NAME

fdsv− save an image in frame buffer into a fast-disk picture file

SYNOPSIS

fdsv file [ options ]

DESCRIPTION

fdsv saves the picture contained in a frame buffer as a Fast-Disk “tile-based” picture file on disk.  If file exists, the previous version is deleted.  The created file conforms to Pixar’s standards for Fast-Disk tile-based picture files (see “The Format of Stored Pictures” in the ChapLibraries User’s Manual) and can be retrieved by fdgt(1).

When using the fdgt and fdsv utilities, the CHAPLIBPATH environment variable must reference the library /usr/pixar/hsi/chap/lib/libfdpicio.a. 

All Fast-Disk pathnames not beginning with a slash (/) are interpreted to be relative to the current Fast-Disk working directory specified by the FDCWD environment variable (see fdcwd(7)).

Options:

−fb fbname
frame buffer; see intro(1). 

−v (verbose) elicits typeout of the created file name. 

−t width height
asks that a specific tile size be used. The default is the size of the picture.

−w xmin xmax ymin ymax
See intro(1). The default is the size of the frame buffer. The tile size is always limited to be no bigger than the picture size in either dimension.

−l label
provides a label to be stored in the picture header.

−12bit
indicates that pixel information should be stored with 12 bits per channel.

−o x y
force the offset of the image in the picture file.

SEE ALSO

fdgt(1), fdgtinfo(1), libfdpicio(3H), fdcwd(7)

DIAGNOSTICS

A FdPicCreat error results if the tilesize is <= 0 in either dimension or the picture size is <= 0 in either dimension or if the picture or tile dimensions do not conform to the Fast-Disk file format restrictions (all sizes must be a multiple of 32 pixels). 

Release β  —  Last change: 10/12/88