mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-15 19:33:59 +03:00
791845236e
git-svn-id: svn://kolibrios.org@2466 a494cfbc-eb01-0410-851d-a64ba20cac60
795 lines
20 KiB
PHP
795 lines
20 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;; ;;
|
||
;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
|
||
;; Distributed under terms of the GNU General Public License ;;
|
||
;; ;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
$Revision$
|
||
|
||
struc VBE_VGAInfo {
|
||
.VESASignature dd ? ; char
|
||
.VESAVersion dw ? ; short
|
||
.OemStringPtr dd ? ; char *
|
||
.Capabilities dd ? ; ulong
|
||
.VideoModePtr dd ? ; ulong
|
||
.TotalMemory dw ? ; short
|
||
; VBE 2.0+
|
||
.OemSoftwareRev db ? ; short
|
||
.OemVendorNamePtr dw ? ; char *
|
||
.OemProductNamePtr dw ? ; char *
|
||
.OemProductRevPtr dw ? ; char *
|
||
.reserved rb 222 ; char
|
||
.OemData rb 256 ; char
|
||
}
|
||
|
||
struc VBE_ModeInfo {
|
||
.ModeAttributes dw ? ; short
|
||
.WinAAttributes db ? ; char
|
||
.WinBAttributes db ? ; char
|
||
.WinGranularity dw ? ; short
|
||
.WinSize dw ? ; short
|
||
.WinASegment dw ? ; ushort
|
||
.WinBSegment dw ? ; ushort
|
||
.WinFuncPtr dd ? ; void *
|
||
.BytesPerScanLine dw ? ; short
|
||
.XRes dw ? ; short
|
||
.YRes dw ? ; short
|
||
.XCharSize db ? ; char
|
||
.YCharSize db ? ; char
|
||
.NumberOfPlanes db ? ; char
|
||
.BitsPerPixel db ? ; char
|
||
.NumberOfBanks db ? ; char
|
||
.MemoryModel db ? ; char
|
||
.BankSize db ? ; char
|
||
.NumberOfImagePages db ? ; char
|
||
.res1 db ? ; char
|
||
.RedMaskSize db ? ; char
|
||
.RedFieldPosition db ? ; char
|
||
.GreenMaskSize db ? ; char
|
||
.GreenFieldPosition db ? ; char
|
||
.BlueMaskSize db ? ; char
|
||
.BlueFieldPosition db ? ; char
|
||
.RsvedMaskSize db ? ; char
|
||
.RsvedFieldPosition db ? ; char
|
||
.DirectColorModeInfo db ? ; char ; MISSED IN THIS TUTORIAL!! SEE ABOVE
|
||
; VBE 2.0+
|
||
.PhysBasePtr dd ? ; ulong
|
||
.OffScreenMemOffset dd ? ; ulong
|
||
.OffScreenMemSize dw ? ; short
|
||
; VBE 3.0+
|
||
.LinbytesPerScanLine dw ? ; short
|
||
.BankNumberOfImagePages db ? ; char
|
||
.LinNumberOfImagePages db ? ; char
|
||
.LinRedMaskSize db ? ; char
|
||
.LinRedFieldPosition db ? ; char
|
||
.LingreenMaskSize db ? ; char
|
||
.LinGreenFieldPosition db ? ; char
|
||
.LinBlueMaskSize db ? ; char
|
||
.LinBlueFieldPosition db ? ; char
|
||
.LinRsvdMaskSize db ? ; char
|
||
.LinRsvdFieldPosition db ? ; char
|
||
.MaxPixelClock dd ? ; ulong
|
||
.res2 rb 190 ; char
|
||
}
|
||
|
||
virtual at $A000
|
||
vi VBE_VGAInfo
|
||
mi VBE_ModeInfo
|
||
modes_table:
|
||
end virtual
|
||
cursor_pos dw 0 ;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
|
||
home_cursor dw 0 ;current shows rows a table
|
||
end_cursor dw 0 ;end of position current shows rows a table
|
||
