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git.proxmox.com Git - mirror_novnc.git/blob - utils/inflator.partial.js
1 var zlib
= require('../node_modules/pako/lib/zlib/inflate.js');
2 var ZStream
= require('../node_modules/pako/lib/zlib/zstream.js');
4 var Inflate = function () {
5 this.strm
= new ZStream();
6 this.chunkSize
= 1024 * 10 * 10;
7 this.strm
.output
= new Uint8Array(this.chunkSize
);
10 zlib
.inflateInit(this.strm
, this.windowBits
);
14 inflate: function (data
, flush
, expected
) {
15 this.strm
.input
= data
;
16 this.strm
.avail_in
= this.strm
.input
.length
;
17 this.strm
.next_in
= 0;
18 this.strm
.next_out
= 0;
20 // resize our output buffer if it's too small
21 // (we could just use multiple chunks, but that would cause an extra
22 // allocation each time to flatten the chunks)
23 if (expected
> this.chunkSize
) {
24 this.chunkSize
= expected
;
25 this.strm
.output
= new Uint8Array(this.chunkSize
);
28 this.strm
.avail_out
= this.chunkSize
;
30 zlib
.inflate(this.strm
, flush
);
32 return new Uint8Array(this.strm
.output
.buffer
, 0, this.strm
.next_out
);
36 zlib
.inflateReset(this.strm
);
40 module
.exports
= {Inflate
: Inflate
};