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Re: Apple II graphics file format



Andy McFadden wrote:

I don't believe the image is compressed -- it's 8192 bytes long.  The
magic location $78 is in a "screen hole".

All right, the source of my confusion was that $78 in the image I am examining has a 2, which was 560x192 based on the table, but that is too large to fit in 8192 bytes (actually, my file is 8184 bytes, for whatever reason). However, Ciderpress is giving me a 280x192.

I guess the real question I should be asking is--how did the Apple II display hardware work to create color images?

I am porting an slow & buggy old Applesoft game off the Apple, and I am debating how to deal with the graphics stored in bitmap files. In particular, I have a color image with text, but the text looks color-tinted and funny; I would like to make the text all white while preserving the color elsewhere.

Likely I will have to do that by hand.

Thanks for the help,

-Zac