scroll_start dw 0 ;start position of scroll bar
|
||
scroll_end dw 0 ;end position of scroll bar
|
||
long_v_table equ 9 ;long of visible video table
|
||
size_of_step equ 10
|
||
scroll_area_size equ (long_v_table-2)
|
||
int2str:
|
||
dec bl
|
||
jz @f
|
||
xor edx, edx
|
||
div ecx
|
||
push edx
|
||
call int2str
|
||
pop eax
|
||
@@:
|
||
or al, 0x30
|
||
mov [ds:di], al
|
||
inc di
|
||
ret
|
||
|
||
int2strnz:
|
||
cmp eax, ecx
|
||
jb @f
|
||
xor edx, edx
|
||
div ecx
|
||
push edx
|
||
call int2strnz
|
||
pop eax
|
||
@@:
|
||
or al, 0x30
|
||
mov [es:di], al
|
||
inc di
|
||
ret
|
||
|
||
;-------------------------------------------------------
|
||
;Write message about incorrect v_mode and write message about jmp on swith v_mode
|
||
v_mode_error:
|
||
_setcursor 19,2
|
||
mov si, fatalsel
|
||
call printplain
|
||
_setcursor 20,2
|
||
mov si, pres_key
|
||
call printplain
|
||
xor eax, eax
|
||
int 16h
|
||
jmp cfgmanager.d
|
||
;-------------------------------------------------------
|
||
;
|
||
|
||
|
||
|
||
;-------------------------------------------------------
|
||
print_vesa_info:
|
||
_setcursor 5,2
|
||
|
||
mov [es:vi.VESASignature], 'VBE2'
|
||
mov ax, 0x4F00
|
||
mov di, vi ;0xa000
|
||
int 0x10
|
||
or ah, ah
|
||
jz @f
|
||
mov [es:vi.VESASignature], 'VESA'
|
||
mov ax, $4F00
|
||
mov di, vi
|
||
int 0x10
|
||
or ah, ah
|
||
jnz .exit
|
||
@@:
|
||
cmp [es:vi.VESASignature], 'VESA'
|
||
jne .exit
|
||
cmp [es:vi.VESAVersion], 0x0100
|
||
jb .exit
|
||
jmp .vesaok2
|
||
|
||
.exit:
|
||
mov si, novesa
|
||
call printplain
|
||
ret
|
||
|
||
.vesaok2:
|
||
mov ax, [es:vi.VESAVersion]
|
||
add ax, '00'
|
||
|
||
mov [s_vesa.ver], ah
|
||
mov [s_vesa.ver+2], al
|
||
mov si, s_vesa
|
||
call printplain
|
||
|
||
_setcursor 4,2
|
||
mov si, word[es:vi.OemStringPtr]
|
||
mov di, si
|
||
|
||
push ds
|
||
mov ds, word[es:vi.OemStringPtr+2]
|
||
call printplain
|
||
pop ds
|
||
|
||
ret
|
||
;-----------------------------------------------------------------------------
|
||
|
||
calc_vmodes_table:
|
||
pushad
|
||
|
||
; push 0
|
||
; pop es
|
||
|
||
lfs si, [es:vi.VideoModePtr]
|
||
|
||
mov bx, modes_table
|
||
;save no vesa mode of work 320x200, EGA/CGA 256 梥⮢ and 640x480, VGA 16 梥⮢
|
||
mov word [es:bx], 640
|
||
mov word [es:bx+2], 480
|
||
mov word [es:bx+6], 0x13
|
||
|
||
mov word [es:bx+10], 640
|
||
mov word [es:bx+12], 480
|
||
mov word [es:bx+16], 0x12
|
||
add bx, 20
|
||
.next_mode:
|
||
mov cx, word [fs:si]; mode number
|
||
cmp cx, -1
|
||
je .modes_ok.2
|
||
|
||
mov ax, 0x4F01
|
||
mov di, mi
|
||
int 0x10
|
||
|
||
or ah, ah
|
||
jnz .modes_ok.2;vesa_info.exit
|
||
|
||
test [es:mi.ModeAttributes], 00000001b ;videomode support ?
|
||
jz @f
|
||
test [es:mi.ModeAttributes], 00010000b ;picture ?
|
||
jz @f
|
||
test [es:mi.ModeAttributes], 10000000b ;LFB ?
