-
Notifications
You must be signed in to change notification settings - Fork 11
/
adt2keyb.pas
812 lines (721 loc) · 27.5 KB
/
adt2keyb.pas
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
// This file is part of Adlib Tracker II (AT2).
//
// AT2 is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// AT2 is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with AT2. If not, see <http://www.gnu.org/licenses/>.
unit AdT2keyb;
{$S-,Q-,R-,V-,B-,X+}
{$PACKRECORDS 1}
interface
{$IFDEF GO32V2}
{$MODE FPC}
const
keyboard_sleep: Boolean = FALSE;
CTRL_ALT_DEL_pressed: Boolean = FALSE;
_ctrl_pressed: Boolean = FALSE;
_2x_ctrl_pressed: Boolean = FALSE;
{$ENDIF}
procedure keyboard_init;
procedure keyboard_done;
procedure keyboard_reset_buffer;
procedure wait_until_F11_F12_released;
procedure keyboard_poll_input;
function keypressed: Boolean;
function getkey: Word;
function scankey(scancode: Byte): Boolean;
function CapsLock: Boolean;
function NumLock: Boolean;
function shift_pressed: Boolean;
function left_shift_pressed: Boolean;
function right_shift_pressed: Boolean;
function alt_pressed: Boolean;
function ctrl_pressed: Boolean;
function ctrl_tab_pressed: Boolean;
function LookUpKey(key: Word; var table; size: Byte): Boolean;
procedure screen_saver;
{$IFDEF GO32V2}
procedure keyboard_reset_buffer_alt;
procedure keyboard_toggle_sleep;
function ScrollLock: Boolean;
function both_shifts_pressed: Boolean;
{$ENDIF}
implementation
uses
{$IFNDEF UNIX}
CRT,
{$ENDIF}
DOS,
{$IFDEF GO32V2}
GO32,
{$ELSE}
SDL_Types,SDL_Timer,SDL_Events,SDL_Keyboard,
{$ENDIF}
AdT2unit,AdT2sys,AdT2ext2,
TxtScrIO,DialogIO,ParserIO;
var
{$IFDEF GO32V2}
keydown: array[0..127] of Boolean;
{$ELSE}
keydown: array[0..255] of Boolean;
{$ENDIF}
{$IFDEF GO32V2}
var
oldint09_handler: tSegInfo;
newint09_handler: tSegInfo;
user_proc_ptr: Pointer;
backupDS_adt2keyb: Word; EXTERNAL NAME '___v2prt0_ds_alias';
procedure newint09_proc; assembler;
asm
cli
push ds
push es
push fs
push gs
pushad
mov ax,cs:[backupDS_adt2keyb]
mov ds,ax
mov es,ax
mov ax,DosMemSelector
mov fs,ax
call dword ptr [user_proc_ptr]
popad
pop gs
pop fs
pop es
pop ds
jmp cs:[oldint09_handler]
end;
procedure newint09_proc_end; begin end;
procedure int09_user_proc; forward;
procedure int09_user_proc_end; forward;
{$ELSE}
const
_numlock: Boolean = FALSE;
_capslock: Boolean = FALSE;
var
keystate: ^BoolArray;
varnum: Longint;
{$ENDIF}
procedure keyboard_init;
begin
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'ADT2KEYB.PAS:keyboard_init';
FillChar(keydown,SizeOf(keydown),FALSE);
user_proc_ptr := @int09_user_proc;
lock_data(user_proc_ptr,SizeOf(user_proc_ptr));
lock_data(DosMemSelector,SizeOf(DosMemSelector));
