| 1234567891011121314151617181920212223242526272829303132333435363738 |
- import { inflateInit, inflate, inflateReset } from "../vendor/pako/lib/zlib/inflate.js";
- import ZStream from "../vendor/pako/lib/zlib/zstream.js";
- export default class Inflate {
- constructor() {
- this.strm = new ZStream();
- this.chunkSize = 1024 * 10 * 10;
- this.strm.output = new Uint8Array(this.chunkSize);
- this.windowBits = 5;
- inflateInit(this.strm, this.windowBits);
- }
- inflate(data, flush, expected) {
- this.strm.input = data;
- this.strm.avail_in = this.strm.input.length;
- this.strm.next_in = 0;
- this.strm.next_out = 0;
- // resize our output buffer if it's too small
- // (we could just use multiple chunks, but that would cause an extra
- // allocation each time to flatten the chunks)
- if (expected > this.chunkSize) {
- this.chunkSize = expected;
- this.strm.output = new Uint8Array(this.chunkSize);
- }
- this.strm.avail_out = this.chunkSize;
- inflate(this.strm, flush);
- return new Uint8Array(this.strm.output.buffer, 0, this.strm.next_out);
- }
- reset() {
- inflateReset(this.strm);
- }
- }
|