Struct Pixmap 

pub struct Pixmap { /* private fields */ }

A CPU pixel buffer in straight (non-premultiplied) RGBA8, row-major, tightly packed (stride == width * 4).

This is the payload handed to a Surface for display. It is what the software backend produces today; a future GPU backend may bypass it.

Implementations

impl Pixmap

pub fn new(size: PhysicalSize) -> Self

Allocate a fully transparent pixmap of size.

pub fn from_rgba8(size: PhysicalSize, data: Vec<u8>) -> Self

Wrap existing RGBA8 bytes. Panics if data.len() != width*height*4.

pub fn size(&self) -> PhysicalSize

pub fn stride(&self) -> usize

Bytes per row.

pub fn as_bytes(&self) -> &[u8]

pub fn as_bytes_mut(&mut self) -> &mut [u8]

pub fn blit(&mut self, src: &Pixmap, dst_x: u32, dst_y: u32)

Copy src into this pixmap with its top-left at (dst_x, dst_y), clipped to this pixmap’s bounds. A straight row-by-row replace (no alpha blend) — used to composite an opaque area-repaint render (see SoftwareRenderer::render_region) into the retained full-window buffer.

pub fn pixel(&self, x: u32, y: u32) -> Option<[u8; 4]>

The four bytes [r, g, b, a] at (x, y), or None if out of bounds.

Trait Implementations

impl Clone for Pixmap

fn clone(&self) -> Pixmap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pixmap

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

Formats the value using the given formatter.