|
||
jz @f
|
||
|
||
cmp [es:mi.BitsPerPixel], 24 ;It show only videomodes to have support 24 and 32 bpp
|
||
jb @f
|
||
|
||
; cmp [es:mi.BitsPerPixel],16
|
||
; jne .l0
|
||
; cmp [es:mi.GreenMaskSize],5
|
||
; jne .l0
|
||
; mov [es:mi.BitsPerPixel],15
|
||
|
||
|
||
.l0:
|
||
cmp [es:mi.XRes], 640
|
||
jb @f
|
||
cmp [es:mi.YRes], 480
|
||
jb @f
|
||
; cmp [es:mi.BitsPerPixel],8
|
||
; jb @f
|
||
|
||
mov ax, [es:mi.XRes]
|
||
mov [es:bx+0], ax ; +0[2] : resolution X
|
||
mov ax, [es:mi.YRes]
|
||
mov [es:bx+2], ax ; +2[2] : resolution Y
|
||
mov ax, [es:mi.ModeAttributes]
|
||
mov [es:bx+4], ax ; +4[2] : attributes
|
||
|
||
cmp [s_vesa.ver], '2'
|
||
; jb .lp1
|
||
jb @f ; We do not use Vesa 1.2 mode is now
|
||
|
||
or cx, 0x4000 ; use LFB
|
||
.lp1:
|
||
mov [es:bx+6], cx ; +6 : mode number
|
||
movzx ax, byte [es:mi.BitsPerPixel]
|
||
mov word [es:bx+8], ax ; +8 : bits per pixel
|
||
add bx, size_of_step ; size of record
|
||
|
||
@@:
|
||
add si, 2
|
||
jmp .next_mode
|
||
|
||
.modes_ok.2:
|
||
|
||
mov word[es:bx], -1 ;end video table
|
||
mov word[end_cursor], bx ;save end cursor position
|
||
;;;;;;;;;;;;;;;;;;
|
||
;Sort array
|
||
; mov si,modes_table
|
||
;.new_mode:
|
||
; mov ax,word [es:si]
|
||
; cmp ax,-1
|
||
; je .exxit
|
||
; add ax,word [es:si+2]
|
||
; add ax,word [es:si+8]
|
||
; mov bp,si
|
||
;.again:
|
||
; add bp,12
|
||
; mov bx,word [es:bp]
|
||
; cmp bx,-1
|
||
; je .exit
|
||
; add bx,word [es:bp+2]
|
||
; add bx,word [es:bp+8]
|
||
;
|
||
; cmp ax,bx
|
||
; ja .loops
|
||
; jmp .again
|
||
;.loops:
|
||
; push dword [es:si]
|
||
; push dword [es:si+4]
|
||
; push dword [es:si+8]
|
||
; push dword [es:bp]
|
||
; push dword [es:bp+4]
|
||
; push dword [es:bp+8]
|
||
;
|
||
; pop dword [es:si+8]
|
||
; pop dword [es:si+4]
|
||
; pop dword [es:si]
|
||
; pop dword [es:bp+8]
|
||
; pop dword [es:bp+4]
|
||
; pop dword [es:bp]
|
||
; jmp .new_mode
|
||
;
|
||
;.exit: add si,12
|
||
; jmp .new_mode
|
||
;.exxit:
|
||
popad
|
||
ret
|
||
|
||
;-----------------------------------------------------------------------------
|
||
|
||
draw_current_vmode:
|
||
push 0
|
||
pop es
|
||
|
||
mov si, word [cursor_pos]
|
||
|
||
cmp word [es:si+6], 0x12
|
||
je .no_vesa_0x12
|
||
|
||
cmp word [es:si+6], 0x13
|
||
je .no_vesa_0x13
|
||
|
||
if defined extended_primary_loader
|
||
mov di, config_file_variables
|
||
else
|
||
mov di, loader_block_error
|
||
end if
|
||
movzx eax, word[es:si+0]
|
||
mov ecx, 10
|
||
call int2strnz
|
||
mov byte[es:di], 'x'
|
||
inc di
|
||
movzx eax, word[es:si+2]
|
||
call int2strnz
|
||
mov byte[es:di], 'x'
|
||
inc di
|
||
movzx eax, word[es:si+8]
|
||
call int2strnz
|
||
mov dword[es:di], 0x00000d0a
|
||
if defined extended_primary_loader
|
||
mov si, config_file_variables
|
||
else
|
||
mov si, loader_block_error
|
||
end if
|
||
push ds
|
||
push es
|
||
pop ds
|
||
call printplain
|
||
pop ds
|
||
ret
|
||
.no_vesa_0x13:
|
||
mov si, mode0
|
||
jmp .print
|
||
.no_vesa_0x12:
|
||
mov si, mode9
|
||
.print:
|
||
call printplain
|
