41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
var zlib = require('../node_modules/pako/lib/zlib/inflate.js');
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var ZStream = require('../node_modules/pako/lib/zlib/zstream.js');
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var Inflate = function () {
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this.strm = new ZStream();
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this.chunkSize = 1024 * 10 * 10;
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this.strm.output = new Uint8Array(this.chunkSize);
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this.windowBits = 5;
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zlib.inflateInit(this.strm, this.windowBits);
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};
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Inflate.prototype = {
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inflate: function (data, flush, expected) {
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this.strm.input = data;
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this.strm.avail_in = this.strm.input.length;
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this.strm.next_in = 0;
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this.strm.next_out = 0;
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// resize our output buffer if it's too small
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// (we could just use multiple chunks, but that would cause an extra
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// allocation each time to flatten the chunks)
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if (expected > this.chunkSize) {
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this.chunkSize = expected;
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this.strm.output = new Uint8Array(this.chunkSize);
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}
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this.strm.avail_out = this.chunkSize;
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zlib.inflate(this.strm, flush);
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return new Uint8Array(this.strm.output.buffer, 0, this.strm.next_out);
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},
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reset: function () {
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zlib.inflateReset(this.strm);
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}
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};
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module.exports = {Inflate: Inflate};
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