lock_code(@int09_user_proc,DWORD(@int09_user_proc_end)-DWORD(@int09_user_proc));
lock_code(@newint09_proc,DWORD(@newint09_proc_end)-DWORD(@newint09_proc));
newint09_handler.offset := @newint09_proc;
newint09_handler.segment := get_cs;
get_pm_interrupt($09,oldint09_handler);
set_pm_interrupt($09,newint09_handler);
{$ELSE}
SDL_EnableKeyRepeat(sdl_typematic_delay,sdl_typematic_rate);
keystate := SDL_GetKeyState(varnum);
{$ENDIF}
end;
procedure keyboard_done;
begin
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'ADT2KEYB.PAS:keyboard_done';
set_pm_interrupt($09,oldint09_handler);
unlock_data(DosMemSelector,SizeOf(DosMemSelector));
unlock_data(user_proc_ptr,SizeOf(user_proc_ptr));
unlock_code(@int09_user_proc,DWORD(@int09_user_proc_end)-DWORD(@int09_user_proc));
lock_code(@newint09_proc,DWORD(@newint09_proc_end)-DWORD(@newint09_proc));
keyboard_reset_buffer;
{$ENDIF}
end;
{$IFDEF GO32V2}
function keypressed: Boolean;
begin
realtime_gfx_poll_proc;
draw_screen;
// filter out CTRL+TAB combo as it is handled within timer routine
If ctrl_tab_pressed then
begin
keyboard_reset_buffer;
keypressed := FALSE;
end
else keypressed := CRT.KeyPressed;
end;
function getkey: Word;
var
result: Word;
key_c,scan_c: Byte;
begin
no_status_refresh := FALSE;
While NOT keypressed do
begin
realtime_gfx_poll_proc;
draw_screen;
If (seconds_counter >= ssaver_time) then screen_saver;
end;
key_c := BYTE(CRT.ReadKey);
If (key_c = 0) then result := BYTE(CRT.ReadKey) SHL 8
else begin
scan_c := inportb($60);
If (scan_c > $80) then scan_c := scan_c-$80;
result := key_c+(scan_c SHL 8);
end;
getkey := result;
end;
function scankey(scancode: Byte): Boolean;
begin
scankey := keydown[scancode];
end;
{$ASMMODE INTEL}
procedure int09_user_proc; assembler;
asm
push eax
push ebx
push es
push ds
call process_global_keys
pop ds
pop es
mov dword ptr [seconds_counter],0
in al,60h
xor ebx,ebx
mov bx,ax
and bx,007fh
and al,80h
jz @@4
@@1: mov byte ptr keydown[ebx],0
cmp ebx,1dh // [Ctrl]
jnz @@3
cmp byte ptr [_ctrl_pressed],1
jnz @@2
mov byte ptr [_2x_ctrl_pressed],1
@@2: mov byte ptr [_ctrl_pressed],1
@@3: jmp @@5
@@4: mov byte ptr keydown[ebx],1
cmp ebx,1dh // [Ctrl]
jz @@5
mov byte ptr [_ctrl_pressed],0
mov byte ptr [_2x_ctrl_pressed],0
@@5: cmp keyboard_sleep,1
jz @@10
cmp byte ptr keydown[1dh],1 // [Ctrl]
jnz @@6
cmp byte ptr keydown[38h],1 // [Alt]
jnz @@6
cmp byte ptr keydown[4ah],1 // *[-]
jz @@10
cmp byte ptr keydown[4eh],1 // *[+]
jz @@10
@@6: cmp byte ptr keydown[1dh],1 // [Ctrl]
jnz @@7
cmp byte ptr keydown[38h],1 // [Alt]
jnz @@7
cmp byte ptr keydown[53h],1 // [Del]
jz @@9
@@7: cmp byte ptr keydown[1dh],1 // [Ctrl]
jnz @@8
cmp byte ptr keydown[02h],1 // *[1]
