Enum ScanOrientation 

#[non_exhaustive]
pub enum ScanOrientation {
    LeftRightTopBottom,
    RightLeftTopBottom,
    TopBottomRightLeft,
    BottomTopRightLeft,
    RightLeftBottomTop,
    LeftRightBottomTop,
    BottomTopLeftRight,
    TopBottomLeftRight,
}

Pixel scan orientation, decoded from bits 2:0 of byte 11 of DisplayID 2.x block 0x21.

Each variant names the fast (pixel) axis followed by the slow (line) axis. For example, LeftRightTopBottom means pixels are painted left-to-right within a line and lines advance top-to-bottom — the conventional raster order.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

LeftRightTopBottom

Left-to-right, top-to-bottom (0b000). Default raster order.

RightLeftTopBottom

Right-to-left, top-to-bottom (0b001).

TopBottomRightLeft

Top-to-bottom, right-to-left (0b010).

BottomTopRightLeft

Bottom-to-top, right-to-left (0b011).

RightLeftBottomTop

Right-to-left, bottom-to-top (0b100).

LeftRightBottomTop

Left-to-right, bottom-to-top (0b101).

BottomTopLeftRight

Bottom-to-top, left-to-right (0b110).

TopBottomLeftRight

Top-to-bottom, left-to-right (0b111).

Implementations

impl ScanOrientation

pub fn from_bits(b: u8) -> Self

Decodes bits 2:0 of byte 11. Upper bits are ignored.

pub fn as_bits(self) -> u8

Returns the 3-bit encoding (bits 2:0).

Trait Implementations

impl Clone for ScanOrientation

fn clone(&self) -> ScanOrientation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScanOrientation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ScanOrientation

fn default() -> ScanOrientation

Returns the “default value” for a type.

impl PartialEq for ScanOrientation

fn eq(&self, other: &ScanOrientation) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ScanOrientation

impl Eq for ScanOrientation

impl StructuralPartialEq for ScanOrientation