mincomk/risuai
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add compression-streams-polyfill and integrate CompressionStream support

Browse Source
This commit is contained in:
kwaroran
2024-11-04 15:26:17 +09:00
parent 40b890cd42
commit 911ff7fd8b
3 changed files with 30 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/ts/storage/risuSave.ts
View File

@@ -15,6 +15,18 @@ const magicHeader = new Uint8Array([0, 82, 73, 83, 85, 83, 65, 86, 69, 0, 7]);
const magicCompressedHeader = new Uint8Array([0, 82, 73, 83, 85, 83, 65, 86, 69, 0, 8]);
const magicStreamCompressedHeader = new Uint8Array([0, 82, 73, 83, 85, 83, 65, 86, 69, 0, 9]);
async function checkCompressionStreams(){
if(!CompressionStream){
const {makeCompressionStream} = await import('compression-streams-polyfill/ponyfill');
globalThis.CompressionStream = makeCompressionStream(TransformStream);
}
if(!DecompressionStream){
const {makeDecompressionStream} = await import('compression-streams-polyfill/ponyfill');
globalThis.DecompressionStream = makeDecompressionStream(TransformStream);
}
}
export function encodeRisuSaveLegacy(data:any, compression:'noCompression'|'compression' = 'noCompression'){
let encoded:Uint8Array = packr.encode(data)
if(compression === 'compression'){
@@ -33,6 +45,7 @@ export function encodeRisuSaveLegacy(data:any, compression:'noCompression'|'comp
}
export async function encodeRisuSave(data:any) {
await checkCompressionStreams()
let encoded:Uint8Array = packr.encode(data)
const cs = new CompressionStream('gzip');
const writer = cs.writable.getWriter();
@@ -55,6 +68,7 @@ export async function decodeRisuSave(data:Uint8Array){
data = data.slice(magicHeader.length)
return unpackr.decode(data)
case "stream":{
await checkCompressionStreams()
data = data.slice(magicStreamCompressedHeader.length)
const cs = new DecompressionStream('gzip');
const writer = cs.writable.getWriter();