mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-22 14:52:39 +03:00
451 lines
10 KiB
PHP
451 lines
10 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;; ;;
|
||
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
|
||
;; Distributed under terms of the GNU General Public License ;;
|
||
;; ;;
|
||
;; VGA.INC ;;
|
||
;; ;;
|
||
;; 640x480 mode 0x12 VGA functions for MenuetOS ;;
|
||
;; ;;
|
||
;; Paul Butcher, paul.butcher@asa.co.uk ;;
|
||
;; ;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
$Revision$
|
||
|
||
|
||
paletteVGA:
|
||
|
||
;16 colour palette
|
||
mov dx,0x3c8
|
||
mov al,0
|
||
out dx,al
|
||
|
||
mov ecx,16
|
||
mov dx,0x3c9
|
||
xor eax,eax
|
||
|
||
palvganew:
|
||
|
||
mov al,0
|
||
test ah,4
|
||
jz palvgalbl1
|
||
add al,31
|
||
test ah,8
|
||
jz palvgalbl1
|
||
add al,32
|
||
palvgalbl1:
|
||
out dx,al ; red 0,31 or 63
|
||
mov al,0
|
||
test ah,2
|
||
jz palvgalbl2
|
||
add al,31
|
||
test ah,8
|
||
jz palvgalbl2
|
||
add al,32
|
||
palvgalbl2:
|
||
out dx,al ; blue 0,31 or 63
|
||
mov al,0
|
||
test ah,1
|
||
jz palvgalbl3
|
||
add al,31
|
||
test ah,8
|
||
jz palvgalbl3
|
||
add al,32
|
||
palvgalbl3:
|
||
out dx,al ; green 0,31 or 63
|
||
add ah,1
|
||
loop palvganew
|
||
; mov dx, 3ceh
|
||
; mov ax, 0005h
|
||
; out dx, ax
|
||
ret
|
||
|
||
palette320x200:
|
||
|
||
mov edx,0x3c8
|
||
xor eax, eax
|
||
out dx,al
|
||
mov ecx,256
|
||
mov edx,0x3c9
|
||
xor eax,eax
|
||
|
||
palnew:
|
||
mov al,0
|
||
test ah,64
|
||
jz pallbl1
|
||
add al,21
|
||
pallbl1:
|
||
test ah,128
|
||
jz pallbl2
|
||
add al,42
|
||
pallbl2:
|
||
out dx,al
|
||
mov al,0
|
||
test ah,8
|
||
jz pallbl3
|
||
add al,8
|
||
pallbl3:
|
||
test ah,16
|
||
jz pallbl4
|
||
add al,15
|
||
pallbl4:
|
||
test ah,32
|
||
jz pallbl5
|
||
add al,40
|
||
pallbl5:
|
||
out dx,al
|
||
mov al,0
|
||
test ah,1
|
||
jz pallbl6
|
||
add al,8
|
||
pallbl6:
|
||
test ah,2
|
||
jz pallbl7
|
||
add al,15
|
||
pallbl7:
|
||
test ah,4
|
||
jz pallbl8
|
||
add al,40
|
||
pallbl8:
|
||
out dx,al
|
||
add ah,1
|
||
loop palnew
|
||
|
||
ret
|
||
align 4
|
||
uglobal
|
||
novesachecksum dd 0x0
|
||
EGA_counter db 0
|
||
VGA_drawing_screen db 0
|
||
VGA_8_pixels:
|
||
rb 16
|
||
temp:
|
||
.cx dd 0
|
||
endg
|
||
align 4
|
||
checkVga_N13:
|
||
|
||
cmp [SCR_MODE],dword 0x13
|
||
jne @f
|
||
|
||
; cnvl:
|
||
pushad
|
||
cmp [EGA_counter],1
|
||
je novesal
|
||
mov ecx,[MOUSE_X]
|
||
cmp ecx,[novesachecksum]
|
||
jne novesal
|
||
popad
|
||
@@:
|
||
ret
|
||
|
||
novesal:
|
||
mov [novesachecksum],ecx
|
||
mov ecx,0
|
||
movzx eax,word [MOUSE_Y]
|
||
cmp eax,100
|
||
jge m13l3
|
||
mov eax,100
|
||
m13l3:
|
||
cmp eax,480-100
|
||
jbe m13l4
|
||
mov eax,480-100
|
||
m13l4:
|
||
sub eax,100
|
||
imul eax,640*4
|
||
