Enum StencilOperation

#[repr(u8)]
pub enum StencilOperation {
    Keep = 0,
    Zero = 1,
    Replace = 2,
    Increment = 3,
    Decrement = 4,
    Invert = 5,
    IncrementWrap = 6,
    DecrementWrap = 7,
}

Stencil operations.

Variants

Keep = 0

Keep old value. (old_stencil)

Zero = 1

Zero. (0)

Replace = 2

Replace value. (ref)

Increment = 3

Increment value. (old_stencil + 1 saturated to [0, 255])

Decrement = 4

Decrement value. (old_stencil - 1 saturated to [0, 255])

Invert = 5

Invert value. (~old_stencil)

IncrementWrap = 6

Increment value. (old_stencil + 1)

DecrementWrap = 7

Decrement value. (old_stencil - 1)

Trait Implementations

impl Clone for StencilOperation

fn clone(&self) -> StencilOperation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StencilOperation

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

Formats the value using the given formatter.

impl PartialEq for StencilOperation

fn eq(&self, other: &StencilOperation) -> 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 TryFrom<u8> for StencilOperation

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for StencilOperation

impl Eq for StencilOperation

impl StructuralPartialEq for StencilOperation