PCX Files
Author
I''ve got a tech. reference for the PCX file format from ZSoft Corporation, but I''m unclear as to 1) How are Planes organized, 2) How are the colors organized in the palettized modes, and 3) in the later versions, does the colormap at the bottom ALWAYS contain 256 colors?
Thanks.
fuzzy
"Gee Look Ma! Someone''''s Figured Out The Integrate of the Derivative of Pi to the Second Divided by the Golden Ratio!" -My Southern Friend
PCX files can be 8-bit or 24-bit. 24-bit files have no palette, 8-bit files do.
24-bit files are RLE RGB bytes, but they are not inter-leaved. The RGB
planes are separated. They separate the planes because it helps with compression.
For example, if you had two red pixels, (FF 01 02) and (FF 01 02), it would
be much better to organize the bits like FF FF, 01 01, 02 02, so it compresses
better.
24-bit files are RLE RGB bytes, but they are not inter-leaved. The RGB
planes are separated. They separate the planes because it helps with compression.
For example, if you had two red pixels, (FF 01 02) and (FF 01 02), it would
be much better to organize the bits like FF FF, 01 01, 02 02, so it compresses
better.
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