||
ret
|
||
;-----------------------------------------------------------------------------
|
||
check_first_parm:
|
||
if defined extended_primary_loader
|
||
mov cx, [number_vm]
|
||
jcxz .novbemode
|
||
mov si, modes_table
|
||
.findvbemode:
|
||
cmp [es:si+6], cx
|
||
jnz @f
|
||
cmp word [es:si+8], 32
|
||
je .ok_found_mode
|
||
cmp word [es:si+8], 24
|
||
je .ok_found_mode
|
||
@@:
|
||
add si, size_of_step
|
||
cmp word [es:si], -1
|
||
jnz .findvbemode
|
||
.novbemode:
|
||
mov ax, [x_save]
|
||
test ax, ax
|
||
jz .zerro
|
||
mov bx, [y_save]
|
||
mov si, modes_table
|
||
call .loops
|
||
test ax, ax
|
||
jz .ok_found_mode
|
||
else
|
||
mov si, word [preboot_graph]
|
||
test si, si
|
||
jnz .no_zero ;if no zero
|
||
end if
|
||
.zerro:
|
||
; mov ax,modes_table
|
||
; mov word [cursor_pos],ax
|
||
; mov word [home_cursor],ax
|
||
; mov word [preboot_graph],ax
|
||
;SET default video of mode first probe will fined a move of work 1024x768@32
|
||
|
||
mov ax, 1024
|
||
mov bx, 768
|
||
mov si, modes_table
|
||
call .loops
|
||
test ax, ax
|
||
jz .ok_found_mode
|
||
mov ax, 800
|
||
mov bx, 600
|
||
mov si, modes_table
|
||
call .loops
|
||
test ax, ax
|
||
jz .ok_found_mode
|
||
mov ax, 640
|
||
mov bx, 480
|
||
mov si, modes_table
|
||
call .loops
|
||
test ax, ax
|
||
jz .ok_found_mode
|
||
|
||
mov si, modes_table
|
||
if ~ defined extended_primary_loader
|
||
jmp .ok_found_mode
|
||
|
||
|
||
|
||
.no_zero:
|
||
mov bp, word [number_vm]
|
||
cmp bp, word [es:si+6]
|
||
jz .ok_found_mode
|
||
mov ax, word [x_save]
|
||
mov bx, word [y_save]
|
||
mov si, modes_table
|
||
call .loops
|
||
test ax, ax
|
||
jz .ok_found_mode
|
||
|
||
mov si, modes_table
|
||
; cmp ax,modes_table
|
||
; jb .zerro ;check on correct if bellow
|
||
; cmp ax,word [end_cursor]
|
||
; ja .zerro ;check on correct if anymore
|
||
end if
|
||
|
||
.ok_found_mode:
|
||
mov word [home_cursor], si
|
||
; mov word [cursor_pos],si
|
||
mov word [preboot_graph], si
|
||
mov ax, si
|
||
|
||
mov ecx, long_v_table
|
||
|
||
.loop:
|
||
add ax, size_of_step
|
||
cmp ax, word [end_cursor]
|
||
jae .next_step
|
||
loop .loop
|
||
.next_step:
|
||
sub ax, size_of_step*long_v_table
|
||
cmp ax, modes_table
|
||
jae @f
|
||
mov ax, modes_table
|
||
@@:
|
||
|
||
mov word [home_cursor], ax
|
||
mov si, [preboot_graph]
|
||
mov word [cursor_pos], si
|
||
|
||
push word [es:si]
|
||
pop word [x_save]
|
||
push word [es:si+2]
|
||
pop word [y_save]
|
||
push word [es:si+6]
|
||
pop word [number_vm]
|
||
|
||
ret
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
.loops:
|
||
cmp ax, word [es:si]
|
||
jne .next
|
||
cmp bx, word [es:si+2]
|
||
jne .next
|
||
cmp word [es:si+8], 32
|
||
je .ok
|
||
cmp word [es:si+8], 24
|
||
je .ok
|
||
.next:
|
||
add si, size_of_step
|
||
cmp word [es:si], -1
|
||
je .exit
|
||
jmp .loops
|
||
.ok:
|
||
xor ax, ax
|
||
ret
|
||
.exit:
|
||
or ax, -1
|
||
ret
|
||
|
||
|
||
;-----------------------------------------------------------------------------
|
||
|
||
;default_vmode:
|
||
|
||
