um/web
um/web
95
188
Fork 0
Code Issues 9 Pull Requests Packages Releases 5 Wiki Activity

Update qmccache cpp code

Browse Source
This commit is contained in:
xhacker-zzz 2022-11-24 04:54:48 +08:00
parent e51c7b81b1
commit 986e02f182
2 changed files with 2 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/QmcWasm/qmc.hpp
View File

@ -192,10 +192,7 @@ void QmcDecode::DecodeCache()
{
for (size_t i = 0; i < blobData.size(); i++) {
blobData[i] ^= 0xf4;
if (blobData[i] <= 0x3f) blobData[i] = blobData[i] * 4;
else if (blobData[i] <= 0x7f) blobData[i] = (blobData[i] - 0x40) * 4 + 1;
else if (blobData[i] <= 0xbf) blobData[i] = (blobData[i] - 0x80) * 4 + 2;
else blobData[i] = (blobData[i] - 0xc0) * 4 + 3;
blobData[i] = ((blobData[i] & 0b0011_1111) << 2) | (blobData[i] >> 6); // rol 2
}
}

2
src/decrypt/qmccache.ts
View File

@ -22,7 +22,7 @@ export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string)
console.log('qmc: using wasm decoder');
const qmcDecrypted = await DecryptQmcWasm(buffer, raw_ext);
// 若 wasm 失败，降级到 js 再尝试一次
// 若 wasm 失败，使用 js 再尝试一次
if (qmcDecrypted.success) {
musicDecoded = qmcDecrypted.data;
console.log('qmc wasm decoder suceeded');