;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; VESA12.INC ;;
;; ;;
;; Vesa 1.2 functions for MenuetOS ;;
;; ;;
;; Copyright 2002 Ville Turjanmaa ;;
;; ;;
;; quickcode@mail.ru - bankswitch for S3 cards ;;
;; ;;
;; See file COPYING for details ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision: 2971 $
TRIDENT equ 0
S3_VIDEO equ 0
INTEL_VIDEO equ 0
if TRIDENT
if S3_VIDEO or INTEL_VIDEO
stop
end if
end if
if S3_VIDEO
if TRIDENT or INTEL_VIDEO
stop
end if
end if
if INTEL_VIDEO
if S3_VIDEO or TRIDENT
stop
end if
end if
; A complete video driver should include the following types of function
;
; Putpixel
; Getpixel
;
; Drawimage
; Drawbar
;
; Drawbackground
;
;
; Modifying the set_bank -function is mostly enough
; for different Vesa 1.2 setups.
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
; set_bank for Trident videocards, work on Trident 9440
; modified by Mario79
if TRIDENT
set_bank:
pushfd
cli
cmp al, byte [bank_rw]
je .retsb
mov byte [bank_rw],al
push dx
mov dx,3D8h
out dx,al
pop dx
.retsb:
popfd
ret
end if
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
; set_bank for S3 videocards, work on S3 ViRGE PCI (325)
; modified by kmeaw
if S3_VIDEO
set_bank:
pushfd
cli
cmp al, byte [bank_rw]
je .retsb
mov byte [bank_rw],al
push ax
push dx
push cx
mov cl, al
mov dx, 0x3D4
mov al, 0x38
out dx, al ;CR38 Register Lock 1 ;Note: Traditionally 48h is used to
;unlock and 00h to lock
inc dx
mov al, 0x48
out dx, al ;3d5 -?
dec dx
mov al, 0x31
out dx, al ;CR31 Memory Configuration Register
;0 Enable Base Address Offset (CPUA BASE). Enables bank operation if set, ;disables if clear.
;4-5 Bit 16-17 of the Display Start Address. For the 801/5,928 see index 51h,
;for the 864/964 see index 69h.
inc dx
in al, dx
dec dx
mov ah, al
mov al, 0x31
out dx, ax
mov al, ah
or al, 9
inc dx
out dx, al
dec dx
mov al, 0x35
out dx, al ;CR35 CRT Register Lock
inc dx
in al, dx
dec dx
and al, 0xF0
mov ch, cl
and ch, 0x0F
or ch, al
mov al, 0x35
out dx, al
inc dx
mov al, ch
out dx, ax
dec dx
mov al, 0x51 ;Extended System Control 2 Register
out dx, al
inc dx
in al, dx
dec dx
and al, 0xF3
shr cl, 2
and cl, 0x0C
or cl, al
mov al, 0x51
out dx, al
inc dx
mov al, cl
out dx, al
dec dx
mov al, 0x38
out dx, al
inc dx
xor al, al
out dx, al
dec dx
pop cx
pop dx
pop ax
.retsb:
popfd
ret
end if
;Set bank function for Intel 810/815 chipsets
; *****Modified by Protopopius, Russia.*****
; ********* http://menuetos.hut.ru **************
; ************************************************
if INTEL_VIDEO
set_bank:
pushfd
cli
cmp al, byte [bank_rw]
je .retsb
mov byte [bank_rw],al
push ax
push dx
mov dx,3CEh
mov ah,al ; Save value for later use
mov al,10h ; Index GR10 (Address Mapping)
out dx,al ; Select GR10
inc dl
mov al,3 ; Set bits 0 and 1 (Enable linear page mapping)
out dx,al ; Write value
dec dl
mov al,11h ; Index GR11 (Page Selector)
out dx,al ; Select GR11
inc dl
mov al,ah ; Write address
out dx,al ; Write the value
pop dx
pop ax
.retsb:
popfd
ret
end if
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!}
if (TRIDENT or S3_VIDEO or INTEL_VIDEO)
else
set_bank:
pushfd
cli
cmp al, byte [bank_rw]
