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implement upkr unpacker in wasm, use to load compressed base

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Dennis Ranke
2021-11-20 23:36:16 +01:00
parent f7e3202c39
commit 93b2bb60bd
6 changed files with 149 additions and 19 deletions
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12
src/lib.rs
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@@ -178,12 +178,20 @@ impl Loader {
fn load(&mut self, module_data: &[u8]) -> Result<Vec<u8>> {
let memory = self.memory.data_mut(&mut self.store);
let compressed_base_module = include_bytes!("../uw8-tool/base.upk");
memory[..compressed_base_module.len()].copy_from_slice(compressed_base_module);
let base_end = self.instance.get_typed_func::<(i32, i32), i32, _>(&mut self.store, "uncompress")?.call(&mut self.store, (0, 0x84000))? as u32 as usize;
let memory = self.memory.data_mut(&mut self.store);
let base_module = memory[0x84000..base_end].to_vec();
let base_start = module_data.len();
memory[..base_start].copy_from_slice(module_data);
let base_module = include_bytes!("../uw8-tool/base1.wasm");
let base_end = base_start + base_module.len();
memory[base_start..base_end].copy_from_slice(base_module);
memory[base_start..base_end].copy_from_slice(&base_module);
let load_uw8 = self
.instance