScreen
then flags
:= SDL_WINDOW_FULLSCREEN
else flags
:= 0;
157 SDL_SetWindowFullscreen(window
, flags
);
158 SDL_SetWindowSize(window
, w
, h
);
159 if maximized
then SDL_MaximizeWindow(window
);
160 // always reset to center when changing fullscreen->windowed for safety purposes
161 if wc
or (gFullscreen
and not fullscreen
) or (gWinMaximized
and not maximized
) then
163 x
:= SDL_WINDOWPOS_CENTERED
;
164 y
:= SDL_WINDOWPOS_CENTERED
171 SDL_SetWindowPosition(window
, x
, y
);
172 if (fullscreen
= false) and (maximized
= false) and (wc
= false) then
174 SDL_GetWindowPosition(window
, @x
, @y
);
177 gFullScreen
:= fullscreen
;
178 gWinMaximized
:= maximized
;
179 gRC_FullScreen
:= fullscreen
;
180 gRC_Maximized
:= maximized
;
181 if @sys_ScreenResize
<> nil then
182 sys_ScreenResize(w
, h
);
187 procedure sys_Repaint
;
189 SDL_GL_SwapWindow(window
)
192 procedure sys_EnableVSync (yes
: Boolean);
195 SDL_GL_SetSwapInterval(1)
197 SDL_GL_SetSwapInterval(0)
200 function sys_GetDisplayModes (bpp
: Integer): SSArray
;
201 var i
, count
, num
, pw
, ph
: Integer; m
: TSDL_DisplayMode
;
204 num
:= SDL_GetNumDisplayModes(display
);
206 e_LogWritefln('SDL: unable to get numer of available display modes: %s', [SDL_GetError
]);
209 e_LogWritefln('Video modes for display %s:', [display
]);
210 SetLength(result
, num
);
211 i
:= 0; count
:= 0; pw
:= 0; ph
:= 0;
214 SDL_GetDisplayMode(display
, i
, @m
);
215 if ((pw
<> m
.w
) or (ph
<> m
.h
)) then
217 e_LogWritefln('* %sx%sx%s@%s', [m
.w
, m
.h
, SDL_BITSPERPIXEL(m
.format
), m
.refresh_rate
]);
218 pw
:= m
.w
; ph
:= m
.h
;
219 result
[count
] := IntToStr(m
.w
) + 'x' + IntToStr(m
.h
);
224 e_LogWritefln('- %sx%sx%s@%s', [m
.w
, m
.h
, SDL_BITSPERPIXEL(m
.format
), m
.refresh_rate
]);
228 SetLength(result
, count
)
232 function sys_SetDisplayMode (w
, h
, bpp
: Integer; fullScreen
, maximized
: Boolean): Boolean;
234 result
:= InitWindow(w
, h
, bpp
, fullScreen
, maximized
)
237 (* --------- Joystick --------- *)
239 procedure HandleJoyButton (var ev
: TSDL_JoyButtonEvent
);
240 var down
: Boolean; key
: Integer;
242 if (ev
.which
< e_MaxJoys
) and (ev
.button
< e_MaxJoyBtns
) then
244 key
:= e_JoyButtonToKey(ev
.which
, ev
.button
);
245 down
:= ev
.type_
= SDL_JOYBUTTONDOWN
;
247 e_LogWritefln('Input Debug: jbutton, joy=%s, button=%s, keycode=%s, press=%s', [ev
.which
, ev
.button
, key
, down
]);
248 e_KeyUpDown(key
, down
);
249 g_Console_ProcessBind(key
, down
)
255 down
:= ev
.type_
= SDL_JOYBUTTONDOWN
;
256 e_LogWritefln('Input Debug: NOT IN RANGE! jbutton, joy=%s, button=%s, press=%s', [ev
.which
, ev
.button
, down
])
261 procedure HandleJoyAxis (var ev
: TSDL_JoyAxisEvent
);
262 var key
, minuskey
: Integer;
264 if (ev
.which
< e_MaxJoys
) and (ev
.axis
< e_MaxJoyAxes
) then
266 key
:= e_JoyAxisToKey(ev
.which
, ev
.axis
, AX_PLUS
);
267 minuskey
:= e_JoyAxisToKey(ev
.which
, ev
.axis
, AX_MINUS
);
270 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
]]);
272 if ev
.value
< JoystickZeroAxes
[ev
.which
, ev
.axis
] - e_JoystickDeadzones
[ev
.which
] then
274 if (e_KeyPressed(key
)) then
276 e_KeyUpDown(key
, False);
277 g_Console_ProcessBind(key
, False)
279 e_KeyUpDown(minuskey
, True);
280 g_Console_ProcessBind(minuskey
, True)
282 else if ev
.value
> JoystickZeroAxes
[ev
.which
, ev
.axis
] + e_JoystickDeadzones
[ev
.which
] then
284 if (e_KeyPressed(minuskey
)) then
286 e_KeyUpDown(minuskey
, False);
287 g_Console_ProcessBind(minuskey
, False)
289 e_KeyUpDown(key
, True);
290 g_Console_ProcessBind(key
, True)
294 if (e_KeyPressed(minuskey
