PsPackBitsCodec class abstract final

Encodes and decodes the PackBits run-length format used by Photoshop.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

decodeRow(Uint8List input, {required int decodedLength}) → Uint8List

Decodes one PackBits input row into exactly decodedLength bytes.

decodeRows(Uint8List input, {required int rowBytes, required int rowCount, bool wideRowLengths = false}) → Uint8List

Decodes a complete table-prefixed sequence of PackBits rows.

decodeRowsPrefix(Uint8List input, {required int rowBytes, required int rowCount, bool wideRowLengths = false}) → ({int bytesRead, Uint8List data})

Decodes table-prefixed rows from the beginning of input.

decodeRowsReader(PsBinaryReader reader, {required int rowBytes, required int rowCount, bool wideRowLengths = false}) → Uint8List

Decodes table-prefixed rows at the current reader position.

encodeRow(Uint8List row) → Uint8List

Encodes one row with the PackBits run-length algorithm.

encodeRowInto(Uint8List row, Uint8List output, int start) → int

Encodes row into output at start and returns the next write offset.

encodeRows(Uint8List input, {required int rowBytes, required int rowCount, bool wideRowLengths = false}) → Uint8List

Encodes rows and prefixes their 16-bit or 32-bit encoded lengths.

maxEncodedLength(int rowBytes) → int

Returns the largest encoding a row of rowBytes can produce.