Enum FilterPassKind 

pub enum FilterPassKind {
    Copy,
    Offset,
    Downscale,
    BlurH,
    BlurV,
    Upscale,
    Colorize,
}

One pass of a filter’s sequence.

The numbering is the wire format the fragment stage switches on; it matches the reference renderer’s own — flood (1) and the drop-shadow composite that reads the layer’s own unfiltered content back (7) are still reserved and still unserved (see drop_shadow’s own doc), and can be added later without renumbering.

Variants

Copy

Copy the source region through unchanged.

Offset

Shift the source region by a drop shadow’s own device-space offset.

Downscale

Halve both axes.

BlurH

Convolve horizontally with the blur kernel.

BlurV

Convolve vertically with the blur kernel.

Upscale

Double both axes.

Colorize

Recolour a blurred, offset alpha mask into a drop shadow’s own premultiplied colour.

Implementations

impl FilterPassKind

pub const fn code(self) -> u32

The value filter_pass_kind carries into the fragment stage.

Trait Implementations

impl Clone for FilterPassKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FilterPassKind

impl Debug for FilterPassKind

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

Formats the value using the given formatter.

impl Eq for FilterPassKind

impl Hash for FilterPassKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FilterPassKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FilterPassKind