VbeModeInfo Struct Reference

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)

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The documentation for this struct was generated from the following file:

• device/graphics.cc