gencolor — output a pattern of byte values
gencolor
repeats a pattern of up to 8192 8-bit values on its standard output.
The values, which range from 0 to 255, are taken either from the command
line, or in binary (as stored in a .bw or .pix file) from standard input; if the values are not supplied, a single value
of 0, for black, is used. The
-r
flag can be used to specify the number of times to repeat the given pattern,
the default being infinity (unless any other "-" options are used -- see below).
This program is useful for producing a given grey value or color. Note that
gencolor
will refuse to write its output to a window; you must redirect the output to a file.
-p and -b are used to specify pix file
and bw file, respectively.
-w (or -W) indicates the width;
-n (or -N) indicates the height;
width and height are set to the same value using -s (or -S).
By default, a pix file of size 512x512 is assumed; however, use of -r
overrules use of any other "-" options.
gencolor -r512 0 255 0 > foo.pix
will output 512 "green" pixels (0 255 0 being used as RGB values).
gencolor -r1 0 255 0 | gencolor -r512 > foo.pix
will do the same as above, using standard input instead of having the values on the command line.