jz @@10
cmp byte ptr keydown[03h],1 // *[2]
jz @@10
cmp byte ptr keydown[04h],1 // *[3]
jz @@10
cmp byte ptr keydown[05h],1 // *[4]
jz @@10
cmp byte ptr keydown[06h],1 // *[5]
jz @@10
cmp byte ptr keydown[07h],1 // *[6]
jz @@10
cmp byte ptr keydown[08h],1 // *[7]
jz @@10
cmp byte ptr keydown[09h],1 // *[8]
jz @@10
@@8: jmp @@11
@@9: mov CTRL_ALT_DEL_pressed,1
@@10: in al,61h
mov ah,al
or al,80h
out 61h,al
xchg ah,al
out 61h,al
mov al,20h
out 20h,al
pop ebx
pop eax
jmp @@12
@@11: pop ebx
pop eax
@@12:
end;
procedure int09_user_proc_end; begin end;
procedure keyboard_toggle_sleep;
begin
keyboard_sleep := NOT keyboard_sleep;
end;
procedure keyboard_reset_buffer;
begin
_last_debug_str_ := _debug_str_;
_debug_str_ := 'ADT2KEYB.PAS:keyboard_reset_buffer';
MEMW[0:$041c] := MEMW[0:$041a];
end;
procedure keyboard_reset_buffer_alt;
begin
_last_debug_str_ := _debug_str_;
_debug_str_ := 'ADT2KEYB.PAS:keyboard_reset_buffer_alt';
If (MEMW[0:$041c]-MEMW[0:$041a] > 5) then
MEMW[0:$041c] := MEMW[0:$041a];
end;
procedure wait_until_F11_F12_released;
begin
_last_debug_str_ := _debug_str_;
_debug_str_ := 'ADT2KEYB.PAS:wait_until_key_released';
Repeat
realtime_gfx_poll_proc;
draw_screen;
keyboard_reset_buffer;
If (inportb($60) > $80) then FillChar(keydown,SizeOf(keydown),0);
until NOT keydown[$57] and NOT keydown[$58];
end;
procedure keyboard_poll_input;
begin
// relevant for SDL version only
end;
var
temp_buf: array[1..32,1..255] of Record
r,g,b: Byte;
end;
procedure screen_saver;
procedure fadeout;
var
r,g,b: Byte;
index: Byte;
depth: Byte;
function min0(val: Integer): Integer;
begin
If (val <= 0) then min0 := 0
else min0 := val;
end;
begin
_last_debug_str_ := _debug_str_;
_debug_str_ := 'ADT2KEYB.PAS:screen_saver:fadeout';
For depth := 1 to 32 do
begin
For index := 1 to 255 do
begin
GetRGBitem(index,r,g,b);
temp_buf[depth][index].r := r;
temp_buf[depth][index].g := g;
temp_buf[depth][index].b := b;
SetRGBitem(index,min0(r-1),min0(g-1),min0(b-1));
end;
WaitRetrace;
realtime_gfx_poll_proc;
If (depth MOD 4 = 0) then draw_screen;
keyboard_reset_buffer;
end;
end;
procedure fadein;
var
index: Byte;
depth: Byte;
begin
_last_debug_str_ := _debug_str_;
_debug_str_ := 'ADT2KEYB.PAS:screen_saver:fadein';
For depth := 32 downto 1 do
begin
For index := 1 to 255 do
SetRGBitem(index,temp_buf[depth][index].r,
temp_buf[depth][index].g,
temp_buf[depth][index].b);
If (depth MOD 4 <> 0) then WaitRetrace;
realtime_gfx_poll_proc;
If (depth MOD 4 = 0) then draw_screen;
keyboard_reset_buffer;
end;
end;
begin
_last_debug_str_ := _debug_str_;
_debug_str_ := 'ADT2KEYB.PAS:screen_saver';
If (ssaver_time = 0) then EXIT;
fadeout;
Repeat
realtime_gfx_poll_proc;
