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