Struct VramRect 

pub struct VramRect {
    pub x: u16,
    pub y: u16,
    pub w: u16,
    pub h: u16,
}

An (x, y, w, h) rectangle in VRAM coordinates.

Construction asserts the rect fits in VRAM. Subsequent code can pass VramRect around without re-checking – it’s by-construction safe.

Fields

x: u16

Top-left X in VRAM pixels (0..VRAM_WIDTH).

y: u16

Top-left Y in VRAM pixels (0..VRAM_HEIGHT).

w: u16

Width in pixels. x + w <= VRAM_WIDTH.

h: u16

Height in pixels. y + h <= VRAM_HEIGHT.

Implementations

impl VramRect

pub const fn new(x: u16, y: u16, w: u16, h: u16) -> Self

Build a rect, asserting it fits in VRAM.

pub const fn pixel_count(self) -> u32

Total pixel count. w * h.

pub const fn overlaps(self, other: Self) -> bool

Do these two rectangles share a pixel?

Const so a game can prove its fixed VRAM layout at compile time. See first_vram_overlap.

Trait Implementations

impl Clone for VramRect

fn clone(&self) -> VramRect

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VramRect

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

Formats the value using the given formatter.

impl PartialEq for VramRect

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for VramRect

impl Eq for VramRect

impl StructuralPartialEq for VramRect