draw_screen;
until (seconds_counter = 0);
fadein;
end;
var
keyboard_flag: Byte ABSOLUTE 0:$0417;
function CapsLock: Boolean;
begin
CapsLock := (keyboard_flag OR $40 = keyboard_flag);
end;
function NumLock: Boolean;
begin
NumLock := (keyboard_flag OR $20 = keyboard_flag);
end;
function ScrollLock: Boolean;
begin
ScrollLock := (keyboard_flag OR $10 = keyboard_flag);
end;
function shift_pressed: Boolean;
begin
shift_pressed := (keyboard_flag OR 1 = keyboard_flag) or
(keyboard_flag OR 2 = keyboard_flag);
end;
function left_shift_pressed: Boolean;
begin
left_shift_pressed := (keyboard_flag OR 2 = keyboard_flag);
end;
function right_shift_pressed: Boolean;
begin
right_shift_pressed := (keyboard_flag OR 1 = keyboard_flag);
end;
function both_shifts_pressed: Boolean;
begin
both_shifts_pressed := (keyboard_flag OR 1 = keyboard_flag) and
(keyboard_flag OR 2 = keyboard_flag);
end;
function alt_pressed: Boolean;
begin
alt_pressed := scankey(SC_ALT);
end;
function ctrl_pressed: Boolean;
begin
ctrl_pressed := scankey(SC_CTRL);
end;
{$ELSE}
const
SYMTABSIZE = $65;
symtab: array[0..PRED(SYMTABSIZE*10)] of word = (
{ Key Scan ASCII Shift Ctrl Alt Num Caps Sh+Caps Sh+Num SDLK_Keycode}
{ Esc } $01, $1B, $1B, $F000, $F000, $1B, $1B, $1B, $1B, SDLK_ESCAPE,
{ 1! } $02, $31, $21, $0200, $7800, $31, $31, $21, $21, SDLK_1,
{ 2@ } $03, $32, $40, $0300, $7900, $32, $32, $40, $40, SDLK_2,
{ 3# } $04, $33, $23, $0400, $7A00, $33, $33, $23, $23, SDLK_3,
{ 4$ } $05, $34, $24, $0500, $7B00, $34, $34, $24, $24, SDLK_4,
{ 5% } $06, $35, $25, $0600, $7C00, $35, $35, $25, $25, SDLK_5,
{ 6^ } $07, $36, $5E, $0700, $7D00, $36, $36, $5E, $5E, SDLK_6,
{ 7& } $08, $37, $26, $0800, $7E00, $37, $37, $26, $26, SDLK_7,
{ 8* } $09, $38, $2A, $0900, $7F00, $38, $38, $2A, $2A, SDLK_8,
{ 9( } $0A, $39, $28, $0A00, $8000, $39, $39, $28, $28, SDLK_9,
{ 0) } $0B, $30, $29, $0B00, $8100, $30, $30, $29, $29, SDLK_0,
{ -_ } $0C, $2D, $5F, $1F, $8200, $2D, $2D, $5F, $5F, SDLK_MINUS,
{ =+ } $0D, $3D, $2B, $F000, $8300, $3D, $3D, $2B, $2B, SDLK_EQUALS,
{Bksp} $0E, $08, $08, $7F, $F000, $08, $08, $08, $08, SDLK_BACKSPACE,
{ Tab} $0F, $09, $0F00, $F000, $F000, $09, $09, $0F00, $0F00, SDLK_TAB,
{ Q } $10, $71, $51, $11, $1000, $71, $51, $71, $51, SDLK_q,
{ W } $11, $77, $57, $17, $1100, $77, $57, $77, $57, SDLK_w,
{ E } $12, $65, $45, $05, $1200, $65, $45, $65, $45, SDLK_e,
{ R } $13, $72, $52, $12, $1300, $72, $52, $72, $52, SDLK_r,
{ T } $14, $74, $54, $14, $1400, $74, $54, $74, $54, SDLK_t,
{ Y } $15, $79, $59, $19, $1500, $79, $59, $79, $59, SDLK_y,
{ U } $16, $75, $55, $15, $1600, $75, $55, $75, $55, SDLK_u,
{ I } $17, $69, $49, $09, $1700, $69, $49, $69, $49, SDLK_i,
