Struct LineImagePatternPow2 

pub struct LineImagePatternPow2<F: PatternFilter> { /* private fields */ }

Power-of-2 optimized image pattern for line rendering.

Port of C++ line_image_pattern_pow2<Filter>. Uses bit masking instead of modulo for pattern wrapping.

Implementations

impl<F: PatternFilter> LineImagePatternPow2<F>

pub fn new() -> Self

pub fn with_source<S: ImagePatternSource>(src: &S) -> Self

pub fn create<S: ImagePatternSource>(&mut self, src: &S)

pub fn pattern_width(&self) -> i32

pub fn line_width(&self) -> i32

pub fn width(&self) -> f64

pub fn pixel(&self, p: &mut Rgba8, x: i32, y: i32)

Trait Implementations

impl<F: PatternFilter> ImageLinePattern for LineImagePatternPow2<F>

fn pattern_width(&self) -> i32

Pattern width in subpixel coordinates (for repeating).

fn line_width(&self) -> i32

Line width in subpixel coordinates (half-height of pattern).

fn width(&self) -> f64

Width in floating-point (returns height, matching C++ behavior).

fn pixel(&self, p: &mut Rgba8, x: i32, y: i32)

Get a pixel from the pattern at the given subpixel coordinates.