1/*
 2 * noVNC: HTML5 VNC client
 3 * Copyright (C) 2019 The noVNC authors
 4 * Licensed under MPL 2.0 (see LICENSE.txt)
 5 *
 6 * See README.md for usage and integration instructions.
 7 *
 8 */
 9
10import TightDecoder from './tight.js';
11
12export default class TightPNGDecoder extends TightDecoder {
13    _pngRect(x, y, width, height, sock, display, depth) {
14        let data = this._readData(sock);
15        if (data === null) {
16            return false;
17        }
18
19        display.imageRect(x, y, width, height, "image/png", data);
20
21        return true;
22    }
23
24    _basicRect(ctl, x, y, width, height, sock, display, depth) {
25        throw new Error("BasicCompression received in TightPNG rect");
26    }
27}