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 {$INCLUDE ../shared/a_modes.inc}
23 function sys_GetTicks (): Int64;
24 procedure sys_Delay (ms
: Integer);
26 (* --- Graphics --- *)
27 function sys_GetDisplayModes (bpp
: Integer): SSArray
;
28 function sys_SetDisplayMode (w
, h
, bpp
: Integer; fullscreen
, maximized
: Boolean): Boolean;
29 procedure sys_EnableVSync (yes
: Boolean);
30 procedure sys_Repaint
;
33 function sys_HandleInput (): Boolean;
34 procedure sys_RequestQuit
;
41 sys_CharPress
: procedure (ch
: AnsiChar) = nil;
46 SysUtils
, SDL2
, Math
, ctypes
,
47 e_log
, r_graphics
, e_input
, e_sound
,
48 {$INCLUDE ../nogl/noGLuses.inc}
49 {$IFDEF ENABLE_HOLMES}
50 g_holmes
, sdlcarcass
, fui_ctls
,
52 g_touch
, g_options
, g_console
, g_game
, g_menu
, g_gui
, g_basic
;
55 GameTitle
= 'Doom 2D: Forever (SDL 2, %s)';
59 context
: TSDL_GLContext
;
60 display
, wx
, wy
: Integer;
62 JoystickHandle
: array [0..e_MaxJoys
- 1] of PSDL_Joystick
;
63 JoystickHatState
: array [0..e_MaxJoys
- 1, 0..e_MaxJoyHats
- 1, HAT_LEFT
..HAT_DOWN
] of Boolean;
64 JoystickZeroAxes
: array [0..e_MaxJoys
- 1, 0..e_MaxJoyAxes
- 1] of Integer;
66 (* --------- Utils --------- *)
68 function sys_GetTicks (): Int64;
70 result
:= SDL_GetTicks()
73 procedure sys_Delay (ms
: Integer);
78 (* --------- Graphics --------- *)
80 function LoadGL
: Boolean;
86 if glRenderToFBO
and (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) then
88 e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering');
89 glRenderToFBO
:= false;
92 if glRenderToFBO
and (not Load_GL_ARB_framebuffer_object
) then
94 e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering');
95 glRenderToFBO
:= false;
98 if SDL_GL_GetAttribute(SDL_GL_STENCIL_SIZE
, @ltmp
) = 0 then
100 e_LogWritefln('stencil buffer size: %s', [ltmp
]);
101 gwin_has_stencil
:= (ltmp
> 0);
112 procedure UpdateSize (w
, h
: Integer);
118 if glRenderToFBO
then
120 // store real window size in gWinSize, downscale resolution now
121 w
:= round(w
/ r_pixel_scale
);
122 h
:= round(h
/ r_pixel_scale
);
123 if not e_ResizeFramebuffer(w
, h
) then
125 e_LogWriteln('GL: could not create framebuffer, falling back to --no-fbo');
126 glRenderToFBO
:= False;
133 {$IFDEF ENABLE_HOLMES}
137 e_ResizeWindow(w
, h
);
139 g_Game_SetupScreenSize
;
141 (* This will fix menu reset on keyboard showing *)
145 {$IFDEF ENABLE_HOLMES}
146 if assigned(oglInitCB
) then oglInitCB
;
150 function GetTitle (): AnsiString;
151 var info
: AnsiString;
153 info
:= g_GetBuildHash(false);
154 if info
= 'custom build' then
155 info
:= info
+ ' by ' + g_GetBuilderName() + ' ' + GAME_BUILDDATE
+ ' ' + GAME_BUILDTIME
;
156 result
:= Format(GameTitle
, [info
]);
159 function InitWindow (w
, h
, bpp
: Integer; fullScreen
, maximized
: Boolean): Boolean;
160 var flags
: UInt32
; x
, y
: cint
; title
: AnsiString;
162 // note: on window close make: if assigned(oglDeinitCB) then oglDeinitCB;
163 e_LogWritefln('InitWindow %s %s %s %s', [w
, h
, bpp
, fullScreen
]);
168 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION
, 1);
169 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION
, 1);
170 SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK
, SDL_GL_CONTEXT_PROFILE_ES
);
172 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION
, 2);
173 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION
, 1);
174 SDL_GL_SetAttribute(SDL_GL_RED_SIZE
, 8);
175 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE
, 8);
176 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE
, 8);
177 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE
, 16);
178 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER
, 1);
179 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE
, 8); // lights; it is enough to have 1-bit stencil buffer for lighting, but...
