Topic : ATARI ST Picture formats
Author : David Baggett/Jan K⌐upka
Version : atari_gf.hyp 0.01 (17/09/96)
Subject : Documentation/File formats
Nodes : 52
Index Size : 1328
HCP-Version : 3
Compiled on : Atari
@charset : atarist
@lang :
@default :
@help :
@options : -i -s +y +z
@width : 75STOS *.MBK
9 words ?
1 longlong = 4 bytes
$19861987 (magic number?)
1 longlong = 4 bytes
offset from this long to header for low resolution
parameter block (if past end of file, no low res frames)
1 longlong = 4 bytes
offset from this long to header for med resolution
parameter block (if past end of file, no med res frames)
1 longlong = 4 bytes
offset from this long to header for high resolution
parameter block (if past end of file, no high res frames)
1 wordword = 2 bytes
number of low resolution frames
1 wordword = 2 bytes
number of medium resolution frames
1 wordword = 2 bytes
number of high resolution frames
For each frame {
1 longlong = 4 bytes
offset to data (probably only used internally by STOS)
1 byte width in words (multiply by 16 to get width in pixels)
1 byte height in pixels
1 byte X hotspot location
1 byte Y hotspot location
}
(The format implies other stuff could be here.)
1 longlong = 4 bytes
["PALT" $50414C54]
16 words palette? words of data for each frame, in the order mentioned in the
header. Monoplanar mask data follows image data for each
frame.
? words total
The frames often seem to be in semi-random order, not necessarily
in the order they are to be animated.