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switch to streaming WASM loading, fixes #814

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El RIDO 2021-06-20 08:43:44 +02:00
parent 5f2daa5cd6
commit a4a32f6b9e
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GPG key ID: 0F5C940A6BD81F92
3 changed files with 26 additions and 35 deletions
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57
js/zlib-1.2.11.js
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@ -1,6 +1,6 @@
'use strict';
(function() {
(function () {
let ret;
async function initialize() {
@ -23,16 +23,7 @@
_abort: errno => { console.error(`Error: ${errno}`) },
_grow: () => { },
};
let buff;
if (typeof fetch === 'undefined') {
buff = fs.readFileSync('zlib-1.2.11.wasm');
} else {
const resp = await fetch('js/zlib-1.2.11.wasm');
buff = await resp.arrayBuffer();
}
const module = await WebAssembly.compile(buff);
const ins = await WebAssembly.instantiate(module, { env });
const ins = await WebAssembly.instantiateStreaming(fetch('js/zlib-1.2.11.wasm'), { env });
const srcPtr = ins.exports._malloc(CHUNK_SIZE);
const dstPtr = ins.exports._malloc(CHUNK_SIZE);
@ -116,28 +107,28 @@
}
ret = {
inflate(rawDeflateBuffer) {
const rawInf = new RawInf();
for (let offset = 0; offset < rawDeflateBuffer.length; offset += CHUNK_SIZE) {
const end = Math.min(offset + CHUNK_SIZE, rawDeflateBuffer.length);
const chunk = rawDeflateBuffer.subarray(offset, end);
rawInf.inflate(chunk);
}
const ret = rawInf.getBuffer();
rawInf.destroy();
return ret;
},
deflate(rawInflateBuffer) {
const rawDef = new RawDef();
for (let offset = 0; offset < rawInflateBuffer.length; offset += CHUNK_SIZE) {
const end = Math.min(offset + CHUNK_SIZE, rawInflateBuffer.length);
const chunk = rawInflateBuffer.subarray(offset, end);
rawDef.deflate(chunk, rawInflateBuffer.length <= offset + CHUNK_SIZE);
}
const ret = rawDef.getBuffer();
rawDef.destroy();
return ret;
},
inflate(rawDeflateBuffer) {
const rawInf = new RawInf();
for (let offset = 0; offset < rawDeflateBuffer.length; offset += CHUNK_SIZE) {
const end = Math.min(offset + CHUNK_SIZE, rawDeflateBuffer.length);
const chunk = rawDeflateBuffer.subarray(offset, end);
rawInf.inflate(chunk);
}
const ret = rawInf.getBuffer();
rawInf.destroy();
return ret;
},
deflate(rawInflateBuffer) {
const rawDef = new RawDef();
for (let offset = 0; offset < rawInflateBuffer.length; offset += CHUNK_SIZE) {
const end = Math.min(offset + CHUNK_SIZE, rawInflateBuffer.length);
const chunk = rawInflateBuffer.subarray(offset, end);
rawDef.deflate(chunk, rawInflateBuffer.length <= offset + CHUNK_SIZE);
}
const ret = rawDef.getBuffer();
rawDef.destroy();
return ret;
},
}
return ret;