Struct MultiPageAtlas

Source

pub struct MultiPageAtlas {
    pub pages: Vec<SdfAtlas>,
    pub page_size: u32,
}

Expand description

An atlas that spans multiple pages when a single texture is not large enough.

Each page is an independent SdfAtlas of the same page_size. Tiles are distributed greedily: when the current page is full a new one is opened.

Fields§

§pages: Vec<SdfAtlas>

Individual atlas pages (same dimensions, different tiles).

§page_size: u32

Pixel size of each page (width == height).

Implementations§

Source §

impl MultiPageAtlas

Source

pub fn pack(tiles: &[SdfTile], page_size: u32, padding: u32) -> Self

Pack tiles across as many pages as necessary.

Tiles that are too large to fit a fresh page on their own are silently dropped to avoid an infinite loop. All other tiles are packed with the Shelf algorithm.

Source

pub fn lookup(&self, glyph_id: u16) -> Option<(usize, &UvRect)>

Find the UV rect for a glyph across all pages.

Returns (page_index, &UvRect) if found, or None.

Auto Trait Implementations§

§

impl UnwindSafe for MultiPageAtlas

Blanket Implementations§

Source §

impl<T> Any for T
where T: 'static + ?Sized,

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T, U> Into for T
where U: From<T>,

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §