AmigaBootLogo

Demo:

https://youtu.be/OtDVyxZJwiE

Unfortunately I don't have a Workbench floppy at hand right now to test booting, but the floppy drive is ticking.

This is a set of utilities to extract and insert the Amiga "workbench floppy" image from a Kickstart 1.3 ROM image. This was inspired by the answer in StackExchange that describes the vector format. I spent a bit of time in Ghidra to decode the format for images.

The scripts require Pillow to be installed.

python kick2svg.py [-h] [--png output.png] [--svg output.svg] kickstart.bin

This extracts the logo into either a PNG or an SVG file. The PNG file is just executing the draw commands with Pillow so fill rules may be different from the ones in the built-in graphics library. The SVG is a list of draw commands that can be viewed in various web browsers or Inkscape.

While I could convert flood fill instructions from the ROM into filled polygons in the SVG I decided to just put a dot at each flood fill seed.

python svg2kick.py svg2kick.py [-h] [--out kick-patched.bin] kickstart.bin logo.svg

This extracts draw commands from the svg. Only a limited number of primitives are supported, and only fill and outline colours are used. There are 412 byte available for vector draw instructions and 310 byte for bitmaps. I am not sure if you could relocate the data into a larger unused section.

For now bitmaps are not supported.