Difference between revisions of "PixArt file format"
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1 long file ID 'PIXT' | 1 long file ID 'PIXT' | ||
1 word version, $0001 or $0002 | 1 word version, $0001 or $0002 | ||
| − | 1 byte | + | 1 byte type, 0 to 2 depending on number of planes, see below |
| − | 1 byte | + | 1 byte number of planes |
1 word xres (always a multiple of 16) | 1 word xres (always a multiple of 16) | ||
1 word yres | 1 word yres | ||
| Line 13: | Line 13: | ||
14 or 16 bytes total for header | 14 or 16 bytes total for header | ||
| − | 3*n bytes palette, only for bit depths 2, 4, 8 | + | 3*n bytes palette, only for bit depths 2, 4, 8 |
| − | ???? bytes image data, | + | 3 bytes per entry in RGB order (0-255) |
| − | + | ||
| − | + | ???? bytes image data: | |
| + | bit depth 1 | ||
| + | type = 1, planar | ||
| + | bit depths 2, 4, 8 | ||
| + | type = 0, chunky | ||
| + | type = 1, planar | ||
| + | bit depth 16 is always chunky: | ||
| + | type = 0, xRRRRRGGGGGBBBBB | ||
| + | type = 1, RRRRRGGGGGGBBBBB (Falcon) | ||
| + | type = 2, GGGBBBBBxRRRRRGG (word swapped) | ||
| + | bit depth 24 is always chunky: | ||
| + | type = 0, BGR | ||
| + | type = 1, RGB | ||
| + | bit depth 32 is always chunky: | ||
| + | type = 0, ARGB | ||
</pre> | </pre> | ||
Back to [[ST Picture Formats]] | Back to [[ST Picture Formats]] | ||
Latest revision as of 01:01, 4 June 2018
PixArt *.PIX
1 long file ID 'PIXT'
1 word version, $0001 or $0002
1 byte type, 0 to 2 depending on number of planes, see below
1 byte number of planes
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
3 bytes per entry in RGB order (0-255)
???? bytes image data:
bit depth 1
type = 1, planar
bit depths 2, 4, 8
type = 0, chunky
type = 1, planar
bit depth 16 is always chunky:
type = 0, xRRRRRGGGGGBBBBB
type = 1, RRRRRGGGGGGBBBBB (Falcon)
type = 2, GGGBBBBBxRRRRRGG (word swapped)
bit depth 24 is always chunky:
type = 0, BGR
type = 1, RGB
bit depth 32 is always chunky:
type = 0, ARGB
Back to ST Picture Formats