{ O } $18, $6F, $4F, $0F, $1800, $6F, $4F, $6F, $4F, SDLK_o,
{ P } $19, $70, $50, $10, $1900, $70, $50, $70, $50, SDLK_p,
{ [ } $1A, $5B, $7B, $1B, $F000, $5B, $5B, $7B, $7B, SDLK_LEFTBRACKET,
{ ] } $1B, $5D, $7D, $1D, $F000, $5D, $5D, $7D, $7D, SDLK_RIGHTBRACKET,
{enter} $1C, $0D, $0D, $0A, $F000, $0D, $0D, $0D, $0D, SDLK_RETURN,
{ A } $1E, $61, $41, $01, $1E00, $61, $41, $61, $41, SDLK_a,
{ S } $1F, $73, $53, $13, $1F00, $73, $53, $73, $53, SDLK_s,
{ D } $20, $64, $44, $04, $2000, $64, $44, $64, $44, SDLK_d,
{ F } $21, $66, $46, $06, $2100, $66, $46, $66, $46, SDLK_f,
{ G } $22, $67, $47, $07, $2200, $67, $47, $67, $47, SDLK_g,
{ H } $23, $68, $48, $08, $2300, $68, $48, $68, $48, SDLK_h,
{ J } $24, $6A, $4A, $0A, $2400, $6A, $4A, $6A, $4A, SDLK_j,
{ K } $25, $6B, $4B, $0B, $2500, $6B, $4B, $6B, $4B, SDLK_k,
{ L } $26, $6C, $4C, $0C, $2600, $6C, $4C, $6C, $4C, SDLK_l,
{ ;:} $27, $3B, $3A, $F000, $F000, $3B, $3B, $3A, $3A, SDLK_SEMICOLON,
{ '"} $28, $27, $22, $F000, $F000, $27, $27, $22, $22, SDLK_QUOTE,
{ `~} $29, $60, $7E, $F000, $F000, $60, $60, $7E, $7E, SDLK_BACKQUOTE,
{Lshft} $2A, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_LSHIFT,
{ \|} $2B, $5C, $7C, $1C, $F000, $5C, $5C, $7C, $7C, SDLK_BACKSLASH,
{ Z } $2C, $7A, $5A, $1A, $2C00, $7A, $5A, $7A, $5A, SDLK_z,
{ X } $2D, $78, $58, $18, $2D00, $78, $58, $78, $58, SDLK_x,
{ C } $2E, $63, $43, $03, $2E00, $63, $43, $63, $43, SDLK_c,
{ V } $2F, $76, $56, $16, $2F00, $76, $56, $76, $56, SDLK_v,
{ B } $30, $62, $42, $02, $3000, $62, $42, $62, $42, SDLK_b,
{ Key Scan ASCII Shift Ctrl Alt Num Caps Sh+Caps Sh+Num SDLK_Keycode}
{ N } $31, $6E, $4E, $0E, $3100, $6E, $4E, $6E, $4E, SDLK_n,
{ M } $32, $6D, $4D, $0D, $3200, $6D, $4D, $6D, $4D, SDLK_m,
{ ,<} $33, $2C, $3C, $F000, $F000, $2C, $2C, $3C, $3C, SDLK_COMMA,
{ .>} $34, $2E, $3E, $F000, $F000, $2E, $2E, $3E, $3E, SDLK_PERIOD,
{ /?} $35, $2F, $3F, $F000, $F000, $2F, $2F, $3F, $3F, SDLK_SLASH,
{Rshft} $36, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_RSHIFT,
{PrtSc} $37, $2A, $F000, $F000, $F000, $2A, $2A, $F000, $F000, SDLK_PRINT,
{space} $39, $20, $20, $20, $20, $20, $20, $20, $20, SDLK_SPACE,
{caps} $3A, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_CAPSLOCK,
{ F1 } $3B, $3B00, $5400, $5E00, $6800, $3B00, $3B00, $5400, $5400, SDLK_F1,
{ F2 } $3C, $3C00, $5500, $5F00, $6900, $3C00, $3C00, $5500, $5500, SDLK_F2,
{ F3 } $3D, $3D00, $5600, $6000, $6A00, $3D00, $3D00, $5600, $5600, SDLK_F3,
{ F4 } $3E, $3E00, $5700, $6100, $6B00, $3E00, $3E00, $5700, $5700, SDLK_F4,
{ F5 } $3F, $3F00, $5800, $6200, $6C00, $3F00, $3F00, $5800, $5800, SDLK_F5,
{ F6 } $40, $4000, $5900, $6300, $6D00, $4000, $4000, $5900, $5900, SDLK_F6,
