The section below describes Nichmen's TPX image file format.
To view an octal dump of a TPX image, enter the following command at a UNIX shell prompt:
Header
od filename
000000 32 42 70 78 31 36 20 20 20 20 20 20 20 20 33 32 2bpx16........32
000016 20 20 20 20 20 20 20 30 20 20 20 20 20 20 20 30 .......0.......0
000032 20 20 20 20 20 31 35 30 20 20 20 20 20 31 35 30 .....150.....150
000048 20 20 31 30 30 30 30 30 20 20 31 30 30 30 30 30 ..100000..100000
000064 20 42 20 30 78 20 36 00 20 20 20 20 20 20 20 20 .b.0x.6.........
000080 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ................
000096 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ................
000112 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ................
1st Line
2 two-dimensional
b binary
px picture pixel
1 version
6 machine type (3=Sun, 6=SGI)
32 pixel depth
3rd Line
150 image width
150 image height
4th Line
100000 always 100000
100000 always 100000
5th Line
b b=both fields, e=even fields only, o=odd fields only
6 A bit status word, which is a combination of the following components: M=1, Alpha=2 RGB=4, Z=8
If the value of the bit status word in line five is six, the assumed byte order is ABGR.
If the value of the bit status word in line five is four, the assumed byte order is BGR.
| Bits | Channel |
|---|---|
|
0-7
|
Alpha
|
|
8-15
|
Blue
|
|
16-23
|
Green
|
|
24-31
|
Red
|
Following Lines
The rest of the file is packed with image data.
Another fine product from Nichimen documentation!Copyright © 1996, Nichimen Graphics Corporation. All rights reserved.