Struct DecodedImage 

pub struct DecodedImage {
    pub width: u32,
    pub height: u32,
    pub data: Arc<Vec<u8>>,
}

Decoded raster image data (RGBA8, row-major).

The pixel buffer is wrapped in Arc<Vec<u8>> so that cloning a DecodedImage is a cheap reference-count bump (~256 KiB per tile is never memcpy’d between engine frames).

Fields

width: u32

Image width in pixels.

height: u32

Image height in pixels.

data: Arc<Vec<u8>>

Raw RGBA8 pixel data, row-major.

Shared via Arc – immutable after decode.

Implementations

impl DecodedImage

pub fn expected_len(&self) -> Option<usize>

Return the expected RGBA8 byte length for this image.

Returns None if the dimensions overflow usize.

pub fn byte_len(&self) -> usize

Return the actual byte length of the shared pixel buffer.

pub fn is_empty(&self) -> bool

Return true if the image has zero dimensions or zero bytes.

pub fn validate_rgba8(&self) -> Result<(), TileError>

Validate that the payload is well-formed RGBA8 data.

pub fn build_mip_chain_rgba8(&self) -> Result<RasterMipChain, TileError>

Generate a full RGBA8 mip chain from this image.

RGB channels are downsampled in linear light and with premultiplied-alpha accumulation so oblique minification stays sharper and more stable than single-level sampling.

Trait Implementations

impl Clone for DecodedImage

fn clone(&self) -> DecodedImage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DecodedImage

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

Formats the value using the given formatter.