{ F7 } $41, $4100, $5A00, $6400, $6E00, $4100, $4100, $5A00, $5A00, SDLK_F7,
{ F8 } $42, $4200, $5B00, $6500, $6F00, $4200, $4200, $5B00, $5B00, SDLK_F8,
{ F9 } $43, $4300, $5C00, $6600, $7000, $4300, $4300, $5C00, $5C00, SDLK_F9,
{ F10} $44, $4400, $5D00, $6700, $7100, $4400, $4400, $5D00, $5D00, SDLK_F10,
{ num} $45, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_NUMLOCK,
{scrl} $46, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_SCROLLOCK,
{home} $47, $4700, $4700, $7700, $F000, $4700, $4700, $4700, $4700, SDLK_HOME,
{ up } $48, $0000, $4800, $F000, $F000, $4800, $4800, $4800, $4800, SDLK_UP,
{pgup} $49, $4900, $4900, $8400, $F000, $4900, $4900, $4900, $4900, SDLK_PAGEUP,
{ np-} $4A, $2D, $2D, $F000, $F000, $2D, $2D, $2D, $2D, SDLK_KP_MINUS,
{left} $4B, $4B00, $4B00, $7300, $F000, $4B00, $4B00, $4B00, $4B00, SDLK_LEFT,
{centr} $4C, $4C00, $4C00, $F000, $F000, $4C00, $4C00, $4C00, $4C00, SDLK_UNKNOWN,
{right} $4D, $4D00, $4D00, $7400, $F000, $4D00, $4D00, $4D00, $4D00, SDLK_RIGHT,
{ np+} $4E, $2B, $2B, $F000, $F000, $2B, $2B, $2B, $2B, SDLK_KP_PLUS,
{end} $4F, $4F00, $4F00, $7500, $F000, $4F00, $4F00, $4F00, $4F00, SDLK_END,
{down} $50, $0000, $5000, $F000, $F000, $5000, $5000, $5000, $5000, SDLK_DOWN,
{pgdn} $51, $5100, $5100, $7600, $F000, $5100, $5100, $5100, $5100, SDLK_PAGEDOWN,
{ ins} $52, $5200, $5200, $F000, $F000, $5200, $5200, $5200, $5200, SDLK_INSERT,
{ del} $53, $5300, $5300, $F000, $F000, $5300, $5300, $5300, $5300, SDLK_DELETE,
{ F11} $57, $4500, $5E00, $6800, $F000, $4500, $4500, $5E00, $5E00, SDLK_F11,
{ F12} $58, $4500, $F000, $6900, $F000, $4600, $4600, $5F00, $5F00, SDLK_F12,
{ np0 } $52, $5200, $5200, $F000, $F000, $30, $30, $29, $30, SDLK_KP0,
{ np1 } $4F, $4F00, $4F00, $F000, $F000, $31, $31, $21, $31, SDLK_KP1,
{ np2 } $50, $5000, $5000, $F000, $F000, $32, $32, $40, $32, SDLK_KP2,
{ np3 } $51, $5100, $5100, $F000, $F000, $33, $33, $23, $33, SDLK_KP3,
{ np4 } $4B, $4B00, $4B00, $F000, $F000, $34, $34, $24, $34, SDLK_KP4,
{ np5 } $4C, $4C00, $4C00, $F000, $F000, $35, $35, $25, $35, SDLK_KP5,
{ np6 } $4D, $4D00, $4D00, $F000, $F000, $36, $36, $5E, $36, SDLK_KP6,
{ np7 } $47, $4700, $4700, $F000, $F000, $37, $37, $26, $37, SDLK_KP7,
{ np8 } $48, $4800, $4800, $F000, $F000, $38, $38, $2A, $38, SDLK_KP8,
{ np9 } $49, $4900, $4900, $F000, $F000, $39, $39, $28, $39, SDLK_KP9,
{ np. } $53, $5300, $5300, $F000, $F000, $2E, $2E, $3E, $3E, SDLK_KP_PERIOD,
{ np/ } $35, $2F, $2F, $F000, $F000, $2F, $2F, $2F, $2F, SDLK_KP_DIVIDE,
{ np* } $37, $2A, $2A, $F000, $F000, $2A, $2A, $2A, $2A, SDLK_KP_MULTIPLY,
{NPent} $1C, $0D, $0D, $0A, $F000, $0D, $0D, $0A, $0A, SDLK_KP_ENTER,
