Mode Information of the Vesa BIOS Extension More...

Public Types
enum	ModeAttributes : uint16_t { SUPPORTED = 1 << 0 , TTY = 1 << 2 , COLOR = 1 << 3 , GRAPHICS = 1 << 4 , VGA = 1 << 5 , VGA_PAGED = 1 << 6 , LFB = 1 << 7 }

enum	MemoryModel : uint8_t { TEXT_MODE = 0 , CGA = 1 , HERCULES = 2 , PLANAR = 3 , PACKED = 4 , NON_CHAIN_4 = 5 , DIRECT_COLOR = 6 , YUV = 7 }

enum	DirectColorAttributes : uint8_t { DYNAMIC_COLOR_RAMP = 1 << 0 , USABLE_BITS = 1 << 1 }

Public Attributes
uint16_t	mode_attributes

struct {

uint8_t	attrib_a

uint8_t	attrib_b

uint16_t	granularity

uint16_t	size

uint16_t	segment_a

uint16_t	segment_b

uint32_t	func_ptr

}	win

uint16_t	pitch
	Bytes per scan line.

uint16_t	width
	Horizontal resolution in pixels (GRAPHICS) or characters.

uint16_t	height
	Vertical resolution in pixels (GRAPHICS) or characters.

uint8_t	char_width
	Character cell width in pixels (deprecated)

uint8_t	char_height
	Character cell height in pixels (deprecated)

uint8_t	planes
	Number of memory planes.

uint8_t	bpp
	Bits per pixel.

uint8_t	banks
	Number of banks.

enum VbeModeInfo::MemoryModel	memory_model
	Memory model type.

uint8_t	bank_size
	Bank size in KB.

uint8_t	image_pages
	Number of images.

uint8_t	reserved
	Reserved for page function.

uint8_t	bits_red
	Size of direct color red mask in bits.

uint8_t	offset_red
	Bit position of lsb of red mask.

uint8_t	bits_green
	Size of direct color green mask in bits.

uint8_t	offset_green
	Bit position of lsb of green mask.

uint8_t	bits_blue
	Size of direct color blue mask in bits.

uint8_t	offset_blue
	Bit position of lsb of blue mask.

uint8_t	bits_rsv
	Size of direct color reserved mask in bits.

uint8_t	offset_rsv
	Bit position of lsb of reserved mask.

uint8_t	directcolor_attributes
	direct color mode attributes

uint32_t	address
	physical address for flat memory frame buffer

uint32_t	offscreen_memory_offset
	reserved

uint16_t	offscreen_memory_size
	reserved

Detailed Description

Mode Information of the Vesa BIOS Extension

See also: Vesa BIOS Extension ModeInfoBlock struc

Member Enumeration Documentation

◆ ModeAttributes

enum VbeModeInfo::ModeAttributes : uint16_t

Enumerator
SUPPORTED	Mode supported by hardware configuration.
TTY	TTY Output functions supported by BIOS.
COLOR	Color mode (otherwise monochrome)
GRAPHICS	Graphic mode (otherwise text)
VGA	VGA compatible.
VGA_PAGED	VGA compatible windowed memory mode is available.
LFB	Linear frame buffer mode is available.

◆ MemoryModel

enum VbeModeInfo::MemoryModel : uint8_t

Enumerator
TEXT_MODE	Text mode.
CGA	CGA graphics.
HERCULES	Hercules graphics.
PLANAR	Planar.
PACKED	Packed pixel.
NON_CHAIN_4	Non-chain 4, 256 color.
DIRECT_COLOR	Direct Color.
YUV	YUV.

◆ DirectColorAttributes

enum VbeModeInfo::DirectColorAttributes : uint8_t

Enumerator
DYNAMIC_COLOR_RAMP	Programmable (otherwise fixed) color ramp.
USABLE_BITS	Bits in reserved mask are usable (otherwise reserved)

Member Data Documentation

◆ mode_attributes

uint16_t VbeModeInfo::mode_attributes

◆ [struct]

struct { ... } VbeModeInfo::win

◆ pitch

uint16_t VbeModeInfo::pitch

Bytes per scan line.

◆ width

uint16_t VbeModeInfo::width

Horizontal resolution in pixels (GRAPHICS) or characters.

◆ height

uint16_t VbeModeInfo::height

Vertical resolution in pixels (GRAPHICS) or characters.

◆ char_width

uint8_t VbeModeInfo::char_width

Character cell width in pixels (deprecated)

◆ char_height

uint8_t VbeModeInfo::char_height

Character cell height in pixels (deprecated)

◆ planes

uint8_t VbeModeInfo::planes

Number of memory planes.

◆ bpp

uint8_t VbeModeInfo::bpp

Bits per pixel.

◆ banks

uint8_t VbeModeInfo::banks

Number of banks.

◆ memory_model

enum VbeModeInfo::MemoryModel VbeModeInfo::memory_model

Memory model type.

◆ bank_size

uint8_t VbeModeInfo::bank_size

Bank size in KB.

◆ image_pages

uint8_t VbeModeInfo::image_pages

Number of images.

◆ reserved

uint8_t VbeModeInfo::reserved

Reserved for page function.

◆ bits_red

uint8_t VbeModeInfo::bits_red

Size of direct color red mask in bits.

◆ offset_red

uint8_t VbeModeInfo::offset_red

Bit position of lsb of red mask.

◆ bits_green

uint8_t VbeModeInfo::bits_green

Size of direct color green mask in bits.

◆ offset_green

uint8_t VbeModeInfo::offset_green

Bit position of lsb of green mask.

◆ bits_blue

uint8_t VbeModeInfo::bits_blue

Size of direct color blue mask in bits.

◆ offset_blue

uint8_t VbeModeInfo::offset_blue

Bit position of lsb of blue mask.

◆ bits_rsv

uint8_t VbeModeInfo::bits_rsv

Size of direct color reserved mask in bits.

◆ offset_rsv

uint8_t VbeModeInfo::offset_rsv

Bit position of lsb of reserved mask.

◆ directcolor_attributes

uint8_t VbeModeInfo::directcolor_attributes

direct color mode attributes

◆ address

uint32_t VbeModeInfo::address

physical address for flat memory frame buffer

◆ offscreen_memory_offset

uint32_t VbeModeInfo::offscreen_memory_offset

reserved

◆ offscreen_memory_size

uint16_t VbeModeInfo::offscreen_memory_size