Struct DeviceDecodePlan 

pub struct DeviceDecodePlan { /* private fields */ }

Normalized device decode plan derived from source dimensions and request.

Implementations

impl DeviceDecodePlan

pub fn for_image( source_dims: (u32, u32), request: DeviceDecodeRequest, ) -> Result<Self, J2kError>

Build a normalized plan for an image.

pub fn source_dims(self) -> (u32, u32)

Original image dimensions.

pub fn source_rect(self) -> Rect

Full-resolution source rectangle to read.

pub fn scale(self) -> Downscale

Requested downscale factor.

pub fn output_rect(self) -> Rect

Output rectangle in reduced-resolution coordinates.

pub fn output_dims(self) -> (u32, u32)

Output dimensions in pixels.

pub fn target_resolution(self) -> Option<(u32, u32)>

Target resolution hint for native decoders that accept one.

pub fn is_full_frame(self) -> bool

Return true when the request is an unscaled full-frame decode.

Trait Implementations

impl Clone for DeviceDecodePlan

fn clone(&self) -> DeviceDecodePlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DeviceDecodePlan

impl Debug for DeviceDecodePlan

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

Formats the value using the given formatter.

impl Eq for DeviceDecodePlan

impl PartialEq for DeviceDecodePlan

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DeviceDecodePlan