20 lines
841 B
Plaintext
20 lines
841 B
Plaintext
NOTE(m): Copied from https://github.com/svanderburg/libilbm/blob/master/doc/additions/PBM.asc
|
|
|
|
Apparently, The PC version of Deluxe Paint stores images in a slightly different
|
|
format compared to the Amiga version of the Deluxe Paint. After doing some
|
|
experiments, I have discovered the following differences:
|
|
|
|
- The IFF form type used is: 'PBM ' instead of 'ILBM'.
|
|
|
|
- As PC hardware does not know anything about bitplanes, its BODY uses chunky
|
|
format, in which every byte represents a pixel.
|
|
|
|
- Interleaving scanlines is to smoothly render planar graphics data on an Amiga,
|
|
so that no visual corruption is visible while calculating the index values of
|
|
each pixel. On the PC this is not necessary, so we don't have to interleave or
|
|
deinterleave anything.
|
|
|
|
- Some Amiga specific chunks, such as CAMG are not used.
|
|
|
|
Sander van der Burg
|