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XLI - X11 Image Loading Utility
WHAT IS IT?
xli is an image display program for X, created by Graeme Gill from Jim
Frost's xloadimage, and currently maintained by smar@reptiles.org.
xli will view several types of images under X11, or load images onto
the X11 root window. The current version (1.17) supports:
CMU Window Manager raster files
Faces Project images
Fuzzy Bitmap (.fbm) images
GEM bit images
GIF images (Including GIF89a compatibility)
G3 FAX images
JFIF style JPEG images
McIDAS areafiles
MacPaint images
Windows, OS/2 BMP Image
Monochrome PC Paintbrush (.pcx) images
Photograph on CD Image
Portable Bitmap (.pbm, .pgm, .ppm) images
Portable Network Graphics (PNG) images
Sun monochrome rasterfiles
Sun color RGB rasterfiles
Targa (.tga) files
Utah Raster Toolkit (.rle) files
X pixmap (.xpm) files (Version 1, 2C and 3)
X10 bitmap files
X11 bitmap files
X Window Dump (except TrueColor and DirectColor)
A variety of options are available to modify images prior to viewing.
These options include clipping, dithering, depth reduction, zoom (either X
or Y axis independently or both at once), brightening or darkening, input
gamma correction, and image merging. When applicable, these options are
done automatically (eg. a color image to be displayed on a monochrome
screen will be dithered automatically). A utility (xlito) is provided
that allows these viewing options to be appended to the image files.
CHANGES FROM XLI 1.16
Converted source code to ANSI C prototypes.
Removed MSDOS support (Sorry! Anyone want to add Win32 support?)
Added PNG file format loader.
Added support for MIT shared memory extension.
Rewrote JPEG file format loader to use the IJG library, to take
advantage of performance improvements and support progressive
scan JPEGs.
Added the -delete, -iscale, -focus, and -cache options.
Added interactive image fast scaling with the '<', '>' and '=' keys.
Added TODO file. Feel free to do anything on the list, or offer
your own fixes and enhancements.
HOW IS XLI RELATED TO XLOADIMAGE ?
xloadimage is maintained by Jim Frost - jimf@saber.com
xli version 1.00 was based on xloadimage version 3.01.
xli was maintained by Graeme Gill - graeme@labtam.oz.au, up to
version 1.16.
xli is currently maintained by smar@reptiles.org
Please read README.xloadimage, which is the original xloadimage
README file for xloadimage info and credits.
WHERE CAN I GET IT ?
http://pantransit.reptiles.org/prog/#xli
COMPILING
There are a variety of ways to compile xli, depending on what
environment you have.
The easiest way of compiling it is to use the Imakefile. Simply
run 'xmkmf' (which should be in your systems /usr/bin/X11 or
somewhere equivalent), which should make a Makefile suitable
for your system. Type 'make' to then build xli. It can be
installed in the standard place (along with its aliases xview
and xsetbg) by typing 'make install'. The manual entry can
be installed using 'make install.man'.
The JPEG reader assumes that you have the IJG JPEG library somewhere.
You can get it from ftp://ftp.uu.net/graphics/jpeg/.
The PNG reader assumes you have the PNG group's library and zlib.
They're at http://www.cdrom.com/pub/png/pngcode.html, along with a
lot of other PNG stuff. You'll need libpng-1.0.5 or later.
If using the Imakefile is not possible, then you can try using
Makefile.std. Choose your target from
std BSD environment
sysv SYSV environment
gcc BSD using gcc
sysv-gcc SYSV using older gcc
and use something like:
make -f Makefile.std target
There are a few compilation flags that you may need/want to change.
This can be done in the Makefile.std file. The defines are:
-DHAVE_GUNZIP if you want to use gunzip rather than uncompress
on .Z files
-DNO_UNCOMPRESS if you system doesn't have uncompress or gunzip.
SUGGESTIONS AND BUG REPORTS
xli has been developed in a fairly limited hardware environment, and
not all combinations of displays and/or image formats and options have
been tested. xli is useful to me, and maybe it will be useful to you.
Suggestions and bug reports should go to:
smar@reptiles.org
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