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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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 2
* of the License, or (at your option) any later version.
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This code is based on original Soltys source code
* Copyright (c) 1994-1995 Janus B. Wisniewski and L.K. Avalon
*/
#include "cge/keybd.h"
#include "cge/mouse.h"
#include <dos.h>
namespace CGE {
SPRITE * KEYBOARD::Client = NULL;
uint8 KEYBOARD::Key[0x60] = { 0 };
uint16 KEYBOARD::Current = 0;
uint16 KEYBOARD::Code[0x60] = { 0,Esc,'1','2','3','4','5','6','7','8','9','0',
'-','+',BSp,Tab,'Q','W','E','R','T','Y','U',
'I','O','P','[',']',Enter,0/*Ctrl*/,'A','S',
'D','F','G','H','J','K','L',';','\'','`',
0/*LShift*/,'\\','Z','X','C','V','B','N','M',
',','.','/',0/*RShift*/,'*',0/*Alt*/,' ',
0/*Caps*/,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,
0/*NumLock*/,0/*ScrollLock*/,Home,Up,PgUp,
'-',Left,Ctr,Right,'+',End,Down,PgDn,Ins,Del,
0*0x54,0*0x55,0*0x56,F11,F12,0*0x59,0*0x5A,
0*0x5B,0*0x5C,0*0x5D,0*0x5E,0*0x5F
};
void (* KEYBOARD::OldKeyboard) (...);
KEYBOARD::KEYBOARD (void)
{
// steal keyboard interrupt
/* TODO replace totally by scummvm handling
OldKeyboard = getvect(KEYBD_INT);
setvect(KEYBD_INT, NewKeyboard);
*/
warning("STUB: KEYBOARD::KEYBOARD");
}
KEYBOARD::~KEYBOARD (void)
{
// bring back keyboard interrupt
/* TODO replace totally by scummvm handling
setvect(KEYBD_INT, OldKeyboard);
*/
warning("STUB: KEYBOARD::~KEYBOARD");
}
SPRITE * KEYBOARD::SetClient (SPRITE * spr)
{
Swap(Client, spr);
return spr;
}
void KEYBOARD::NewKeyboard (...)
{
// table address
/*
_SI = (uint16) Key;
// take keyboard code
asm in al,60h
asm mov bl,al
asm and bx,007Fh
asm cmp bl,60h
asm jae xit
asm cmp al,bl
asm je ok // key pressed
// key released...
asm cmp [si+bx],bh // BH == 0
asm jne ok
// ...but not pressed: call the original service
OldKeyboard();
return;
ok:
asm shl ax,1
asm and ah,1
asm xor ah,1
asm mov [si+bx],ah
asm jz xit // released: exit
// pressed: lock ASCII code
_SI = (uint16) Code;
asm add bx,bx // uint16 size
asm mov ax,[si+bx]
asm or ax,ax
asm jz xit // zero means NO KEY
Current = _AX;
_SI = (uint16) Client;
asm or si,si
asm jz xit // if (Client) ...
//--- fill current event entry with mask, key code and sprite
asm mov bx,EvtHead // take queue head pointer
asm inc byte ptr EvtHead // update queue head pointer
asm shl bx,3 // * 8
_AX = Current;
asm mov Evt[bx].(struct EVENT)X,ax // key code
asm mov ax,KEYB // event mask
asm mov Evt[bx].(struct EVENT)Msk,ax // event mask
//asm mov Evt[bx].(struct EVENT)Y,dx // row
asm mov Evt[bx].(struct EVENT)Ptr,si // SPRITE pointer
xit:
asm in al,61h // kbd control lines
asm push ax // save it
asm or al,80h // set the "enable kbd" bit
asm out 61h,al // and write it out
asm pop ax // original control port value
asm out 61h,al // write it back
asm mov al,20h // send End-Of-Interrupt
asm out 20h,al // to the 8259 IC
*/
warning("STUB: KEYBOARD::NewKeyboard");
}
} // End of namespace CGE
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