Enum FragmentImage 

pub enum FragmentImage {
    None,
    Atlas([u32; 4]),
    Texture {
        index: u32,
        uv: [u32; 4],
    },
}

Where a fragment’s image row lands for one frame: nowhere, in the glyph atlas the fragment pipeline already has bound, or in a texture of the image’s own that the backend binds in the atlas’s place for that one quad — the same swap a QuadKind::Texture quad asks for. The core decides between the last two on the image’s backing, so a backend meets the same two cases it already draws.

Variants

None

No image row: kui_sample returns transparent black.

Atlas([u32; 4])

The image sits in the atlas at this texel rect, [x, y, w, h].

Texture

The image has a texture of its own: index names the entry of DisplayList::textures (and texture_pixels) that carries it, uv is the texel rect in that texture — the whole image.

Fields

index: u32

uv: [u32; 4]

Implementations

impl FragmentImage

pub fn uv(self) -> [u32; 4]

The texel rect the shader reads as FragmentIn::image; zero with no image.

Trait Implementations

impl Clone for FragmentImage

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 FragmentImage

impl Debug for FragmentImage

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

Formats the value using the given formatter.

impl Default for FragmentImage

fn default() -> Self

Returns the “default value” for a type.

impl Eq for FragmentImage

impl Hash for FragmentImage

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 FragmentImage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FragmentImage