Font formats

BDF glyph bitmap rows

Convert a #/. pixel grid into byte-padded BDF bitmap rows.

Your inputs

Start with an example

Example result

Pack each row from its leftmost, most significant bit. Pad unused bits on the right with zeros and include the BBX dimensions.

The 3-pixel rows .#., ### and #.# become 40, E0 and A0 hex.

Up to 64×64 monochrome pixels. Output is a BBX/BITMAP fragment; font properties, encoding and advance metrics are not invented.