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Add write_data_block_patch to write patch data blocks

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It's only writing uncompressed blocks at the moment, though.
This commit is contained in:
Joshua Goins 2024-06-29 12:37:54 -04:00
parent ee5a484730
commit 9fde5472d8
1 changed files with 17 additions and 2 deletions
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19
src/sqpack.rs
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@ -1,9 +1,9 @@
// SPDX-FileCopyrightText: 2023 Joshua Goins <josh@redstrate.com> // SPDX-FileCopyrightText: 2023 Joshua Goins <josh@redstrate.com>
// SPDX-License-Identifier: GPL-3.0-or-later // SPDX-License-Identifier: GPL-3.0-or-later
use std::io::{Read, Seek, SeekFrom}; use std::io::{Read, Seek, SeekFrom, Write};
use binrw::BinRead; use binrw::{BinRead, BinWrite};
use crate::compression::no_header_decompress; use crate::compression::no_header_decompress;
use crate::dat::{BlockHeader, CompressionMode}; use crate::dat::{BlockHeader, CompressionMode};
@ -74,3 +74,18 @@ pub fn read_data_block_patch<T: Read + Seek>(mut buf: T) -> Option<Vec<u8>> {
} }
} }
} }
pub fn write_data_block_patch<T: Write + Seek>(mut writer: T, data: Vec<u8>) {
// This only adds uncompressed data for now, to simplify implementation
// TODO: write compressed blocks
let block_header = BlockHeader {
size: 128, // TODO: i have no idea what this value is from
compression: CompressionMode::Uncompressed {
file_size: data.len() as i32,
},
};
block_header.write(&mut writer);
data.write(&mut writer);
}