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8x8 monochrome bitmap fonts for rendering
This project forked from dhepper/font8x8
8x8 monochrome bitmap fonts for rendering
8x8 monochrome bitmap font for rendering ========================================= 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 Encoding ======== 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---------------+ Renderer ======== To visualize the font, a simple renderer is included in render.c $ gcc render.c -o render $ ./render 65 XX XXXX XX XX XX XX XXXXXX XX XX XX XX Credits ======= These header files are directly derived from an assembler file fetched from: http://dimensionalrift.homelinux.net/combuster/mos3/?p=viewsource&file=/modules/gfx/font8_8.asm Original header: ; Summary: font8_8.asm ; 8x8 monochrome bitmap fonts for rendering ; ; Author: ; Marcel Sondaar ; International Business Machines (public domain VGA fonts) ; ; License: ; Public Domain ;
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