181 flags
:= SDL_WINDOW_OPENGL
or SDL_WINDOW_RESIZABLE
;
182 if fullScreen
then flags
:= flags
or SDL_WINDOW_FULLSCREEN
;
183 if maximized
then flags
:= flags
or SDL_WINDOW_MAXIMIZED
;
186 x
:= SDL_WINDOWPOS_CENTERED
;
187 y
:= SDL_WINDOWPOS_CENTERED
195 window
:= SDL_CreateWindow(PChar(title
), x
, y
, w
, h
, flags
);
196 if window
<> nil then
198 context
:= SDL_GL_CreateContext(window
);
199 if context
<> nil then
203 e_LogWriteln('GL: unable to load OpenGL functions', TMsgType
.Fatal
);
204 SDL_GL_DeleteContext(context
); context
:= nil;
207 if (fullscreen
= false) and (maximized
= false) and (wc
= false) then
209 SDL_GetWindowPosition(window
, @x
, @y
);
212 gFullScreen
:= fullscreen
;
213 gWinMaximized
:= maximized
;
214 gRC_FullScreen
:= fullscreen
;
215 gRC_Maximized
:= maximized
;
221 // SDL_DestroyWindow(window);
222 e_LogWritefln('SDL: unable to create OpenGL context: %s', [SDL_GetError
])
227 e_LogWritefln('SDL: unable to create window: %s', [SDL_GetError
])
232 if fullScreen
then flags
:= SDL_WINDOW_FULLSCREEN
else flags
:= 0;
233 SDL_SetWindowFullscreen(window
, flags
);
234 SDL_SetWindowSize(window
, w
, h
);
235 if maximized
then SDL_MaximizeWindow(window
);
236 // always reset to center when changing fullscreen->windowed for safety purposes
237 if wc
or (gFullscreen
and not fullscreen
) or (gWinMaximized
and not maximized
) then
239 x
:= SDL_WINDOWPOS_CENTERED
;
240 y
:= SDL_WINDOWPOS_CENTERED
247 SDL_SetWindowPosition(window
, x
, y
);
248 if (fullscreen
= false) and (maximized
= false) and (wc
= false) then
250 SDL_GetWindowPosition(window
, @x
, @y
);
253 gFullScreen
:= fullscreen
;
254 gWinMaximized
:= maximized
;
255 gRC_FullScreen
:= fullscreen
;
256 gRC_Maximized
:= maximized
;
262 procedure sys_Repaint
;
264 SDL_GL_SwapWindow(window
)
267 procedure sys_EnableVSync (yes
: Boolean);
270 SDL_GL_SetSwapInterval(1)
272 SDL_GL_SetSwapInterval(0)
275 function sys_GetDisplayModes (bpp
: Integer): SSArray
;
276 var i
, count
, num
, pw
, ph
: Integer; m
: TSDL_DisplayMode
;
279 num
:= SDL_GetNumDisplayModes(display
);
281 e_LogWritefln('SDL: unable to get numer of available display modes: %s', [SDL_GetError
]);
284 e_LogWritefln('Video modes for display %s:', [display
]);
285 SetLength(result
, num
);
286 i
:= 0; count
:= 0; pw
:= 0; ph
:= 0;
289 SDL_GetDisplayMode(display
, i
, @m
);
290 if ((pw
<> m
.w
) or (ph
<> m
.h
)) then
292 e_LogWritefln('* %sx%sx%s@%s', [m
.w
, m
.h
, SDL_BITSPERPIXEL(m
.format
), m
.refresh_rate
]);
293 pw
:= m
.w
; ph
:= m
.h
;
294 result
[count
] := IntToStr(m
.w
) + 'x' + IntToStr(m
.h
);
299 e_LogWritefln('- %sx%sx%s@%s', [m
.w
, m
.h
, SDL_BITSPERPIXEL(m
.format
), m
