Struct Linear 

pub struct Linear { /* private fields */ }

A per-channel linear map, value * a + b (sharp’s linear). b is in 8-bit units, as in sharp: an offset of 255 is the full range, at any depth. Alpha is untouched.

Implementations

impl Linear

pub fn new(a: f32, b: f32) -> Result<Linear, PixelsError>

The same a and b for every colour channel.

Errors

Returns PixelsError::InvalidArgument unless both are finite.

pub fn per_channel(a: [f32; 3], b: [f32; 3]) -> Result<Linear, PixelsError>

A separate a and b for red, green and blue. Greyscale images use the first of each.

Errors

As Linear::new.

Trait Implementations

impl Clone for Linear

fn clone(&self) -> Linear

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Linear

impl Debug for Linear

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

Formats the value using the given formatter.

impl Op for Linear

fn name(&self) -> &'static str

A short, stable name for this op, used in diagnostics.

fn rescaled(&self) -> Option<Arc<dyn Op>>

A copy of this op fit for a graph rebuilt at a reduced input resolution, or None if this op must not be.

fn output_descriptor( &self, inputs: &[ImageDescriptor], ) -> Result<ImageDescriptor, PixelsError>

Compute the output shape from the input shapes.

fn input_regions( &self, output: Region, _inputs: &[ImageDescriptor], ) -> Result<Vec<Region>, PixelsError>

The input regions needed to produce output.

fn compute( &self, inputs: &[Tile<'_>], output: &mut TileMut<'_>, ) -> Result<(), PixelsError>

Fill output from inputs — the kernel entry point.

fn arity(&self) -> usize

The number of inputs this op consumes.

fn access_pattern(&self) -> AccessPattern

How this op reads its inputs; drives tile negotiation (ADR-0003).

impl PartialEq for Linear

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Linear