one-rust/one-rust/src/one/mod.rs

66 lines
2.0 KiB
Rust

use binread::{FilePtr, NullString};
use prs_rust::prs;
use std::collections::BTreeMap;
use std::path::PathBuf;
use std::ffi::OsString;
use std::os::unix::ffi::OsStringExt;
use std::fmt::Formatter;
#[derive(BinRead)]
#[br(little, magic = b"ThisIsOneFile\0\0\0")]
pub struct JodOne {
// usually 0xCC... format version maybe?
// but i've seen 0xCA in Test04/disp/Test04.one and 0xCB in Test05/disp/stg2010_sun.one
_unknown1: u32,
// usually "Default" or "landData"
#[br(pad_size_to = 32)]
pub category: NullString,
#[br(pad_after = 128)]
pub count: u32,
#[br(count = count)]
pub entries: Vec<JodOneEntry>
}
#[derive(BinRead)]
#[br(little, assert(id_again == id))]
pub struct JodOneEntry {
pub _unknown1: u32,
pub id: u32,
pub size_cmp: u32,
pub _unknown2: u32,
pub size_dec: u32,
pub id_again: u32,
#[br(count = size_cmp)]
pub data: FilePtr<u32, Vec<u8>>,
#[br(pad_size_to = 188)]
pub name: NullString,
}
impl std::fmt::Debug for JodOneEntry {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
write!(f, "JodOneEntry{{id: {}, name: {:?}, size_cmp: {}, size_dec: {}, ..}}", self.id, self.name.to_string(), self.size_cmp, self.size_dec)
}
}
impl JodOne {
pub fn unpack(self) -> BTreeMap<PathBuf, Vec<u8>> {
let mut map = BTreeMap::new();
for entry in self.entries {
debug!("{:?}", entry);
let os_string = OsString::from_vec(entry.name.0.into_iter()
.map(|c| if char::from(c) == '\\' { std::path::MAIN_SEPARATOR as u8 } else { c })
.collect());
let key = PathBuf::from(os_string);
if entry.size_dec == 0 {
map.insert(key, entry.data.into_inner());
} else {
// TODO: improve prs crate to use size_dec hint?
let dec_buf = prs::decompress::Decompressor::new(&*entry.data).decompress();
map.insert(key, dec_buf);
}
}
map
}
}