.refresh_rate
]);
303 SetLength(result
, count
)
307 function sys_SetDisplayMode (w
, h
, bpp
: Integer; fullScreen
, maximized
: Boolean): Boolean;
309 result
:= InitWindow(w
, h
, bpp
, fullScreen
, maximized
)
312 (* --------- Joystick --------- *)
314 procedure HandleJoyButton (var ev
: TSDL_JoyButtonEvent
);
315 var down
: Boolean; key
: Integer;
317 if (ev
.which
< e_MaxJoys
) and (ev
.button
< e_MaxJoyBtns
) then
319 key
:= e_JoyButtonToKey(ev
.which
, ev
.button
);
320 down
:= ev
.type_
= SDL_JOYBUTTONDOWN
;
322 e_LogWritefln('Input Debug: jbutton, joy=%s, button=%s, keycode=%s, press=%s', [ev
.which
, ev
.button
, key
, down
]);
323 e_KeyUpDown(key
, down
);
324 g_Console_ProcessBind(key
, down
)
330 down
:= ev
.type_
= SDL_JOYBUTTONDOWN
;
331 e_LogWritefln('Input Debug: NOT IN RANGE! jbutton, joy=%s, button=%s, press=%s', [ev
.which
, ev
.button
, down
])
336 procedure HandleJoyAxis (var ev
: TSDL_JoyAxisEvent
);
337 var key
, minuskey
: Integer;
339 if (ev
.which
< e_MaxJoys
) and (ev
.axis
< e_MaxJoyAxes
) then
341 key
:= e_JoyAxisToKey(ev
.which
, ev
.axis
, AX_PLUS
);
342 minuskey
:= e_JoyAxisToKey(ev
.which
, ev
.axis
, AX_MINUS
);
345 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
]]);
347 if ev
.value
< JoystickZeroAxes
[ev
.which
, ev
.axis
] - e_JoystickDeadzones
[ev
.which
] then
349 if (e_KeyPressed(key
)) then
351 e_KeyUpDown(key
, False);
352 g_Console_ProcessBind(key
, False)
354 e_KeyUpDown(minuskey
, True);
355 g_Console_ProcessBind(minuskey
, True)
357 else if ev
.value
> JoystickZeroAxes
[ev
.which
, ev
.axis
] + e_JoystickDeadzones
[ev
.which
] then
359 if (e_KeyPressed(minuskey
)) then
361 e_KeyUpDown(minuskey
, False);
362 g_Console_ProcessBind(minuskey
, False)
364 e_KeyUpDown(key
, True);
365 g_Console_ProcessBind(key
, True)
369 if (e_KeyPressed(minuskey
)) then
371 e_KeyUpDown(minuskey
, False);
372 g_Console_ProcessBind(minuskey
, False)
374 if (e_KeyPressed(key
)) then
376 e_KeyUpDown(key
, False);
377 g_Console_ProcessBind(key
, False)
384 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
]])
388 procedure HandleJoyHat (var ev
: TSDL_JoyHatEvent
);
392 hat
: array [HAT_LEFT
..HAT_DOWN
] of Boolean;
394 if (ev
.which
< e_MaxJoys
) and (ev
.hat
< e_MaxJoyHats
) then
397 e_LogWritefln('Input Debug: jhat, joy=%s, hat=%s, value=%s', [ev
.which
, ev
.hat
, ev
.value
]);
398 hat
[HAT_UP
] := LongBool(ev
.value
and SDL_HAT_UP
);
399 hat
[HAT_DOWN
] := LongBool(ev
.value
and SDL_HAT_DOWN
);
400 hat
[HAT_LEFT
] := LongBool(ev
.value
and SDL_HAT_LEFT
);
401 hat
[HAT_RIGHT
] := LongBool(ev
.value
and SDL_HAT_RIGHT
);
402 for i
:= HAT_LEFT
to HAT_DOWN
do
404 if JoystickHatState
[ev
