johnmac@fawlty.towers.oz (John MacLean) (09/25/90)
I have written software that interprets PCX files (after seeking
documentation) but am having some problems.
I have no problems decoding the image data from the docs I have, but I
cannot get the palette / RGB values for each pixel correct, only
a 0..2^n - 1 value for each pixel (where n = number of bits per pixel).
How do I get from this index to an RGB value?
The docs describe a $30 byte palette of $10 RGB tripples - is this
used?
The files I have are 1 bit per pixel and 8 bits per pixel - but if
others are common I would like to know how to get RGB values from
these as well.
The 8 bits per pixel files have $0300 bytes additional at the end of the
file which my docs do not describe (This is the exact length of $100 RGB
tripples - but it does not appear to contain such data).
Thanks, John MacLean.
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