)) then
296 e_KeyUpDown(minuskey
, False);
297 g_Console_ProcessBind(minuskey
, False)
299 if (e_KeyPressed(key
)) then
301 e_KeyUpDown(key
, False);
302 g_Console_ProcessBind(key
, False)
309 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
]])
313 procedure HandleJoyHat (var ev
: TSDL_JoyHatEvent
);
317 hat
: array [HAT_LEFT
..HAT_DOWN
] of Boolean;
319 if (ev
.which
< e_MaxJoys
) and (ev
.hat
< e_MaxJoyHats
) then
322 e_LogWritefln('Input Debug: jhat, joy=%s, hat=%s, value=%s', [ev
.which
, ev
.hat
, ev
.value
]);
323 hat
[HAT_UP
] := LongBool(ev
.value
and SDL_HAT_UP
);
324 hat
[HAT_DOWN
] := LongBool(ev
.value
and SDL_HAT_DOWN
);
325 hat
[HAT_LEFT
] := LongBool(ev
.value
and SDL_HAT_LEFT
);
326 hat
[HAT_RIGHT
] := LongBool(ev
.value
and SDL_HAT_RIGHT
);
327 for i
:= HAT_LEFT
to HAT_DOWN
do
329 if JoystickHatState
[ev
.which
, ev
.hat
, i
] <> hat
[i
] then
332 key
:= e_JoyHatToKey(ev
.which
, ev
.hat
, i
);
333 e_KeyUpDown(key
, down
);
334 g_Console_ProcessBind(key
, down
)
337 JoystickHatState
[ev
.which
, ev
.hat
] := hat
342 e_LogWritefln('Input Debug: NOT IN RANGE! jhat, joy=%s, hat=%s, value=%s', [ev
.which
, ev
.hat
, ev
.value
])
346 procedure HandleJoyAdd (var ev
: TSDL_JoyDeviceEvent
);
349 if (ev
.which
< e_MaxJoys
) then
351 JoystickHandle
[ev
.which
] := SDL_JoystickOpen(ev
.which
);
352 if JoystickHandle
[ev
.which
] <> nil then
354 e_LogWritefln('Added Joystick %s', [ev
.which
]);
355 e_JoystickAvailable
[ev
.which
] := True;
356 for i
:= 0 to Min(SDL_JoystickNumAxes(JoystickHandle
[ev
.which
]), e_MaxJoyAxes
) - 1 do
357 JoystickZeroAxes
[ev
.which
, i
] := SDL_JoystickGetAxis(JoystickHandle
[ev
.which
], i
)
361 e_LogWritefln('Warning! Failed to open Joystick %s', [ev
.which
])
366 e_LogWritefln('Warning! Added Joystick %s, but we support only <= %s', [ev
.which
, e_MaxJoys
])
370 procedure HandleJoyRemove (var ev
: TSDL_JoyDeviceEvent
);
372 e_LogWritefln('Removed Joystick %s', [ev
.which
]);
373 if (ev
.which
< e_MaxJoys
) then
375 e_JoystickAvailable
[ev
.which
] := False;
376 if JoystickHandle
[ev
.which
] <> nil then
377 SDL_JoystickClose(JoystickHandle
[ev
.which
]);
378 JoystickHandle
[ev
.which
] := nil
382 (* --------- Input --------- *)
384 function HandleWindow (var ev
: TSDL_WindowEvent
): Boolean;
388 e_LogWritefln('Window Event: event = %s, data1 = %s, data2 = %s', [ev
.event
, ev
.data1
, ev
.data2
]);
390 SDL_WINDOWEVENT_RESIZED
:
391 if @sys_ScreenResize
<> nil then
392 sys_ScreenResize(ev
.data1
, ev
.data2
);
393 SDL_WINDOWEVENT_EXPOSED
: sys_Repaint
;
394 SDL_WINDOWEVENT_CLOSE
: result
:= true;
395 SDL_WINDOWEVENT_MOVED
:
400 SDL_WINDOWEVENT_FOCUS_LOST
, SDL_WINDOWEVENT_MINIMIZED
:
403 if gMuteWhenInactive
then
404 e_MuteChannels(true);
405 {$IFDEF ENABLE_HOLMES}
406 if assigned(winBlurCB
) then winBlurCB
;
409 SDL_WINDOWEVENT_FOCUS_GAINED
, SDL_WINDOWEVENT_MAXIMIZED
, SDL_WINDOWEVENT_RESTORED
:
411 if ev
.event
= SDL_WINDOWEVENT_MAXIMIZED
then
413 gWinMaximized
:= true;
414 gRC_Maximized
:= true
416 else if ev
.event
= SDL_WINDOWEVENT_RESTORED
then
418 gWinMaximized
:= false;
419 gRC_Maximized
:= false
421 e_MuteChannels(false);
422 {$IFDEF ENABLE_HOLMES}
423 if assigned(winFocusCB
) then winFocusCB
;
429 procedure HandleKeyboard (var ev
: TSDL_KeyboardEvent
);
430 var down
: Boolean; key
: Integer;
432 key
:= ev
.keysym
.scancode
;
433 down
:= (ev
.type_
= SDL_KEYDOWN
);
434 if key
= SDL_SCANCODE_AC_BACK
then
435 key
:= SDL_SCANCODE_ESCAPE
;
436 {$IFDEF ENABLE_HOLMES}
437 if fuiOnSDLEvent(PSDL_Event(@ev
)^) then
439 // event eaten, but...
