ttf-to-textfont will convert a TrueType font into a 'textfont' file, which is a simple text file describing a bitmapped font.
textfont-to-octo will convert the textfont file into Octo assembly code.
An intermediate file is used so that the font can be hand edited before the final conversion.
This is a hacked-up work in progress. To get full functionality, you will need to edit the source code. textfont-to-octo is
especially rough. Currently limited to 8x8px or smaller glyphs.
Many improvements could be made:
- Handling of larger glyphs, using multiple sprite ops and/or 16-bit SuperChip sprites
- A sparse mode with a glyph location lookup table to avoid lots of 0s
- A fixed width mode without a width table
- Variable height glyphs
- Optional output of sample test code
- Additional functions, such as drawing a string
- Advanced kerning rules
- Optional guards for out-of-bounds inputs
- Better handling of vertical alignment and the font baseline. Clipping the glyphs with a bounding box is not helping with this.
- Use of register aliases