Note: This is a very primitive port of ÒppmtogifÓ  from the ÒpbmÓ 
package that was developed by Jef Poskanzer.  These 
programs are still in the testing phase.  This program is intended to 
be used as a bridge until the final versions become available.

This program converts file from Òppm256Ó format to gif format.

Usage:

Place the application in the same folder where the .ppm256 file 
resides.

Launch the application.  When the console dialog appears, at the 
point where the cursor is positioned, enter:

	<file>.ppm256 <file>.gif

For example, if I have a file named Òtest.ppm256Ó, I would be 
presented 
with a line like:

	ppmtogif 

to which I would add to make the complete line:

	ppmtogif test.ppm256 test.gif

Press return or click ÒOKÓ.

IÕve included the ÒREADMEÓ file from the original distribution.
The only differences between this program and the distribution the 
display of the opening copyright messages and changes necessary to 
make things run properly on the Mac.  This version was compiled 
from a version that was posted on Òalt.graphics.pixutilsÓ

There are two versions of this program being posted.  ÒppmtogifÓ was 
compiled with vanilla 60000 code and no 68881 math co-processor 
support.  It should run on any Mac.  The time required to 
convert a 297K ppm256 file into a 110K gif file was about forty 
seconds (not counting the time required for the final write to flush 
the output file.  The timing was done on a Mac IIci.

The Òppmtogif.020.68881Ó version has been compiled with both 
68020 
and 68881 code generation enabled.  It will only work on Macs that 
have both of these chips.  The timing for the above decompression 
was about 25 seconds.

You will also need to obtain the ÒdjpegÓ and ÒppmquantÓ 
programs to make proper use of this program.  They were posted 
earlier this week.