Struct JpegCapabilityReport 

pub struct JpegCapabilityReport {
    pub request: JpegCapabilityRequest,
    pub info: Info,
    pub device: DeviceBatchSummary,
    pub cpu: JpegBackendEligibility,
    pub owned_cuda: JpegBackendEligibility,
    pub metal_fast: JpegBackendEligibility,
}

Parsed JPEG metadata and backend eligibility for one request.

Fields

request: JpegCapabilityRequest

Original capability request.

info: Info

Public JPEG metadata.

device: DeviceBatchSummary

Device batch summary derived from J2K’s parser/planner.

cpu: JpegBackendEligibility

Portable CPU decode eligibility.

owned_cuda: JpegBackendEligibility

J2K-owned CUDA-kernel eligibility.

metal_fast: JpegBackendEligibility

Metal fast-packet shape eligibility.

Implementations

impl JpegCapabilityReport

pub fn inspect( input: &[u8], request: JpegCapabilityRequest, ) -> Result<Self, JpegError>

Inspect JPEG bytes and report decode-route eligibility.

Errors

Returns JpegError when JPEG header parsing fails or planner validation finds malformed decode-table state. Parseable JPEG classes that J2K has not implemented yet still return a report with rejected backend eligibility.

pub fn for_decoder( decoder: &Decoder<'_>, request: JpegCapabilityRequest, ) -> Self

Build a capability report from an already parsed decoder.

pub fn metal_resident_rgb8_batch_output(&self) -> JpegBackendEligibility

Eligibility for explicit reusable RGB8 Metal batch outputs.

This is narrower than Self::metal_fast: it describes the current caller-owned Metal buffer/texture batch APIs, not every Metal-capable surface decode shape.

pub fn resolve_path(&self, backend: BackendRequest) -> JpegResolvedDecodePath

Resolve a backend request using this report’s eligibility results.

Trait Implementations

impl Clone for JpegCapabilityReport

fn clone(&self) -> JpegCapabilityReport

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JpegCapabilityReport

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

Formats the value using the given formatter.

impl Eq for JpegCapabilityReport

impl PartialEq for JpegCapabilityReport

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JpegCapabilityReport