;-----------------------------------------------------------------------------
|
||
draw_vmodes_table:
|
||
_setcursor 9, 2
|
||
mov si, gr_mode
|
||
call printplain
|
||
|
||
mov si, _st
|
||
call printplain
|
||
|
||
push word [cursor_pos]
|
||
pop ax
|
||
push word [home_cursor]
|
||
pop si
|
||
mov cx, si
|
||
|
||
cmp ax, si
|
||
je .ok
|
||
jb .low
|
||
|
||
|
||
add cx, size_of_step*long_v_table
|
||
|
||
cmp ax, cx
|
||
jb .ok
|
||
|
||
sub cx, size_of_step*long_v_table
|
||
add cx, size_of_step
|
||
cmp cx, word[end_cursor]
|
||
jae .ok
|
||
add si, size_of_step
|
||
push si
|
||
pop word [home_cursor]
|
||
jmp .ok
|
||
|
||
|
||
.low:
|
||
sub cx, size_of_step
|
||
cmp cx, modes_table
|
||
jb .ok
|
||
push cx
|
||
push cx
|
||
pop word [home_cursor]
|
||
pop si
|
||
|
||
|
||
.ok:
|
||
; calculate scroll position
|
||
push si
|
||
mov ax, [end_cursor]
|
||
sub ax, modes_table
|
||
mov bx, size_of_step
|
||
cwd
|
||
div bx
|
||
mov si, ax ; si = size of list
|
||
mov ax, [home_cursor]
|
||
sub ax, modes_table
|
||
cwd
|
||
div bx
|
||
mov di, ax
|
||
mov ax, scroll_area_size*long_v_table
|
||
cwd
|
||
div si
|
||
test ax, ax
|
||
jnz @f
|
||
inc ax
|
||
@@:
|
||
cmp al, scroll_area_size
|
||
jb @f
|
||
mov al, scroll_area_size
|
||
@@:
|
||
mov cx, ax
|
||
; cx = scroll height
|
||
; calculate scroll pos
|
||
xor bx, bx ; initialize scroll pos
|
||
sub al, scroll_area_size+1
|
||
neg al
|
||
sub si, long_v_table-1
|
||
jbe @f
|
||
mul di
|
||
div si
|
||
mov bx, ax
|
||
@@:
|
||
inc bx
|
||
imul ax, bx, size_of_step
|
||
add ax, [home_cursor]
|
||
mov [scroll_start], ax
|
||
imul cx, size_of_step
|
||
add ax, cx
|
||
mov [scroll_end], ax
|
||
pop si
|
||
mov bp, long_v_table ;show rows
|
||
.@@_next_bit:
|
||
;clear cursor
|
||
mov ax, ' '
|
||
mov word[ds:_r1+21], ax
|
||
mov word[ds:_r1+50], ax
|
||
|
||
mov word[ds:_r2+21], ax
|
||
mov word[ds:_r2+45], ax
|
||
|
||
mov word[ds:_rs+21], ax
|
||
mov word[ds:_rs+46], ax
|
||
; draw string
|
||
cmp word [es:si+6], 0x12
|
||
je .show_0x12
|
||
cmp word [es:si+6], 0x13
|
||
je .show_0x13
|
||
|
||
movzx eax, word[es:si]
|
||
cmp ax, -1
|
||
je .@@_end
|
||
mov di, _rs+23
|
||
mov ecx, 10
|
||
mov bl, 4
|
||
call int2str
|
||
movzx eax, word[es:si+2]
|
||
inc di
|
||
mov bl, 4
|
||
call int2str
|
||
|
||
movzx eax, word[es:si+8]
|
||
inc di
|
||
mov bl, 2
|
||
call int2str
|
||
|
||
cmp si, word [cursor_pos]
|
||
jne .next
|
||
;draw cursor
|
||
mov word[ds:_rs+21], '>>'
|
||
mov word[ds:_rs+46], '<<'
|
||
|
||
|
||
|
||
.next:
|
||
push si
|
||
mov si, _rs
|
||
.@@_sh:
|
||
; add to the string pseudographics for scrollbar
|
||
pop bx
|
||
push bx
|
||
mov byte [si+53], ' '
|
||
cmp bx, [scroll_start]
|
||
jb @f
|
||
cmp bx, [scroll_end]
|
||
jae @f
|
||
mov byte [si+53], 0xDB ; filled bar
|
||
@@:
|
||
push bx
|
||
add bx, size_of_step
|
||
cmp bx, [end_cursor]
|
||
jnz @f
|
||
mov byte [si+53], 31 ; 'down arrow' symbol
|
||
@@:
|
||
sub bx, [home_cursor]
|
||
cmp bx, size_of_step*long_v_table
|
||
jnz @f
|
||