.which
, ev
.hat
, i
] <> hat
[i
] then
407 key
:= e_JoyHatToKey(ev
.which
, ev
.hat
, i
);
408 e_KeyUpDown(key
, down
);
409 g_Console_ProcessBind(key
, down
)
412 JoystickHatState
[ev
.which
, ev
.hat
] := hat
417 e_LogWritefln('Input Debug: NOT IN RANGE! jhat, joy=%s, hat=%s, value=%s', [ev
.which
, ev
.hat
, ev
.value
])
421 procedure HandleJoyAdd (var ev
: TSDL_JoyDeviceEvent
);
424 if (ev
.which
< e_MaxJoys
) then
426 JoystickHandle
[ev
.which
] := SDL_JoystickOpen(ev
.which
);
427 if JoystickHandle
[ev
.which
] <> nil then
429 e_LogWritefln('Added Joystick %s', [ev
.which
]);
430 e_JoystickAvailable
[ev
.which
] := True;
431 for i
:= 0 to Min(SDL_JoystickNumAxes(JoystickHandle
[ev
.which
]), e_MaxJoyAxes
) - 1 do
432 JoystickZeroAxes
[ev
.which
, i
] := SDL_JoystickGetAxis(JoystickHandle
[ev
.which
], i
)
436 e_LogWritefln('Warning! Failed to open Joystick %s', [ev
.which
])
441 e_LogWritefln('Warning! Added Joystick %s, but we support only <= %s', [ev
.which
, e_MaxJoys
])
445 procedure HandleJoyRemove (var ev
: TSDL_JoyDeviceEvent
);
447 e_LogWritefln('Removed Joystick %s', [ev
.which
]);
448 if (ev
.which
< e_MaxJoys
) then
450 e_JoystickAvailable
[ev
.which
] := False;
451 if JoystickHandle
[ev
.which
] <> nil then
452 SDL_JoystickClose(JoystickHandle
[ev
.which
]);
453 JoystickHandle
[ev
.which
] := nil
457 (* --------- Input --------- *)
459 function HandleWindow (var ev
: TSDL_WindowEvent
): Boolean;
463 e_LogWritefln('Window Event: event = %s, data1 = %s, data2 = %s', [ev
.event
, ev
.data1
, ev
.data2
]);
465 SDL_WINDOWEVENT_RESIZED
: UpdateSize(ev
.data1
, ev
.data2
);
466 SDL_WINDOWEVENT_EXPOSED
: sys_Repaint
;
467 SDL_WINDOWEVENT_CLOSE
: result
:= true;
468 SDL_WINDOWEVENT_MOVED
:
473 SDL_WINDOWEVENT_FOCUS_LOST
, SDL_WINDOWEVENT_MINIMIZED
:
476 if gMuteWhenInactive
then
477 e_MuteChannels(true);
478 {$IFDEF ENABLE_HOLMES}
479 if assigned(winBlurCB
) then winBlurCB
;
482 SDL_WINDOWEVENT_FOCUS_GAINED
, SDL_WINDOWEVENT_MAXIMIZED
, SDL_WINDOWEVENT_RESTORED
:
484 if ev
.event
= SDL_WINDOWEVENT_MAXIMIZED
then
486 gWinMaximized
:= true;
487 gRC_Maximized
:= true
489 else if ev
.event
= SDL_WINDOWEVENT_RESTORED
then
491 gWinMaximized
:= false;
492 gRC_Maximized
:= false
494 e_MuteChannels(false);
495 {$IFDEF ENABLE_HOLMES}
496 if assigned(winFocusCB
) then winFocusCB
;
502 procedure HandleKeyboard (var ev
: TSDL_KeyboardEvent
);
503 var down
: Boolean; key
: Integer;
505 key
:= ev
.keysym
.scancode
;
506 down
:= (ev
.type_
= SDL_KEYDOWN
);
507 if key
= SDL_SCANCODE_AC_BACK
then
508 key
:= SDL_SCANCODE_ESCAPE
;
509 {$IFDEF ENABLE_HOLMES}
510 if fuiOnSDLEvent(PSDL_Event(@ev
)^) then
512 // event eaten, but...
