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This is a C++ node.js module that decodes various RFB encoding protocols to
RGB buffers (or BGR buffers).
It was written by Peteris Krumins (
His blog is at -- good coders code, great reuse.
This module is useful for producing images from various RFB encodings. For
example, if you use it together with node-png (,
then you can easily produce PNG images by combining the output of this module
with input of node-png.
For now it has only hextile encoding. Next up diffed hextile.
Hextile Encoding
Example usage:
var Hextile = require('rfb-protocols').Hextile;
var Png = require('png').Png;
var decoder = new Hextile(); // ?? width height?
decoder.push(buffer, x, y); // ??
decoder.decode('rgb', function (rgb_buffer, error) {
new Png(rgb, width, height).encode(function (image, error) {
fs.writeFileSync(image, 'frame.png', 'binary');
Have fun decoding those RFB protocols!
Peteris Krumins