Fnt format
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Header
| Name | Size (Bytes) | Description |
|---|---|---|
| Magic | 3 | character string that must containg "fnx" |
| MSDOS-END | 4 | the four bytes 1Ah,0Dh,0Ah,00h |
| Bits Per Pixel | 1 | Font color depht can be equal to: 1,8,16,32 |
| Colors Palette | 768 | 256 RGB colors using 1 byte for each component where the two first bits are ignored, so a component can be from 0 to 63 value. |
| Color Gamuts | 576 | 16 color gamuts (sutsets of colors) useful to quickly paint.NOTE: currenly ignored |
| charset | 4 | Characters set, can be 0 or 1 to ISO8859 or CP850. |
Now goes 256 character Descriptors. one for each ASCII letter
Characters Desciptor
| Name | Size (Bytes) | Description |
|---|---|---|
| width | 4 | |
| height | 4 | |
| width offset | 4 | |
| height offset | 4 | |
| horizontal offset | 4 | |
| vertical offset | 4 | |
| data offset | 4 |
And finaly the graphics data
Graphics Data
The size of each graphic will be width * height * bits_per_pixel / 8, except to 1 bit that use a rounded byte line formula, round(width/8)*8 * height. To optain the exact position you need use the data offset stored in the descriptor of each data.