513 if not down
then e_KeyUpDown(key
, false);
517 if ev
._repeat
= 0 then
520 e_LogWritefln('Input Debug: keysym, press=%s, scancode=%s', [down
, key
]);
521 e_KeyUpDown(key
, down
);
522 g_Console_ProcessBind(key
, down
);
527 e_LogWritefln('Input Debug: keyrep, scancode=%s', [key
]);
528 g_Console_ProcessBindRepeat(key
);
532 procedure HandleTextInput (var ev
: TSDL_TextInputEvent
);
533 var ch
: UnicodeChar
; sch
: AnsiChar;
535 Utf8ToUnicode(@ch
, PChar(ev
.text), 1);
536 sch
:= AnsiChar(wchar2win(ch
));
538 e_LogWritefln('Input Debug: text, text="%s", ch = %s, sch = %s', [ev
.text, Ord(ch
), Ord(sch
)]);
539 if @sys_CharPress
<> nil then
540 if IsValid1251(Word(ch
)) and IsPrintable1251(ch
) then
544 function sys_HandleInput (): Boolean;
548 ZeroMemory(@ev
, sizeof(ev
));
549 while SDL_PollEvent(@ev
) <> 0 do
552 SDL_QUITEV
: result
:= true;
553 SDL_WINDOWEVENT
: result
:= HandleWindow(ev
.window
);
554 SDL_KEYUP
, SDL_KEYDOWN
: HandleKeyboard(ev
.key
);
555 SDL_JOYBUTTONDOWN
, SDL_JOYBUTTONUP
: HandleJoyButton(ev
.jbutton
);
556 SDL_JOYAXISMOTION
: HandleJoyAxis(ev
.jaxis
);
557 SDL_JOYHATMOTION
: HandleJoyHat(ev
.jhat
);
558 SDL_JOYDEVICEADDED
: HandleJoyAdd(ev
.jdevice
);
559 SDL_JOYDEVICEREMOVED
: HandleJoyRemove(ev
.jdevice
);
560 SDL_TEXTINPUT
: HandleTextInput(ev
.text);
561 SDL_FINGERMOTION
, SDL_FINGERDOWN
, SDL_FINGERUP
: g_Touch_HandleEvent(ev
.tfinger
);
562 {$IFDEF ENABLE_HOLMES}
563 SDL_MOUSEBUTTONDOWN
, SDL_MOUSEBUTTONUP
, SDL_MOUSEWHEEL
, SDL_MOUSEMOTION
: fuiOnSDLEvent(ev
);
569 procedure sys_RequestQuit
;
572 ev
.type_
:= SDL_QUITEV
;
576 (* --------- Init --------- *)
581 e_WriteLog('Init SDL2', TMsgType
.Notify
);
583 {$IFDEF USE_SDLMIXER}
584 flags
:= SDL_INIT_TIMER
or SDL_INIT_AUDIO
or $00004000;
586 flags
:= SDL_INIT_TIMER
or $00004000;
589 flags
:= SDL_INIT_TIMER
or SDL_INIT_VIDEO
;
591 SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK
, '0');
592 if SDL_Init(flags
) <> 0 then
593 raise Exception
.Create('SDL: Init failed: ' + SDL_GetError
);
595 if SDL_InitSubSystem(SDL_INIT_JOYSTICK
) <> 0 then
596 e_LogWritefln('SDL: Init subsystem failed: %s', [SDL_GetError()]);
598 SDL_ShowCursor(SDL_DISABLE
);
603 e_WriteLog('Releasing SDL2', TMsgType
.Notify
);
604 if context
<> nil then
607 SDL_GL_DeleteContext(context
);
610 if window
<> nil then
612 SDL_DestroyWindow(window
);
619 conRegVar('sdl2_display_index', @display
, 'use display index as base', '');
620 conRegVar('sdl2_window_x', @wx
, 'window position x', '');
621 conRegVar('sdl2_window_y', @wy
, 'window position y', '');
622 conRegVar('sdl2_window_center', @wc
, 'force window creation at center', '');
624 wx
:= SDL_WINDOWPOS_CENTERED
;
625 wy
:= SDL_WINDOWPOS_CENTERED
;