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cgfour (7)
  • >> cgfour (7) ( Solaris man: Макропакеты и соглашения )
  • 
    NAME
         cgfour - P4-bus 8-bit color memory frame buffer
    
    SYNOPSIS
         /dev/fbs/cgfourn
    
    DESCRIPTION
         The cgfour is a color memory frame buffer with a  monochrome
         overlay  plane  and an overlay enable plane. It provides the
         standard frame buffer interface as defined in fbio(7I).
    
         In addition to  the  ioctls  described  under  fbio(7I)  the
         cgfour  interface  responds  to two cgfour-specific colormap
         ioctls, FBIOPUTCMAP and FBIOGETCMAP. FBIOPUTCMAP returns  no
         information  other  than  success/failure  using  the  ioctl
         return value. FBIOGETCMAP returns  its  information  in  the
         arrays pointed to by the red, green, and blue members of its
         fbcmap structure argument; fbcmap is defined in <sys/fbio.h>
         as:
    
    
         struct fbcmap {
              int  index;             /* first element (0 origin) */
              int  count;             /* number of elements */
              unsigned  char *red     /* red color map elements */
              unsigned  char *green;  /* green color map elements */
              unsigned  char *blue;   /* blue color map elements */
         };
    
         The driver uses color board vertical-retrace  interrupts  to
         load the colormap.
    
         The cgfour has an overlay plane colormap, which is  accessed
         by  encoding  the  plane group into the index value with the
         PIX_GROUP macro (see <sys/pr_planegroups.h>).
    
    FILES
         /dev/fbs/cgfour0
    
    SEE ALSO
         mmap(2), fbio(7I)
    
    
    
    


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