IFL(1)                                                                  IFL(1)


NAME
     IFL - configuring the Image Format Library runtime environment

SYNOPSIS
     The Image Format Library (IFL) provides support for opening, reading,
     writing and creating image files in a format independent manner.  IFL
     includes support for the TIFF, GIF, PNG, JFIF(JPEG), SGI, PPM, Photo CD,
     FIT, XPM, XBM, NITF, BMP, Alias|WaveFront, and YUV file formats. It is
     used by a number of tools bundled with IRIX, including:


          imginfo
          imgformats
          imgcopy
          imgview
          imgtcl

     and some of the other desktop tools.

DESCRIPTION
     Two environment variables can be used to configure the global IFL
     environment. These environment variables are summarized in a table here
     and described in more detail below:

                  Variable             Default
                  ______________________________________________
                  IFL_DATABASE         /usr/lib/ifl/ifl_database
                  LD_LIBRARY_PATH      /usr/lib:/lib
                  LD_LIBRARYN32_PATH   /usr/lib32:/lib32
                  LD_LIBRARY64_PATH    /usr/lib64:/lib64

     The image file formats recognized by IFL are determined at runtime by
     searching for dynamic shared objects (DSOs) that contain the code for
     various file formats.  By default, IFL will look for a database file
     describing the file formats it supports named
     '/usr/lib/ifl/ifl_database'.  This can be overridden by the environment
     variable, IFL_DATABASE, the value of which is a absolute pathname for the
     database file.  The imgformats(1) command can be used to list the
     currently supported file formats.

     The set of directories that IFL will search for dynamically loaded file
     format DSOs is determined by the environment variable, LD_LIBRARY_PATH,
     LD_LIBRARYN32_PATH or LD_LIBRARY64_PATH, depending on the object-style of
     the application using IFL.  This environment variable's usage is
     documented in the rld(1) man page.

FILES
     /usr/lib*/libifl.so         Base (C++) library
     /usr/lib*/libcifl.so        C API wrapper library
     /usr/lib*/libifl*.so        File format support libraries


     /usr/lib/ifl/ifl_database   File format database
     /usr/share/data/images/     Sample images

SEE ALSO


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