Added built-in noVNC support.

public/novnc/core/decoders/raw.js

@@ -0,0 +1,58 @@
+/*
+ * 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 RawDecoder {
+    constructor() {
+        this._lines = 0;
+    }
+
+    decodeRect(x, y, width, height, sock, display, depth) {
+        if (this._lines === 0) {
+            this._lines = height;
+        }
+
+        const pixelSize = depth == 8 ? 1 : 4;
+        const bytesPerLine = width * pixelSize;
+
+        if (sock.rQwait("RAW", bytesPerLine)) {
+            return false;
+        }
+
+        const cur_y = y + (height - this._lines);
+        const curr_height = Math.min(this._lines,
+                                     Math.floor(sock.rQlen / bytesPerLine));
+        let data = sock.rQ;
+        let index = sock.rQi;
+
+        // Convert data if needed
+        if (depth == 8) {
+            const pixels = width * curr_height;
+            const newdata = new Uint8Array(pixels * 4);
+            for (let i = 0; i < pixels; i++) {
+                newdata[i * 4 + 0] = ((data[index + i] >> 0) & 0x3) * 255 / 3;
+                newdata[i * 4 + 1] = ((data[index + i] >> 2) & 0x3) * 255 / 3;
+                newdata[i * 4 + 2] = ((data[index + i] >> 4) & 0x3) * 255 / 3;
+                newdata[i * 4 + 4] = 0;
+            }
+            data = newdata;
+            index = 0;
+        }
+
+        display.blitImage(x, cur_y, width, curr_height, data, index);
+        sock.rQskipBytes(curr_height * bytesPerLine);
+        this._lines -= curr_height;
+        if (this._lines > 0) {
+            return false;
+        }
+
+        return true;
+    }
+}