47 lines
1.2 KiB
JavaScript
47 lines
1.2 KiB
JavaScript
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/*
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* noVNC: HTML5 VNC client
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* Copyright (C) 2012 Joel Martin
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* Copyright (C) 2018 Samuel Mannehed for Cendio AB
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* Copyright (C) 2018 Pierre Ossman for Cendio AB
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* Licensed under MPL 2.0 (see LICENSE.txt)
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*
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* See README.md for usage and integration instructions.
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*
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*/
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export default class RREDecoder {
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constructor() {
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this._subrects = 0;
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}
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decodeRect(x, y, width, height, sock, display, depth) {
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if (this._subrects === 0) {
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if (sock.rQwait("RRE", 4 + 4)) {
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return false;
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}
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this._subrects = sock.rQshift32();
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let color = sock.rQshiftBytes(4); // Background
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display.fillRect(x, y, width, height, color);
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}
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while (this._subrects > 0) {
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if (sock.rQwait("RRE", 4 + 8)) {
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return false;
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}
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let color = sock.rQshiftBytes(4);
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let sx = sock.rQshift16();
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let sy = sock.rQshift16();
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let swidth = sock.rQshift16();
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let sheight = sock.rQshift16();
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display.fillRect(x + sx, y + sy, swidth, sheight, color);
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this._subrects--;
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}
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return true;
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}
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}
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