PixArt file format: Difference between revisions

From AtariForumWiki
Jump to navigation Jump to search
>Lp
mNo edit summary
>Lp
mNo edit summary
Line 4: Line 4:
1 long          file ID 'PIXT'
1 long          file ID 'PIXT'
1 word          version, $0001 or $0002
1 word          version, $0001 or $0002
1 byte          chunky (0) or planar (1)
1 byte          type, chunky (0) or planar (1)
1 byte          #bitplanes
1 byte          #bitplanes
1 word          xres (always a multiple of 16)
1 word          xres (always a multiple of 16)
Line 16: Line 16:
???? bytes      image data, chunky or planar for bit depths 2, 4, 8
???? bytes      image data, chunky or planar for bit depths 2, 4, 8
                 bit depth 16 is always chunky, Falcon RGB format (RRRRRGGGGGGBBBBB)
                 bit depth 16 is always chunky, Falcon RGB format (RRRRRGGGGGGBBBBB)
                 bit depth 24 ?
                 bit depth 24 is always chunky, format:
                  type = 0 (BGR), type = 1 (RGB)
                 bit depth 32 is always chunky, format (ARGB)
                 bit depth 32 is always chunky, format (ARGB)
</pre>
</pre>
Back to [[ST Picture Formats]]
Back to [[ST Picture Formats]]

Revision as of 06:16, 1 February 2017

PixArt          *.PIX

1 long           file ID 'PIXT'
1 word           version, $0001 or $0002
1 byte           type, chunky (0) or planar (1)
1 byte           #bitplanes
1 word           xres (always a multiple of 16)
1 word           yres
1 word           unknown
1 word           unknown (version $0002 only)
--------------
14 or 16 bytes   total for header

3*n bytes        palette, only for bit depths 2, 4, 8
???? bytes       image data, chunky or planar for bit depths 2, 4, 8
                 bit depth 16 is always chunky, Falcon RGB format (RRRRRGGGGGGBBBBB)
                 bit depth 24 is always chunky, format:
                   type = 0 (BGR), type = 1 (RGB)
                 bit depth 32 is always chunky, format (ARGB)

Back to ST Picture Formats