{LALT} $FC, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_LALT,
{RALT} $FD, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_RALT,
{LCTRL} $FE, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_LCTRL,
{RCTRL} $FF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, $FFFF, SDLK_RCTRL
{ Key Scan ASCII Shift Ctrl Alt Num Caps Sh+Caps Sh+Num SDLK_Keycode}
);
procedure TranslateKeycodes;
var
i,j: Integer;
modkeys: SDLMod;
begin
// translate SDL_Keycodes to scancodes
For i := 0 to SDLK_LAST do
For j := 0 to PRED(SYMTABSIZE) do
If (i = symtab[j*10+9]) then
keydown[symtab[j*10]] := keystate^[i];
// read capslock and numlock state
modkeys := SDL_GetModState;
_capslock := (modkeys AND KMOD_CAPS) <> 0;
_numlock := (modkeys AND KMOD_NUM) <> 0;
end;
procedure keyboard_poll_input;
begin
SDL_PumpEvents;
TranslateKeycodes;
process_global_keys;
end;
function keypressed: Boolean;
var
event: SDL_Event;
begin
keypressed := FALSE;
Repeat
keyboard_poll_input;
If (SDL_PeepEvents(event,1,SDL_PEEKEVENT,SDL_QUITMASK) > 0) then
begin
_force_program_quit := TRUE;
keypressed := TRUE;
EXIT;
end;
If (SDL_PeepEvents(event,1,SDL_PEEKEVENT,SDL_MOUSEEVENTMASK) > 0) then
begin
// skip mouse events
SDL_PeepEvents(event,1,SDL_GETEVENT,SDL_MOUSEEVENTMASK);
CONTINUE;
end;
If (SDL_PeepEvents(event,1,SDL_PEEKEVENT,SDL_KEYDOWNMASK) > 0) then
If (event.key.keysym.sym >= SDLK_NUMLOCK) then
begin
// skip modifier key presses
SDL_PeepEvents(event,1,SDL_GETEVENT,SDL_KEYDOWNMASK);
CONTINUE;
end
else
keypressed := TRUE;
EXIT;
until FALSE;
end;
function getkey: Word;
function getkey_proc: Word;
var
event: SDL_Event;
i,j: Integer;
begin
Repeat
draw_screen;
If (SDL_PollEvent(@event) <> 0) then
begin
If (event.eventtype = SDL_EVENTQUIT) or _force_program_quit then
begin
_force_program_quit := TRUE;
getkey_proc := kESC;
EXIT;
end;
// skip all other event except key presses
If (event.eventtype <> SDL_KEYDOWN) then CONTINUE
else
begin
// skip all modifier keys
If (event.key.keysym.sym >= SDLK_NUMLOCK) then CONTINUE;
// roll thru symtab, form correct getkey value
For j := 0 to PRED(SYMTABSIZE) do
begin
If (event.key.keysym.sym = symtab[j*10+9]) then
begin // first check with modifier keys, order: ALT, CTRL, SHIFT (as DOS does)
{ ALT }
If (keydown[SC_LALT] = TRUE) or (keydown[SC_RALT] = TRUE) then
begin
// impossible combination
If (symtab[j*10+4] = WORD_NULL) then CONTINUE;
If (symtab[j*10+4] > BYTE_NULL) then
begin
getkey_proc := symtab[j*10+4];
EXIT;
end;
getkey_proc := (symtab[j*10] SHL 8) OR symtab[j*10+4];
EXIT;
end;
{ CTRL }
If (keydown[SC_LCTRL] = TRUE) or (keydown[SC_RCTRL] = TRUE) then
begin
// impossible combination
If (symtab[j*10+3] = WORD_NULL) then CONTINUE;
