Support WebAssembly

Author: redstrate

Cargo.toml

@@ -60,7 +60,7 @@ binrw = { version = "0.14", features = ["std"], default-features = false }
 tracing = { version = "0.1", features = ["std"], default-features = false }
 
 # used for zlib compression in sqpack files
-libz-ng-sys = { version = "1.1"  }
+libz-sys = { version = "1.1" }
 
 # nice to have features rust is lacking at the moment
 modular-bitfield = "0.11"

build.rs

@@ -3,6 +3,6 @@
 
 fn main() {
     // Windows doesn't ship pkgconfig files, typically. At least in our build system.
-    #[cfg(not(target_os = "windows"))]
+    #[cfg(all(not(target_os = "windows"), not(target_family = "wasm")))]
     system_deps::Config::new().probe().unwrap();
 }

src/compression.rs

@@ -3,7 +3,7 @@
 
 use std::ptr::null_mut;
 
-use libz_ng_sys::*;
+use libz_sys::*;
 
 // This module's functions are licensed under MIT from https://github.com/rust-lang/flate2-rs
 mod flate2_zallocation {

src/crc.rs

@@ -1,7 +1,7 @@
 // SPDX-FileCopyrightText: 2023 Joshua Goins <josh@redstrate.com>
 // SPDX-License-Identifier: GPL-3.0-or-later
 
-use libz_ng_sys::z_off_t;
+use libz_sys::z_off_t;
 use std::ops::{Add, AddAssign, BitXor, BitXorAssign};
 
 /// CRC used for filepath hashes in index file
@@ -45,11 +45,11 @@ impl Jamcrc {
 }
 
 fn crc32(crc: u32, s: &[u8]) -> u32 {
-    unsafe { libz_ng_sys::crc32(crc, s.as_ptr(), s.len() as u32) as u32 }
+    unsafe { libz_sys::crc32(crc.into(), s.as_ptr(), s.len() as u32) as u32 }
 }
 
 fn crc32_combine(crc1: u32, crc2: u32, len2: usize) -> u32 {
-    unsafe { libz_ng_sys::crc32_combine(crc1, crc2, len2 as z_off_t) as u32 }
+    unsafe { libz_sys::crc32_combine(crc1.into(), crc2.into(), len2 as z_off_t) as u32 }
 }
 
 /// CRC used for shader keys