440 if not down
then e_KeyUpDown(key
, false);
444 if ev
._repeat
= 0 then
447 e_LogWritefln('Input Debug: keysym, press=%s, scancode=%s', [down
, key
]);
448 e_KeyUpDown(key
, down
);
449 g_Console_ProcessBind(key
, down
);
454 e_LogWritefln('Input Debug: keyrep, scancode=%s', [key
]);
455 g_Console_ProcessBindRepeat(key
);
459 procedure HandleTextInput (var ev
: TSDL_TextInputEvent
);
460 var ch
: UnicodeChar
; sch
: AnsiChar;
462 Utf8ToUnicode(@ch
, PChar(ev
.text), 1);
463 sch
:= AnsiChar(wchar2win(ch
));
465 e_LogWritefln('Input Debug: text, text="%s", ch = %s, sch = %s', [ev
.text, Ord(ch
), Ord(sch
)]);
466 if @sys_CharPress
<> nil then
467 if IsValid1251(Word(ch
)) and IsPrintable1251(ch
) then
471 function sys_HandleInput (): Boolean;
475 ZeroMemory(@ev
, sizeof(ev
));
476 while SDL_PollEvent(@ev
) <> 0 do
479 SDL_QUITEV
: result
:= true;
480 SDL_WINDOWEVENT
: result
:= HandleWindow(ev
.window
);
481 SDL_KEYUP
, SDL_KEYDOWN
: HandleKeyboard(ev
.key
);
482 SDL_JOYBUTTONDOWN
, SDL_JOYBUTTONUP
: HandleJoyButton(ev
.jbutton
);
483 SDL_JOYAXISMOTION
: HandleJoyAxis(ev
.jaxis
);
484 SDL_JOYHATMOTION
: HandleJoyHat(ev
.jhat
);
485 SDL_JOYDEVICEADDED
: HandleJoyAdd(ev
.jdevice
);
486 SDL_JOYDEVICEREMOVED
: HandleJoyRemove(ev
.jdevice
);
487 SDL_TEXTINPUT
: HandleTextInput(ev
.text);
488 SDL_FINGERMOTION
, SDL_FINGERDOWN
, SDL_FINGERUP
: g_Touch_HandleEvent(ev
.tfinger
);
489 {$IFDEF ENABLE_HOLMES}
490 SDL_MOUSEBUTTONDOWN
, SDL_MOUSEBUTTONUP
, SDL_MOUSEWHEEL
, SDL_MOUSEMOTION
: fuiOnSDLEvent(ev
);
496 procedure sys_RequestQuit
;
499 ev
.type_
:= SDL_QUITEV
;
503 (* --------- Init --------- *)
508 e_WriteLog('Init SDL2', TMsgType
.Notify
);
510 {$IFDEF USE_SDLMIXER}
511 flags
:= SDL_INIT_TIMER
or SDL_INIT_AUDIO
or $00004000;
513 flags
:= SDL_INIT_TIMER
or $00004000;
516 flags
:= SDL_INIT_TIMER
or SDL_INIT_VIDEO
;
518 SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK
, '0');
519 if SDL_Init(flags
) <> 0 then
520 raise Exception
.Create('SDL: Init failed: ' + SDL_GetError
);
522 if SDL_InitSubSystem(SDL_INIT_JOYSTICK
) <> 0 then
523 e_LogWritefln('SDL: Init subsystem failed: %s', [SDL_GetError()]);
525 SDL_ShowCursor(SDL_DISABLE
);
530 e_WriteLog('Releasing SDL2', TMsgType
.Notify
);
531 if context
<> nil then
533 SDL_GL_DeleteContext(context
);
536 if window
<> nil then
538 SDL_DestroyWindow(window
);
545 conRegVar('sdl2_display_index', @display
, 'use display index as base', '');
546 conRegVar('sdl2_window_x', @wx
, 'window position x', '');
547 conRegVar('sdl2_window_y', @wy
, 'window position y', '');
548 conRegVar('sdl2_window_center', @wc
, 'force window creation at center', '');
550 wx
:= SDL_WINDOWPOS_CENTERED
;
551 wy
:= SDL_WINDOWPOS_CENTERED
;