Enum ScpCompressionAlgorithm 

pub enum ScpCompressionAlgorithm {
    None,
    Rle,
    Lz77 {
        window_size: usize,
    },
    Delta {
        base_value: u8,
    },
    Xor {
        key: Vec<u8>,
    },
}

Compression/transform algorithm used by a pipeline stage.

All algorithms are implemented in pure Rust with no external dependencies.

Variants

None

Identity pass-through — data is stored unchanged.

Rle

Run-Length Encoding: encodes consecutive repeated bytes as (count: u8, byte: u8) pairs. Count is clamped to 255.

Lz77

LZ77-style sliding-window compressor.

Emits either a literal token (0x00, byte) or a back-reference token (0x01, offset_lo, offset_hi, length) when a repeated sequence of length ≥ 3 is found in the sliding window.

Fields

window_size: usize

Look-back window size in bytes (e.g. 4096).

Delta

Delta encoding: each byte is replaced by its difference from the previous byte. The first byte is XOR-ed with base_value.

Fields

base_value: u8

Seed value XOR-ed with the first byte before differencing.

Xor

XOR-cipher transform: each byte is XOR-ed with the cycling key.

Useful as a lightweight obfuscation or entropy-normalization pass before a heavier compressor.

Fields

key: Vec<u8>

Key bytes cycled over the input.

Implementations

impl ScpCompressionAlgorithm

pub fn name(&self) -> String

Return a stable, human-readable name for this algorithm.

Trait Implementations

impl Clone for ScpCompressionAlgorithm

fn clone(&self) -> ScpCompressionAlgorithm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScpCompressionAlgorithm

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

Formats the value using the given formatter.

impl Eq for ScpCompressionAlgorithm

impl PartialEq for ScpCompressionAlgorithm

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ScpCompressionAlgorithm