Struct ScaleKernel 

pub struct ScaleKernel;

GPU-style image scaling kernel (CPU simulation via Rayon).

Works with packed RGBA (4 bytes / pixel) and planar single-channel data.

Implementations

impl ScaleKernel

pub fn scale_plane( src: &[u8], src_w: u32, src_h: u32, dst: &mut [u8], dst_w: u32, dst_h: u32, filter: ScaleFilter, ) -> Result<ScaleStats, ScaleError>

Scale a single-channel (planar) image using the specified filter.

Errors

Returns ScaleError if any buffer or dimension is invalid.

pub fn scale_rgba( src: &[u8], src_w: u32, src_h: u32, dst: &mut [u8], dst_w: u32, dst_h: u32, filter: ScaleFilter, ) -> Result<ScaleStats, ScaleError>

Scale a packed RGBA image.

Errors

Returns ScaleError if buffer or dimension validation fails.

pub fn scale_yuv420( y_src: &[u8], cb_src: &[u8], cr_src: &[u8], src_w: u32, src_h: u32, dst_w: u32, dst_h: u32, filter: ScaleFilter, ) -> Result<(Vec<u8>, Vec<u8>, Vec<u8>), ScaleError>

Scale a planar YUV 4:2:0 image.

Cb/Cr planes are at half resolution in each dimension. Returns scaled (Y, Cb, Cr) planes.

Errors

Returns ScaleError on dimension or buffer validation failure.

pub fn scale_yuv422( y_src: &[u8], cb_src: &[u8], cr_src: &[u8], src_w: u32, src_h: u32, dst_w: u32, dst_h: u32, filter: ScaleFilter, ) -> Result<(Vec<u8>, Vec<u8>, Vec<u8>), ScaleError>

Scale a planar YUV 4:2:2 image.

Cb/Cr planes are at half width, full height. Returns scaled (Y, Cb, Cr) planes.

Errors

Returns ScaleError on validation failure.

Trait Implementations

impl Clone for ScaleKernel

fn clone(&self) -> ScaleKernel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScaleKernel

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

Formats the value using the given formatter.

impl Default for ScaleKernel

fn default() -> ScaleKernel

Returns the “default value” for a type.