114 lines
2.4 KiB
PHP
114 lines
2.4 KiB
PHP
struc VesaInfo
|
|
{
|
|
.Signature dd 'VBE2'
|
|
.Version dw ?
|
|
.OEMNamePtr dd ?
|
|
.Capabilities dd ?
|
|
.VideoModesPtr dw ?
|
|
.CountOf64KBlocks dw ?
|
|
.OEMSoftwareRevision dw ?
|
|
.OEMVendorNamePtr dd ?
|
|
.OEMProductNamePtr dd ?
|
|
.OEMProductRevisionPtr dd ?
|
|
.Reserved db 222 dup(?)
|
|
.OEMData db 256 dup(?)
|
|
}
|
|
|
|
struc VesaModeInfo
|
|
{
|
|
.ModeAttributes dw ?
|
|
.WindowAAttributes db ?
|
|
.WindowBAttributes db ?
|
|
.WindowGranularity dw ?
|
|
.WindowSize dw ?
|
|
.SegmentWindowA dw ?
|
|
.SegmentWindowB dw ?
|
|
.WindowPositioning dd ?
|
|
.BytesPerScanLine dw ?
|
|
|
|
; --
|
|
.Width dw ?
|
|
.Height dw ?
|
|
.WidthChar db ?
|
|
.HeightChar db ?
|
|
.PlanesCount db ?
|
|
.BitsPerPixel db ?
|
|
.BanksCount db ?
|
|
.MemoryModel db ?
|
|
.BankSize db ?
|
|
.ImagePagesCount db ?
|
|
.Reserved db ?
|
|
|
|
.RedMaskSize db ?
|
|
.RedFieldPosition db ?
|
|
.GreenMaskSize db ?
|
|
.GreenFieldPosition db ?
|
|
.BlueMaskSize db ?
|
|
.BlueFieldPosition db ?
|
|
.ReservedMaskSize db ?
|
|
.ReservedMaskPosition db ?
|
|
.DirectColorModeInfo db ?
|
|
|
|
; -- VBE v1.2+
|
|
.Framebuffer dd ?
|
|
.OffScreenMemoryOffset dd ?
|
|
.OffScreenMemorySize dd ?
|
|
.Reserved2 db 206 dup(?)
|
|
}
|
|
|
|
video_setup:
|
|
mov si, szMsgDetectVideo
|
|
call bios_log
|
|
clc
|
|
xchg bx, bx
|
|
xor ax, ax
|
|
mov es, ax
|
|
mov di, vesa_block_buffer
|
|
mov ax, 0x4F00
|
|
int 0x10
|
|
cmp ax, 0x004F
|
|
jne .err
|
|
cmp [vesa_block_buffer.Signature], 'VESA'
|
|
jne .err
|
|
|
|
push [vesa_block_buffer.OEMProductNamePtr]
|
|
push [vesa_block_buffer.OEMVendorNamePtr]
|
|
push [vesa_block_buffer.CountOf64KBlocks]
|
|
push [vesa_block_buffer.OEMNamePtr]
|
|
xor ecx, ecx
|
|
mov cx, [vesa_block_buffer.Version]
|
|
push ecx
|
|
mov si, szMsgVesaInfo
|
|
call bios_log
|
|
|
|
mov di, vesa_info_block_buffer
|
|
mov bx, [vesa_block_buffer.VideoModesPtr]
|
|
mov cx, [bx]
|
|
cmp cx, 0xFFFF
|
|
je .err
|
|
|
|
clc
|
|
mov ax, 0x4F01
|
|
int 0x10
|
|
cmp ax, 0x004F
|
|
jne .err
|
|
|
|
push dword [vesa_info_block_buffer.Framebuffer]
|
|
mov si, szMsgFramebuffer
|
|
call bios_log
|
|
ret
|
|
.err:
|
|
mov si, szMsgErrorVesa
|
|
call bios_log
|
|
stc
|
|
ret
|
|
|
|
align 4
|
|
vesa_block_buffer VesaInfo
|
|
vesa_info_block_buffer VesaModeInfo
|
|
|
|
szMsgVesaInfo db "Version: %x", CR, LF, "OEM Name: %s", CR, LF, "Total Memory: %d", CR, LF, "Vendor name: %s", CR, LF, "Product name: %s", 0
|
|
szMsgDetectVideo db "Fetch video information.", 0
|
|
szMsgFramebuffer db "Fb: 0x%x", 0
|
|
szMsgErrorVesa db "Failed to detect VBE mode", 0
|