GIFtoIFF Version 2.0 - Fixed Bugs

0) Stack size should be set to 8000 to 16000 with larger files.
   This hasn't been fixed, just mentioned.

1) Unlace would correctly deallocate memory upon a failure but would
   not deallocate memory upon a success. This has been fixed.

2) I ran across a couple GIF files which would bomb out of GIFtoTMP.
   I found the problem and fixed it. Several other GIF readers also
   had trouble with these files. GIFtoTMP is a little more forgiving
   now. If you see <13?> while running GIFtoTMP then you know you
   would've been hosed.

3) Due to memory limitations, TMPtoIFF and Unlace would run out of 
   memory on my 1Meg system for 640x400 files. I modified both programs 
   to use less memory by a factor of two. This greatly speeded up Unlace
   in the process. (I'm also getting more memory).

4) TMPtoIFF would run into problems if the user asked for more colors
   than the original image had. I didn't run across this until later
   because all the images I tested had 256 colors. 
   Now TMPtoIFF will change the final color number to that of the image
   if  HAM or EHB are NOT selected. Otherwise it will politely abort.

5) This set of files had code that exited if the image size was greater
   than 640. This was in case of corrupt files and my brain damage.
   This limit has now been removed.

6) TMPtoIFF was not correctly padding the lines of the IFF files to
   16 bit boundarys. This has been fixed. It manifested itself as
   garbage at the bottom and sides of images whose widths
   weren't a multiple of 16.

7) CAMG and the x,y aspects weren't being set up quite correctly. They
   probably still aren't, but unless something breaks I won't bother
   fixing it.

8) TMPtoIFF should run much faster. By modifying the algorithms I was
   able to do a lot of the work up front, which greatly speeded up
   HAM conversion. Optimizing the source code helped as well. I now
   print out every 16th line number instead of each one.

9) In cases where the final color number is equal to the image 
   color number, TMPtoIFF doesn't bother calculating Histograms 
   and Color Substituiton tables. It just goes right into the 
   output routine.



                              Mark Podlipec
                              27-7 Yorkshire Terrace
                              Shrewsbury  MA 01545