LAOS Laser

I'm working on a Simplecode previewer:
https://github.com/peteruithoven/SimpleCodePreviewer
It can help a great deal with debugging issues.

I'd like to add support for engraving, but I'm having trouble with it's simplecode.
Engrave lines are stored in lines like:

9 1 320  0 251658240 254 0 0 0 0 0 0 0

Documentation:

Bitmap data <bpp> <width> <data-0> .. <data-n>
Load bitmap data line of <width> pixels with each <bpp> bits per pixel. This is followed by [n] 32-bits datawords. Where [n] is rounded up to 32 bits using n = ceil(bpp*npixels/32). These pixels are clocked out during the next mark command (1). Pixel 1 is located at the LSB of the first dataword.

I'm having trouble with the <data-...> parts, I'm not very good with bits. Could someone help me create a visual preview?

Relevant code:
Simplecode generation in VisiCut:
https://github.com/t-oster/LibLaserCut/blob/develop/src/com/t_oster/liblasercut/drivers/LaosCutter.java#L569
Simplecode parsing in laos firmware:
https://github.com/LaosLaser/Firmware/blob/master/laser/LaosMotion/LaosMotion.cpp#L319
Stepper controlin laos firmware:
https://github.com/LaosLaser/Firmware/blob/a08bde1e29abb71e1deeaac4f8bbb17eabe8e06b/laser/LaosMotion/grbl/stepper.cpp#L340