Struct ChunkUse 

pub struct ChunkUse {
    pub used: Option<u64>,
    pub tail: &'static str,
    pub note: Option<String>,
    pub past_count: bool,
    pub covered: bool,
    pub unread: Option<&'static str>,
    pub unknown: Option<&'static str>,
}

How much of one strip or tile the decoder reads.

Fields

used: Option<u64>

Leading bytes the decoder reads; the rest of the declared length is a Dropped tail. None when the end is not found (compressed data without a count-only reader).

tail: &'static str

What the tail is, for its detail.

note: Option<String>

A remark for the chunk’s detail.

past_count: bool

The decoder reads used bytes whatever the declared length, so a shorter declared length is read past (image-tiff reads uncompressed data by row size).

covered: bool

Another chunk’s extent already covers this one (a decoder reading every row from the first strip): not listed on its own.

unread: Option<&'static str>

The decoder never reads this chunk: listed alone as Skipped, why.

unknown: Option<&'static str>

What the decoder reads of this chunk was not worked out (a budget ran out): listed alone as Unknown, why.

Trait Implementations

impl Clone for ChunkUse

fn clone(&self) -> ChunkUse

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChunkUse

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

Formats the value using the given formatter.

impl Default for ChunkUse

fn default() -> ChunkUse

Returns the “default value” for a type.