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vga_addtiming(3)	       Svgalib User Manual		vga_addtiming(3)

NAME
     vga_guesstiming - calculate a timing line for the given resolution

SYNOPSIS
     #include <vga.h>

     int vga_guesstiming(int x, int y, int clue, int arg);

DESCRIPTION
     Calculates  a  timing  line for a x*y resolution, according to the value of
     clue.

CALCULATION METHODS
     If clue is 0, then the aspect ratio for the requested mode ( x:y ) must  be
     4:3.  A  mode  with  the  same aspect ratio closest to the requested, while
     still having a higher resolution is found, and then scaled down to the  re-
     quested mode.

     If  clue is 1, then the aspect ratio for the requested mode ( x:y ) must be
     4:3. A mode with the same aspect ratio  closest  to  the  requested,  while
     still  having  a lower resolution is found, and then scaled down to the re-
     quested mode.

BUGS
     No guarantee that a modeline will be created, or that  a  created	modeline
     will be usefull is given.

SEE ALSO
     vga_addmode(3) vga_addtiming(3) addmodetest(6)

AUTHOR
     This manual page was written by Matan Ziv-Av

Svgalib (>= 1.4.0)		  7 April 1999			vga_addtiming(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=vga_guesstiming&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

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