add ecx,eax
|
||
movzx eax,word [MOUSE_X]
|
||
cmp eax,160
|
||
jge m13l1
|
||
mov eax,160
|
||
m13l1:
|
||
cmp eax,640-160
|
||
jbe m13l2
|
||
mov eax,640-160
|
||
m13l2:
|
||
sub eax,160
|
||
shl eax,2
|
||
add ecx,eax
|
||
mov esi,[LFBAddress]
|
||
add esi,ecx
|
||
mov edi,VGABasePtr
|
||
mov edx,200
|
||
mov ecx,320
|
||
cld
|
||
m13pix:
|
||
lodsd
|
||
test eax,eax
|
||
jz .save_pixel
|
||
push eax
|
||
mov ebx,eax
|
||
and eax,(128+64+32) ; blue
|
||
shr eax,5
|
||
and ebx,(128+64+32)*256 ; green
|
||
shr ebx,8+2
|
||
add eax,ebx
|
||
pop ebx
|
||
and ebx,(128+64)*256*256 ; red
|
||
shr ebx,8+8
|
||
add eax,ebx
|
||
.save_pixel:
|
||
stosb
|
||
loop m13pix
|
||
mov ecx,320
|
||
add esi,4*(640-320)
|
||
dec edx
|
||
jnz m13pix
|
||
mov [EGA_counter],0
|
||
popad
|
||
ret
|
||
|
||
VGA_drawbackground:
|
||
; draw all
|
||
cmp [SCR_MODE],dword 0x12
|
||
jne .end
|
||
pushad
|
||
mov esi,[LFBAddress]
|
||
mov edi,VGABasePtr
|
||
mov ebx,640/32 ; 640*480/(8*4)
|
||
mov edx,480
|
||
@@:
|
||
push ebx edx esi edi
|
||
shl edx,9
|
||
lea edx,[edx+edx*4]
|
||
add esi,edx
|
||
shr edx,5
|
||
add edi,edx
|
||
call VGA_draw_long_line
|
||
pop edi esi edx ebx
|
||
dec edx
|
||
jnz @r
|
||
call VGA_draw_long_line_1
|
||
popad
|
||
.end:
|
||
ret
|
||
|
||
VGA_draw_long_line:
|
||
mov dx,3ceh
|
||
mov ax,0ff08h
|
||
cli
|
||
out dx, ax
|
||
mov ax,0005h
|
||
out dx, ax
|
||
m12pix:
|
||
call VGA_draw_32_pixels
|
||
dec ebx
|
||
jnz m12pix
|
||
mov dx,3c4h
|
||
mov ax,0ff02h
|
||
out dx,ax
|
||
mov dx,3ceh
|
||
mov ax,0205h
|
||
out dx,ax
|
||
mov dx,3ceh
|
||
mov al,08h
|
||
out dx,al
|
||
sti
|
||
ret
|
||
|
||
VGA_draw_32_pixels:
|
||
xor eax,eax
|
||
mov ebp,VGA_8_pixels
|
||
mov [ebp],eax
|
||
mov [ebp+4],eax
|
||
mov [ebp+8],eax
|
||
mov [ebp+12],eax
|
||
mov ch,4
|
||
.main_loop:
|
||
mov cl,8
|
||
.convert_pixels_to_VGA:
|
||
lodsd ; eax = 24bit colour
|
||
test eax,eax
|
||
jz .end
|
||
rol eax,8
|
||
mov al,ch
|
||
ror eax,8
|
||
mov ch,1
|
||
dec cl
|
||
shl ch,cl
|
||
cmp al,85
|
||
jbe .p13green
|
||
or [ebp],ch
|
||
cmp al,170
|
||
jbe .p13green
|
||
or [ebp+12],ch
|
||
.p13green:
|
||
cmp ah,85
|
||
jbe .p13red
|
||
or [ebp+4],ch
|
||
cmp ah,170
|
||
jbe .p13red
|
||
or [ebp+12],ch
|
||
.p13red:
|
||
shr eax,8
|
||
cmp ah,85
|
||
jbe .p13cont
|
||
or [ebp+8],ch
|
||
cmp ah,170
|
||
jbe .p13cont
|
||
or [ebp+12],ch
|
||
.p13cont:
|
||
ror eax,8
|
||
mov ch,ah
|
||
inc cl
|
||
.end:
|
||
dec cl
|
||
jnz .convert_pixels_to_VGA
|
||
inc ebp
|
||
dec ch
|
||
jnz .main_loop
|
||
push esi
|
||
sub ebp,4
|
||
mov esi,ebp
|
||
mov dx, 3c4h
|
||
mov ah, 1h
|
||
@@:
|
||
mov al, 02h
|
||
out dx,ax
|
||
xchg ax,bp
|
||
lodsd
|
||
mov [edi],eax
|
||
xchg ax,bp
|
||
shl ah, 1
|
||
cmp ah, 10h
|
||
jnz @r
|
||
add edi,4
