Anyone who ever had to draw text in a graphics application for pre-windows operating systems (i.e. Dos) will know what I'm asking for.
Each ASCII character can be represented by an 8x8 pixel matrix. Each matrix can be represented by an 8 byte code (each byte used as a bit mask for each line of the matrix, 1 bit representing a white pixel, each 0 a black pixel).
Does anyone know where I can find the byte codes for the basic ASCII characters?
Thanks,
BW
Self answering because user P i hasn't (they posted it in a comment on the question).
This github repo is exactly what I was looking for
From the read me . . .
A collection of header files containing a 8x8 bitmap font.
font8x8.h contains all available characters font8x8_basic.h contains unicode points U+0000 - U+007F font8x8_latin.h contains unicode points U+0000 - U+00FF
Author: Daniel Hepper [email protected] License: Public Domain
Every character in the font is encoded row-wise in 8 bytes.
The least significant bit of each byte corresponds to the first pixel in a row.
The character 'A' (0x41 / 65) is encoded as { 0x0C, 0x1E, 0x33, 0x33, 0x3F, 0x33, 0x33, 0x00}
0x0C => 0000 1100 => ..XX....
0X1E => 0001 1110 => .XXXX...
0x33 => 0011 0011 => XX..XX..
0x33 => 0011 0011 => XX..XX..
0x3F => 0011 1111 => xxxxxx..
0x33 => 0011 0011 => XX..XX..
0x33 => 0011 0011 => XX..XX..
0x00 => 0000 0000 => ........
To access the nth pixel in a row, right-shift by n.
. . X X . . . .
| | | | | | | |
(0x0C >> 0) & 1 == 0-+ | | | | | | |
(0x0C >> 1) & 1 == 0---+ | | | | | |
(0x0C >> 2) & 1 == 1-----+ | | | | |
(0x0C >> 3) & 1 == 1-------+ | | | |
(0x0C >> 4) & 1 == 0---------+ | | |
(0x0C >> 5) & 1 == 0-----------+ | |
(0x0C >> 6) & 1 == 0-------------+ |
(0x0C >> 7) & 1 == 0---------------+