je .retsb
mov byte [bank_rw],al
push ax
push dx
mov ah,al
mov dx,0x03D4
mov al,0x39
out dx,al
inc dl
mov al,0xA5
out dx,al
dec dl
mov al,6Ah
out dx,al
inc dl
mov al,ah
out dx,al
dec dl
mov al,0x39
out dx,al
inc dl
mov al,0x5A
out dx,al
dec dl
pop dx
pop ax
.retsb:
popfd
ret
end if
vesa12_drawbackground:
call [disable_mouse]
push eax
push ebx
push ecx
push edx
xor edx,edx
mov eax,dword[BgrDataWidth]
mov ebx,dword[BgrDataHeight]
mul ebx
mov ebx,3
mul ebx
mov [imax],eax
mov eax,[draw_data+32+RECT.left]
mov ebx,[draw_data+32+RECT.top]
mov edi,0 ;no force
v12dp3:
push eax
push ebx
cmp [BgrDrawMode],dword 1 ; tiled background
jne no_vesa12_tiled_bgr
push edx
xor edx,edx
div dword [BgrDataWidth]
push edx
mov eax,ebx
xor edx,edx
div dword [BgrDataHeight]
mov ebx,edx
pop eax
pop edx
no_vesa12_tiled_bgr:
cmp [BgrDrawMode],dword 2 ; stretched background
jne no_vesa12_stretched_bgr
push edx
mul dword [BgrDataWidth]
mov ecx,[Screen_Max_X]
inc ecx
div ecx
push eax
mov eax,ebx
mul dword [BgrDataHeight]
mov ecx,[Screen_Max_Y]
inc ecx
div ecx
mov ebx,eax
pop eax
pop edx
no_vesa12_stretched_bgr:
mov esi,ebx
imul esi, dword [BgrDataWidth]
add esi,eax
lea esi,[esi*3]
add esi,[img_background] ;IMG_BACKGROUND
pop ebx
pop eax
v12di4:
mov cl,[esi+2]
shl ecx,16
mov cx,[esi]
pusha
mov esi,eax
mov edi,ebx
mov eax,[Screen_Max_X]
add eax,1
mul ebx
mov ebx, [_display_data]
add ebx, esi
cmp [eax+ebx],byte 1
jnz v12nbgp
mov eax,[BytesPerScanLine]
mov ebx,edi
mul ebx
add eax, esi
lea eax, [VGABasePtr+eax+esi*2]
cmp byte [ScreenBPP], 24
jz v12bgl3
add eax,esi
v12bgl3:
push ebx
push eax
sub eax,VGABasePtr
shr eax,16
call set_bank
pop eax
and eax,65535
add eax,VGABasePtr
pop ebx
mov [eax],cx
add eax,2
shr ecx,16
mov [eax],cl
sti
v12nbgp:
popa
add esi,3
inc eax
cmp eax,[draw_data+32+RECT.right]
jg v12nodp31
jmp v12dp3
v12nodp31:
mov eax,[draw_data+32+RECT.left]
inc ebx
cmp ebx,[draw_data+32+RECT.bottom]
jg v12dp4
jmp v12dp3
v12dp4:
pop edx
pop ecx
pop ebx
pop eax
ret
vesa12_drawbar:
call [disable_mouse]
;; mov [novesachecksum],dword 0
sub edx,ebx
sub ecx,eax
push esi
push edi
push eax
push ebx
push ecx
push edx
mov ecx,[TASK_BASE]
add eax,[ecx-twdw+WDATA.box.left]
add ebx,[ecx-twdw+WDATA.box.top]
push eax
mov eax,ebx ; y
mov ebx,[BytesPerScanLine]
mul ebx
pop ecx
add eax,ecx ; x
add eax,ecx
add eax,ecx
cmp byte [ScreenBPP], 24 ; 24 or 32 bpp ? - x start
jz dbpi2412
add eax,ecx
dbpi2412:
add eax,VGABasePtr
mov edi,eax
; x size
mov eax,[esp+4] ; [esp+6]
mov ecx,eax
add ecx,eax
add ecx,eax
cmp byte [ScreenBPP], 24 ; 24 or 32 bpp ? - x size
jz dbpi24312
add ecx,eax
dbpi24312:
mov ebx,[esp+0]
; check limits ?
push eax
push ecx
mov eax,[TASK_BASE]
sub eax, CURRENT_TASK
mov ecx,[eax+draw_data+RECT.left]
cmp ecx,0
jnz dbcblimitlset12
mov ecx,[eax+draw_data+RECT.top]
cmp ecx,0
jnz dbcblimitlset12
mov ecx,[eax+draw_data+RECT.right]
cmp ecx,[Screen_Max_X]
jnz dbcblimitlset12
mov ecx,[eax+draw_data+RECT.bottom]
cmp ecx,[Screen_Max_Y]
jnz dbcblimitlset12
pop ecx
pop eax
push dword 0
jmp dbcblimitlno12
dbcblimitlset12:
pop ecx
pop eax
push dword 1
dbcblimitlno12:
cmp byte [ScreenBPP], 24 ; 24 or 32 bpp ?
