Enum Equation 

pub enum Equation {
    Additive,
    Subtract,
    ReverseSubtract,
    Min,
    Max,
}

Blending equation. Used to state how blending factors and pixel data should be blended.

Variants

Additive

Additive represents the following blending equation:

blended = src * srcK + dst * dstK

Subtract

Subtract represents the following blending equation:

blended = src * srcK - dst * dstK

ReverseSubtract

Because subtracting is not commutative, ReverseSubtract represents the following additional blending equation:

blended = dst * dstK - src * srcK

Min

Min represents the following blending equation:

blended = min(src, dst)

Max

Max represents the following blending equation:

blended = max(src, dst)

Trait Implementations

impl Clone for Equation

fn clone(&self) -> Equation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Equation

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

Formats the value using the given formatter.

impl PartialEq for Equation

fn eq(&self, other: &Equation) -> 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 Equation

impl Eq for Equation

impl StructuralPartialEq for Equation