If (symtab[j*10+3] > BYTE_NULL) then
begin
getkey_proc := symtab[j*10+3];
EXIT;
end;
getkey_proc := (symtab[j*10] SHL 8) OR symtab[j*10+3];
EXIT;
end;
{ SHIFT }
If (keydown[SC_LSHIFT] = TRUE) or (keydown[SC_RSHIFT] = TRUE) then
begin
i := 2; // SHIFT
If (_capslock = TRUE) then i := 7 // caps lock
else If (_numlock = TRUE) then i := 8; // num lock
// impossible combination
If (symtab[j*10+i] = WORD_NULL) then CONTINUE;
If (symtab[j*10+i] > BYTE_NULL) then getkey_proc := symtab[j*10+i]
else getkey_proc := (symtab[j*10] SHL 8) OR symtab[j*10+i];
EXIT;
end;
{ normal ASCII }
i := 1;
If (_capslock = TRUE) then i := 6 // caps lock
else If (_numlock = TRUE) then i := 5; // num lock
// impossible combination
If (symtab[j*10+i] = WORD_NULL) then CONTINUE;
If (symtab[j*10+i] > BYTE_NULL) then getkey_proc := symtab[j*10+i]
else getkey_proc := (symtab[j*10] SHL 8) OR symtab[j*10+i]; // (scancode << 8) + ASCII
EXIT;
end;
end;
end;
end;
until FALSE;
end;
begin
Repeat draw_screen until keypressed;
// filter out CTRL+TAB combo as it is handled within timer routine
If ctrl_tab_pressed then
begin
draw_screen;
keyboard_reset_buffer;
getkey := WORD_NULL;
end
else getkey := getkey_proc;
end;
function scankey(scancode: Byte): Boolean;
begin
TranslateKeycodes;
scankey := keydown[scancode];
end;
procedure keyboard_reset_buffer;
var
event: SDL_Event;
begin
// flush all unused events
While (SDL_PollEvent(@event) <> 0) do ;
end;
procedure wait_until_F11_F12_released;
begin
_debug_str_ := 'ADT2KEYB.PAS:wait_until_F11_F12_released';
Repeat
draw_screen;
SDL_PumpEvents;
TranslateKeycodes;
until NOT keydown[SC_F11] and NOT keydown[SC_F12];
keyboard_reset_buffer;
end;
function CapsLock: Boolean;
begin
CapsLock := _capslock;
end;
function NumLock: Boolean;
begin
NumLock := _numlock;
end;
function shift_pressed: Boolean;
begin
shift_pressed := scankey(SC_LSHIFT) or scankey(SC_RSHIFT);
end;
function left_shift_pressed: Boolean;
begin
left_shift_pressed := scankey(SC_LSHIFT);
end;
function right_shift_pressed: Boolean;
begin
right_shift_pressed := scankey(SC_RSHIFT);
end;
function alt_pressed: Boolean;
begin
alt_pressed := scankey(SC_LALT) or scankey(SC_RALT);
end;
function ctrl_pressed: Boolean;
begin
ctrl_pressed := scankey(SC_LCTRL) or scankey(SC_RCTRL);
end;
procedure screen_saver;
begin
// relevant for DOS version only
end;
{$ENDIF}
function ctrl_tab_pressed: Boolean;
begin
ctrl_tab_pressed := ctrl_pressed and scankey(SC_TAB);
end;
function LookUpKey(key: Word; var table; size: Byte): Boolean;
var
idx: Byte;
begin
LookUpKey := FALSE;
If (size <> 0) then
For idx := 0 to PRED(size) do
If (pWord(@table)[idx] = key) then
begin
LookUpKey := TRUE;
BREAK;
end;
end;
end.