47 lines
1.2 KiB
JavaScript
47 lines
1.2 KiB
JavaScript
/*
|
|
* 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;
|
|
}
|
|
}
|