gl_expandfont man page

gl_expandfont ā€” expand a packed pixel font


#include <vgagl.h>

void gl_expandfont(int fw, int fh, int c, void *sfp, void *dfp);


Convert a bit-per-pixel font at sfp with 256 characters of size (fw, fh) to an expanded font of character pixmaps, stored at dfp (size will be 256 * fw * fw * BYTESPERPIXEL). All non-zero pixels are set to color c.

It is possible to use non expanded fonts (but it is slower) when the FONT_COMPRESSED gl_setwritemode(3) flag is set.

See Also

svgalib(7), vgagl(7), svgalib.conf(5), testgl(1), gl_colorfont(3), gl_font8x8(3), gl_setfont(3), gl_setfontcolors(3), gl_setwritemode(3), gl_write(3), gl_writen(3).


This manual page was edited by Michael Weller <>. The exact source of the referenced demo as well as of the original documentation is unknown.

It is very likely that both are at least to some extent are due to Harm Hanemaayer <>.

Occasionally this might be wrong. I hereby asked to be excused by the original author and will happily accept any additions or corrections to this first version of the svgalib manual.

Referenced By

gl_colorfont(3), gl_font8x8(3), gl_printf(3), gl_setfont(3), gl_setfontcolors(3), gl_setwritemode(3), gl_write(3), vgagl(7).

2 Aug 1997 Svgalib (>= 1.2.11) Svgalib User Manual