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game lump/static props

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This commit is contained in:
Robin Appelman 2022-03-03 00:37:09 +01:00
commit 15c1c4e6eb
9 changed files with 423 additions and 50 deletions
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28
src/bspfile.rs
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@ -1,7 +1,6 @@
use crate::*;
use binrw::io::Cursor;
use binrw::BinReaderExt;
use lzma_rs::decompress::{Options, UnpackedSize};
use std::borrow::Cow;
pub struct BspFile<'a> {
@ -57,32 +56,7 @@ impl<'a> BspFile<'a> {
Ok(match lump.ident {
0 => Cow::Borrowed(raw_data),
_ => {
let mut data: Vec<u8> = Vec::with_capacity(lump.ident as usize);
let mut cursor = Cursor::new(raw_data);
if b"LZMA" != &<[u8; 4]>::read(&mut cursor)? {
return Err(BspError::LumpDecompressError(
lzma_rs::error::Error::LzmaError("Invalid lzma header".into()),
));
}
let actual_size: u32 = cursor.read_le()?;
let _lzma_size: u32 = cursor.read_le()?;
lzma_rs::lzma_decompress_with_options(
&mut cursor,
&mut data,
&Options {
unpacked_size: UnpackedSize::UseProvided(Some(actual_size as u64)),
allow_incomplete: false,
memlimit: None,
},
)
.map_err(BspError::LumpDecompressError)?;
if data.len() != lump.ident as usize {
return Err(BspError::UnexpectedUncompressedLumpSize {
got: data.len() as u32,
expected: lump.ident,
});
}
let data = lzma_decompress_with_header(raw_data, lump.ident as usize)?;
Cow::Owned(data)
}
})