Struct ScanlineStorageAa 

pub struct ScanlineStorageAa { /* private fields */ }

Anti-aliased scanline storage.

Port of C++ scanline_storage_aa<T>. Stores rendered scanlines for later replay, boolean operations, or serialization.

Implementations

impl ScanlineStorageAa

pub fn new() -> Self

pub fn prepare(&mut self)

Prepare for new rendering (clear all stored data).

pub fn render_scanline_u8(&mut self, sl: &ScanlineU8)

Store a scanline from a ScanlineU8 (unpacked, per-pixel covers).

pub fn render_scanline_p8(&mut self, sl: &ScanlineP8)

Store a scanline from a ScanlineP8 (packed, may have solid spans).

pub fn rewind_scanlines(&mut self) -> bool

Reset the scanline iteration pointer.

pub fn sweep_scanline<SL: Scanline>(&mut self, sl: &mut SL) -> bool

Sweep the next stored scanline into an output scanline container. Returns false when all scanlines have been consumed.

pub fn min_x(&self) -> i32

pub fn min_y(&self) -> i32

pub fn max_x(&self) -> i32

pub fn max_y(&self) -> i32

pub fn num_scanlines(&self) -> usize

pub fn scanline_y(&self, idx: usize) -> i32

Get the Y coordinate for a stored scanline by index.

pub fn scanline_num_spans(&self, idx: usize) -> u32

Get the number of spans for a stored scanline by index.

pub fn embedded_spans( &self, sl_idx: usize, ) -> impl Iterator<Item = EmbeddedSpan<'_>> + '_

Iterate over embedded scanline spans for boolean algebra. Returns an iterator of (x, len, covers_slice) tuples.

Trait Implementations

impl Default for ScanlineStorageAa

fn default() -> Self

Returns the “default value” for a type.