jz dbpi24bit12
jmp dbpi32bit12
; DRAWBAR 24 BBP
dbpi24bit12:
push eax
push ebx
push edx
mov eax,ecx
mov ebx,3
div ebx
mov ecx,eax
pop edx
pop ebx
pop eax
cld
dbnewpi12:
push ebx
push edi
push ecx
xor edx,edx
mov eax,edi
sub eax,VGABasePtr
mov ebx,3
div ebx
add eax, [_display_data]
mov ebx,[CURRENT_TASK]
cld
dbnp2412:
mov dl,[eax]
push eax
push ecx
cmp dl,bl
jnz dbimp24no12
cmp [esp+5*4],dword 0
jz dbimp24yes12
; call dbcplimit
; jnz dbimp24no12
dbimp24yes12:
push edi
mov eax,edi
sub eax,VGABasePtr
shr eax,16
call set_bank
and edi,0xffff
add edi,VGABasePtr
mov eax,[esp+8+3*4+16+4+4]
stosw
shr eax,16
stosb
sti
pop edi
add edi,3
pop ecx
pop eax
inc eax
loop dbnp2412
jmp dbnp24d12
dbimp24no12:
pop ecx
pop eax
cld
add edi,3
inc eax
loop dbnp2412
dbnp24d12:
mov eax,[esp+3*4+16+4]
test eax,0x80000000
jz nodbgl2412
cmp al,0
jz nodbgl2412
dec eax
mov [esp+3*4+16+4],eax
nodbgl2412:
pop ecx
pop edi
pop ebx
add edi,[BytesPerScanLine]
dec ebx
jz dbnonewpi12
jmp dbnewpi12
dbnonewpi12:
add esp,7*4
ret
; DRAWBAR 32 BBP
dbpi32bit12:
cld
shr ecx,2
dbnewpi3212:
push ebx
push edi
push ecx
mov eax,edi
sub eax,VGABasePtr
shr eax,2
add eax, [_display_data]
mov ebx,[CURRENT_TASK]
cld
dbnp3212:
mov dl,[eax]
push eax
push ecx
cmp dl,bl
jnz dbimp32no12
cmp [esp+5*4],dword 0
jz dbimp32yes12
; call dbcplimit
; jnz dbimp32no12
dbimp32yes12:
push edi
mov eax,edi
sub eax,VGABasePtr
shr eax,16
call set_bank
and edi,0xffff
add edi,VGABasePtr
mov eax,[esp+8+3*4+16+4+4]
stosw
shr eax,16
stosb
sti
pop edi
add edi,4
inc ebp
pop ecx
pop eax
inc eax
loop dbnp3212
jmp dbnp32d12
dbimp32no12:
pop ecx
pop eax
inc eax
add edi,4
inc ebp
loop dbnp3212
dbnp32d12:
mov eax,[esp+12+16+4]
test eax,0x80000000
jz nodbgl3212
cmp al,0
jz nodbgl3212
dec eax
mov [esp+12+16+4],eax
nodbgl3212:
pop ecx
pop edi
pop ebx
add edi,[BytesPerScanLine]
dec ebx
jz nodbnewpi3212
jmp dbnewpi3212
nodbnewpi3212:
add esp,7*4
ret
Vesa12_putpixel24:
mov edi,eax ; x
mov eax,ebx ; y
lea edi,[edi+edi*2]
mov ebx,[BytesPerScanLine]
mul ebx
add edi,eax
mov eax,edi
shr eax,16
call set_bank
and edi,65535
add edi,VGABasePtr
mov eax,[esp+28]
stosw
shr eax,16
mov [edi],al
sti
ret
Vesa12_putpixel32:
mov edi,eax ; x
mov eax,ebx ; y
shl edi,2
mov ebx,[BytesPerScanLine]
mul ebx
add edi,eax
mov eax,edi
shr eax,16
call set_bank
and edi,65535
add edi,VGABasePtr
mov ecx,[esp+28]
mov [edi],ecx
sti
ret
Vesa12_getpixel24:
mov edi,eax ; x
mov eax,ebx ; y
lea edi,[edi+edi*2]
mov ebx,[BytesPerScanLine]
mul ebx
add edi,eax
mov eax,edi
shr eax,16
call set_bank
and edi,65535
add edi,VGABasePtr
mov ecx,[edi]
and ecx,255*256*256+255*256+255
sti
ret
Vesa12_getpixel32:
mov edi,eax ; x
mov eax,ebx ; y
shl edi,2
mov ebx,[BytesPerScanLine]
xor edx,edx
mul ebx
add edi,eax
mov eax,edi
shr eax,16
call set_bank
and edi,65535
add edi,VGABasePtr
mov ecx,[edi]
and ecx,255*256*256+255*256+255
sti
ret
vesa12_putimage:
; ebx = pointer to image
; ecx = size [x|y]
; edx = coordinates [x|y]
; ebp = pointer to 'get' function
; esi = pointer to 'init' function
; edi = parameter for 'get' function
; mov ebx,image
; mov ecx,320*65536+240
; mov edx,20*65536+20
call [disable_mouse]
mov [novesachecksum],dword 0
push esi
push edi
push eax
push ebx
push ecx
push edx
movzx eax,word [esp+2]
movzx ebx,word [esp+0]
mov ecx,[TASK_BASE]
add eax,[ecx-twdw+WDATA.box.left]
add ebx,[ecx-twdw+WDATA.box.top]
push eax
mov eax,ebx ; y
mul dword [BytesPerScanLine]
pop ecx
add eax,ecx ; x
add eax,ecx
add eax,ecx
cmp byte [ScreenBPP], 24 ; 24 or 32 bpp ? - x start
jz pi2412
add eax,ecx
pi2412:
add eax,VGABasePtr
mov edi,eax
; x size
movzx ecx,word [esp+6]
mov esi,[esp+8]
movzx ebx,word [esp+4]
; check limits while draw ?
push ecx
mov eax,[TASK_BASE]
sub eax, CURRENT_TASK
cmp dword [eax+draw_data+RECT.left], 0
jnz dbcblimitlset212
cmp dword [eax+draw_data+RECT.top], 0
jnz dbcblimitlset212
mov ecx,[eax+draw_data+RECT.right]
cmp ecx,[Screen_Max_X]
jnz dbcblimitlset212
mov ecx,[eax+draw_data+RECT.bottom]
cmp ecx,[Screen_Max_Y]
jnz dbcblimitlset212
pop ecx
push 0
jmp dbcblimitlno212
dbcblimitlset212:
pop ecx
push 1
dbcblimitlno212:
cmp byte [ScreenBPP], 24 ; 24 or 32 bpp ?
jnz pi32bit12
pi24bit12:
newpi12:
push edi
push ecx
push ebx
mov edx,edi
sub edx,VGABasePtr
mov ebx,3
div ebx
add edx,[_display_data]
mov ebx,[CURRENT_TASK]
mov bh,[esp+4*3]
np2412:
cmp bl,[edx]
jnz imp24no12
; mov eax,[esi]
push dword [esp+4*3+20]
call ebp
; cmp bh,0
; jz imp24yes12
; call dbcplimit
; jnz imp24no12
imp24yes12:
push edi
push eax
mov eax,edi
sub eax,VGABasePtr
shr eax,16
call set_bank
pop eax
and edi,0xffff
add edi,VGABasePtr
mov [edi],ax
shr eax,16
mov [edi+2],al
pop edi
imp24no12:
inc edx
; add esi,3
add edi,3
dec ecx
jnz np2412
np24d12:
pop ebx
pop ecx
pop edi
add edi,[BytesPerScanLine]
add esi,[esp+32]
cmp ebp,putimage_get1bpp
jz .correct
cmp ebp,putimage_get2bpp
jz .correct
cmp ebp,putimage_get4bpp
jnz @f
.correct:
mov eax,[esp+20]
mov byte[eax],80h
@@:
dec ebx
jnz newpi12
nonewpi12:
pop eax edx ecx ebx eax edi esi
xor eax, eax
ret
pi32bit12:
newpi3212:
push edi
push ecx
push ebx
mov edx,edi
sub edx,VGABasePtr
shr edx,2
add edx, [_display_data]
mov ebx,[CURRENT_TASK]
mov bh,[esp+4*3]
np3212:
cmp bl,[edx]
jnz imp32no12
; mov eax,[esi]
push dword [esp+4*3+20]
call ebp
; cmp bh,0
; jz imp32yes12
; call dbcplimit
; jnz imp32no12
imp32yes12:
push edi
push eax
mov eax,edi
sub eax,VGABasePtr
shr eax,16
call set_bank
pop eax
and edi,0xffff
mov [edi+VGABasePtr],eax
pop edi
imp32no12:
inc edx
; add esi,3
add edi,4
dec ecx
jnz np3212
np32d12:
pop ebx
pop ecx
pop edi
add edi,[BytesPerScanLine]
cmp ebp,putimage_get1bpp
jz .correct
cmp ebp,putimage_get2bpp
jz .correct
cmp ebp,putimage_get4bpp
jnz @f
.correct:
mov eax,[esp+20]
mov byte[eax],80h
@@:
dec ebx
jnz newpi3212
nonewpi3212:
pop eax edx ecx ebx eax edi esi
xor eax, eax
ret
vesa12_read_screen_pixel:
and eax,0x3FFFFF
cmp byte [ScreenBPP], 24 ; 24 or 32 bpp ?
jz v12rsp24
mov edi,eax
shl edi,2
mov eax,edi
shr eax,16
call set_bank
and edi,65535
add edi,VGABasePtr
mov eax,[edi]
and eax,0x00ffffff
ret
v12rsp24:
imul eax,3
mov edi,eax
shr eax,16
call set_bank
and edi,65535
add edi,VGABasePtr
mov eax,[edi]
and eax,0x00ffffff
ret