yea ur converter have most less buggy especialy when i have compile with bunch of frames
BTW, u said that u have a 100% complete understanding of the format
so I wonder could u make such a file converting to convert between GRP and other animated graphics file ( such as GIF or FLC Animation Format ) if u have a 100% complete understanding i suggest try that
for reference FLC file i show u link page which FLI/FLC format description
http://www.compuphase.com/flic.htmif pplz who's have experienced in making animations file
then normally they are use those format for their working
so my point is if we can able to convert GIF or FLC to GRP and reverse working
basicly we dont need to add any editing features at all when use grp tool
GIMP and photoshop and bunch of grachics tools have powerful editing features
to make image and animations so i think that is most effectual and economic solutions
whoever add editing features in grp tools
that could not follow to other technical graphic editors which used widely in the CG industry
typically GIMP and Photoshop they are allow to change each frame counts
and colours and palettes , add and remove frames and play fearures
i think if u would get understand about other animations file format which used widely for graphic and animation editors
that would be not hard i believe like that even though i'm not programer