|
||
pop esi
|
||
ret
|
||
|
||
VGA_putpixel:
|
||
; eax = x
|
||
; ebx = y
|
||
mov ecx,eax
|
||
mov eax, [esp+32-8+4] ; color
|
||
shl ebx,9
|
||
lea ebx,[ebx+ebx*4] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> 5
|
||
lea edx, [ebx+ecx*4] ; + x*BytesPerPixel (Vesa2.0 32)
|
||
mov edi,edx
|
||
add edi, [LFBAddress] ; + LFB address
|
||
mov [edi], eax ; write to LFB for Vesa2.0
|
||
shr edx,5 ; change BytesPerPixel to 1/8
|
||
mov edi,edx
|
||
add edi, VGABasePtr ; address of pixel in VGA area
|
||
and ecx,0x07 ; bit no. (modulo 8)
|
||
pushfd
|
||
; edi = address, eax = 24bit colour, ecx = bit no. (modulo 8)
|
||
xor edx,edx
|
||
test eax,eax
|
||
jz .p13cont
|
||
cmp al,85
|
||
jbe .p13green
|
||
or dl,0x01
|
||
cmp al,170
|
||
jbe .p13green
|
||
or dl,0x08
|
||
.p13green:
|
||
cmp ah,85
|
||
jbe .p13red
|
||
or dl,0x02
|
||
cmp ah,170
|
||
jbe .p13red
|
||
or dl,0x08
|
||
.p13red:
|
||
shr eax,8
|
||
cmp ah,85
|
||
jbe .p13cont
|
||
or dl,0x04
|
||
cmp ah,170
|
||
jbe .p13cont
|
||
or dl,0x08
|
||
.p13cont:
|
||
ror edx,8
|
||
inc cl
|
||
xor eax,eax
|
||
inc ah
|
||
shr ax,cl
|
||
mov dx,3cfh
|
||
cli
|
||
out dx,al
|
||
mov al,[edi] ; dummy read
|
||
rol edx,8
|
||
mov [edi],dl
|
||
popfd
|
||
;.end:
|
||
ret
|
||
|
||
VGA__putimage:
|
||
; ecx = size [x|y]
|
||
; edx = coordinates [x|y]
|
||
cmp [SCR_MODE],dword 0x12
|
||
jne @f
|
||
pushad
|
||
rol edx,16
|
||
movzx eax,dx
|
||
rol edx,16
|
||
movzx ebx,dx
|
||
movzx edx,cx
|
||
rol ecx,16
|
||
movzx ecx,cx
|
||
call VGA_draw_bar_1
|
||
popad
|
||
@@:
|
||
ret
|
||
|
||
VGA_draw_bar:
|
||
; eax cx
|
||
; ebx cy
|
||
; ecx xe
|
||
; edx ye
|
||
cmp [SCR_MODE],dword 0x12
|
||
jne @f
|
||
pushad
|
||
sub ecx,eax
|
||
sub edx,ebx
|
||
and eax,0xffff
|
||
and ebx,0xffff
|
||
and ecx,0xffff
|
||
and edx,0xffff
|
||
call VGA_draw_bar_1
|
||
popad
|
||
@@:
|
||
ret
|
||
|
||
VGA_draw_bar_1:
|
||
mov [temp.cx],eax
|
||
mov eax, [TASK_BASE]
|
||
add ebx, [eax-twdw + 4]
|
||
mov eax, [eax-twdw + 0]
|
||
add eax, [temp.cx]
|
||
and eax,0xfff8
|
||
shl ebx,9
|
||
lea ebx,[ebx+ebx*4] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> 5
|
||
lea ebx, [ebx+eax*4] ; + x*BytesPerPixel (Vesa2.0 32)
|
||
mov esi,ebx
|
||
add esi, [LFBAddress] ; + LFB address
|
||
shr ebx,5 ; change BytesPerPixel to 1/8
|
||
mov edi,ebx
|
||
add edi, VGABasePtr ; address of pixel in VGA area
|
||
mov ebx,ecx
|
||
shr ebx,5
|
||
inc ebx
|
||
.main_loop:
|
||
call VGA_draw_long_line_1
|
||
dec edx
|
||
jnz .main_loop
|
||
call VGA_draw_long_line_1
|
||
ret
|
||
|
||
VGA_draw_long_line_1:
|
||
push ebx edx esi edi
|
||
shl edx,9
|
||
lea edx,[edx+edx*4]
|
||
add esi,edx
|
||
shr edx,5
|
||
add edi,edx
|
||
call VGA_draw_long_line
|
||
pop edi esi edx ebx
|
||
ret
|
||
|
||
|