64 lines
1.5 KiB
Rust
64 lines
1.5 KiB
Rust
//! Wad file entry type.
|
|
|
|
use crate::durandal::{bin::usize_from_u32, err::*};
|
|
use super::chnk;
|
|
use std::collections::BTreeMap;
|
|
|
|
/// Reads all entries in a `Wad`.
|
|
pub fn read(b: &[u8],
|
|
old_wad: bool,
|
|
old_dat: bool,
|
|
siz_app: usize,
|
|
siz_ent: usize,
|
|
siz_cnk: usize)
|
|
-> ResultS<EntryMap>
|
|
{
|
|
read_data! {
|
|
endian: BIG, buf: b, size: 128, start: 0, data {
|
|
let dirofs = u32[72] usize;
|
|
let numents = u16[76] usize;
|
|
}
|
|
}
|
|
|
|
let mut entries = EntryMap::new();
|
|
let mut p = dirofs;
|
|
|
|
for i in 0..numents {
|
|
read_data! {
|
|
endian: BIG, buf: b, size: siz_ent, start: p, data {
|
|
let offset = u32[0] usize;
|
|
let size = u32[4] usize;
|
|
let index = u16[8];
|
|
}
|
|
}
|
|
|
|
let index = if old_wad {i as u16} else {index};
|
|
|
|
let chunks = chnk::read(&b[offset..offset + size], old_dat, siz_cnk)?;
|
|
let appdata = b[p..p + siz_app].to_vec();
|
|
|
|
entries.insert(index, Entry{chunks, appdata});
|
|
|
|
p += siz_ent + siz_app;
|
|
}
|
|
|
|
Ok(entries)
|
|
}
|
|
|
|
/// An entry containing chunks and application-specific data.
|
|
#[cfg_attr(feature = "serde_obj", derive(serde::Serialize))]
|
|
#[derive(Debug, Eq, PartialEq)]
|
|
pub struct Entry
|
|
{
|
|
/// All of the chunks in this `Entry`.
|
|
pub chunks: Vec<chnk::Chunk>,
|
|
|
|
/// The application specific data for this Entry.
|
|
pub appdata: Vec<u8>,
|
|
}
|
|
|
|
/// A map of indexed entries.
|
|
pub type EntryMap = BTreeMap<u16, Entry>;
|
|
|
|
// EOF
|