PPMTORAST

NAME

      ppmtorast - convert a portable pixmap into a Sun raster file

SYNOPSIS

      ppmtorast [-s] [-x] [ppmfile]

DESCRIPTION

      Reads a portable pixmap as input.  Produces a Sun raster file as
      output.  NOTE: since it uses Sun-specific include files and libraries,
      ppmtorast will compile only on Suns.
      Color values in Sun raster files are eight bits wide, so ppmtorast
      will automatically scale colors to have a maxval of 255.  An extra
      ppmcscale step is not necessary.
      The -s flag forces the result to be in RT_STANDARD form; otherwise, it
      defaults to RT_BYTE_ENCODED, which is smaller but, well, less
      standard.
      The -x flag has to do with the color map.  Normally, ppmtorast
      attempts to rearrange or add to the colormap so that white is in slot
      0 and black is in slot 1 -- the standard Sun default colormap.
      However, if you are doing screenloads from within Xsun, on a CG2, you
      want the opposite -- black in slot 0 and white in slot 1.  (Why would
      you be doing something this silly?  Well, I have sometimes found it
      useful.) So, the -x flag sets this.
      The pbmtorast filter is significantly faster if your images are just
      black and white.

SEE ALSO

      rasttoppm(1), ppm(5), pbmtorast(1), rasttopbm(1)

AUTHOR

      Copyright (C) 1989 by Jef Poskanzer.
      Permission to use, copy, modify, and distribute this software and its
      documentation for any purpose and without fee is hereby granted,
      provided that the above copyright notice appear in all copies and that
      both that copyright notice and this permission notice appear in
      supporting documentation.  This software is provided "as is" without
      express or implied warranty.