FONT(5A)          MISC. REFERENCE MANUAL PAGES           FONT(5A)



NAME
     font - format of font files for Amiga Unix screens

SYNOPSIS
     getscr -ffilename ...
     sioc setfont filename
     sioc setdeffont filename
     sioc getfont

DESCRIPTION
     The text facility present in the Amiga Unix  console  driver
     (console(7A))  uses  a  font description format described by
     the following structures from <sys/screen.h>:

          struct charent {
              unsigned char ce_height;  /* Height of bitmap */
              unsigned char ce_width;   /* Width of bitmap */
              unsigned char ce_basel;   /* # pixels above baseline */
              unsigned char ce_move;    /* Horiz. cursor increment */
              unsigned char ce_bpl;     /* Bytes per line */
              unsigned char ce_pad;
              unsigned short ce_data;   /* Offset of bitmap data */
          };

          struct font {
              unsigned short f_magic;   /* Font file magic number */
              unsigned short f_flags;
              unsigned short f_count;   /* Number of references */
              unsigned short f_pad0;
              unsigned long f_length;   /* Total # bytes */
              unsigned char f_height, f_width;/* "Typical" character size */
              unsigned char f_baseline; /* # pixels above baseline */
              unsigned char f_pad1;
              struct charent f_ctable[256];/* Character table */
          };

          /* font.f_magic */
          #define F_MAGIC 0x2a46

     In memory, the struct font is followed by a variable  number
     of  bytes  which  contain  the  actual character bitmap data
     referenced by  the  elements  of  f_ctable[].   The  ce_data
     fields  are  offsets in bytes relative to the address of the
     struct font itself.  A font file is an exact  image  of  the
     in-memory font information.  The f_length field is available
     to know how many bytes need to be written to create  such  a
     file.

SEE ALSO
     screen(7A), console(7A), sioc(1A), getscr(1A)





Amiga Unix          Last change: PRELIMINARY                    1

FONT(5A)          MISC. REFERENCE MANUAL PAGES           FONT(5A)



FILES
     /usr/amiga/lib/font/ - directory where font files are stored





















































Amiga Unix          Last change: PRELIMINARY                    2