[SDL] tga file loading ...

Mattias Engdegård f91-men at nada.kth.se
Fri Apr 28 12:04:44 PDT 2000


>Why not compare the width/height/bpp information to the size of the raw data as 
>a sanity check?

It still doesn't guarantee against a false positive, and it requires decoding
the entire file in the presence of RLE compression. Worse, it makes the
magic numbers of other formats hazardous as they might mistakenly identify
a .tga as (say) a Group 3 Fax file. (The last case actually did happen in
the Gimp. It has now been fixed, so the file suffix is tested against
magicless formats first.)




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