mov byte [si+53], 31 ; 'down arrow' symbol
|
||
@@:
|
||
pop bx
|
||
cmp bx, [home_cursor]
|
||
jnz @f
|
||
mov byte [si+53], 30 ; 'up arrow' symbol
|
||
@@:
|
||
call printplain
|
||
pop si
|
||
add si, size_of_step
|
||
|
||
dec bp
|
||
jnz .@@_next_bit
|
||
|
||
.@@_end:
|
||
mov si, _bt
|
||
call printplain
|
||
ret
|
||
.show_0x13:
|
||
push si
|
||
|
||
cmp si, word [cursor_pos]
|
||
jne @f
|
||
mov word[ds:_r1+21], '>>'
|
||
mov word[ds:_r1+50], '<<'
|
||
@@:
|
||
mov si, _r1
|
||
jmp .@@_sh
|
||
.show_0x12:
|
||
push si
|
||
cmp si, word [cursor_pos]
|
||
jne @f
|
||
|
||
mov word[ds:_r2+21], '>>'
|
||
mov word[ds:_r2+45], '<<'
|
||
@@:
|
||
mov si, _r2
|
||
jmp .@@_sh
|
||
|
||
;-----------------------------------------------------------------------------
|
||
;Clear arrea of current video page (0xb800)
|
||
clear_vmodes_table:
|
||
pusha
|
||
; draw frames
|
||
push es
|
||
push 0xb800
|
||
pop es
|
||
mov di, 1444
|
||
xor ax, ax
|
||
mov ah, 1*16+15
|
||
mov cx, 70
|
||
mov bp, 12
|
||
.loop_start:
|
||
rep stosw
|
||
mov cx, 70
|
||
add di, 20
|
||
dec bp
|
||
jns .loop_start
|
||
pop es
|
||
popa
|
||
ret
|
||
|
||
;-----------------------------------------------------------------------------
|
||
|
||
set_vmode:
|
||
push 0 ;0;x1000
|
||
pop es
|
||
|
||
mov si, word [preboot_graph] ;[preboot_graph]
|
||
mov cx, word [es:si+6] ; number of mode
|
||
|
||
|
||
mov ax, word [es:si+0] ; resolution X
|
||
mov bx, word [es:si+2] ; resolution Y
|
||
|
||
|
||
mov word [es:BOOT_X_RES], ax ; resolution X
|
||
mov word [es:BOOT_Y_RES], bx ; resolution Y
|
||
mov word [es:BOOT_VESA_MODE], cx ; number of mode
|
||
|
||
cmp cx, 0x12
|
||
je .mode0x12_0x13
|
||
cmp cx, 0x13
|
||
je .mode0x12_0x13
|
||
|
||
|
||
; cmp byte [s_vesa.ver], '2'
|
||
; jb .vesa12
|
||
|
||
; VESA 2 and Vesa 3
|
||
|
||
mov ax, 0x4f01
|
||
and cx, 0xfff
|
||
mov di, mi;0xa000
|
||
int 0x10
|
||
; LFB
|
||
mov eax, [es:mi.PhysBasePtr];di+0x28]
|
||
mov [es:BOOT_LFB], eax
|
||
; ---- vbe voodoo
|
||
BytesPerLine equ 0x10
|
||
mov ax, [es:di+BytesPerLine]
|
||
mov [es:BOOT_PITCH], ax
|
||
; BPP
|
||
cmp [es:mi.BitsPerPixel], 16
|
||
jne .l0
|
||
cmp [es:mi.GreenMaskSize], 5
|
||
jne .l0
|
||
mov [es:mi.BitsPerPixel], 15
|
||
.l0:
|
||
mov al, byte [es:di+0x19]
|
||
mov [es:BOOT_BPP], al
|
||
jmp .exit
|
||
|
||
.mode0x12_0x13:
|
||
mov byte [es:BOOT_BPP], 32
|
||
or dword [es:BOOT_LFB], 0xFFFFFFFF; 0x800000
|
||
|
||
|
||
; VESA 1.2 PM BANK SWITCH ADDRESS
|
||
|
||
;.vesa12:
|
||
; mov ax, 0x4f0A
|
||
; xor bx, bx
|
||
; int 0x10
|
||
; xor eax, eax
|
||
; xor ebx, ebx
|
||
; mov ax, es
|
||
; shl eax, 4
|
||
; mov bx, di
|
||
; add eax, ebx
|
||
; movzx ebx, word[es:di]
|
||
; add eax, ebx
|
||
; push 0x0000
|
||
; pop es
|
||
; mov [es:0x9014], eax
|
||
.exit:
|
||
ret
|
||
|
||
;=============================================================================
|
||
;=============================================================================
|
||
;=============================================================================
|
||
|