need to rotate a pixmap with smooth filtering

BlitzMax Forums/BlitzMax Programming/need to rotate a pixmap with smooth filtering

Yah, back in the days. I started out on Amos - Game Creator, that thing was a classic but unfortunately quite slow by todays standards and not kept up to date except for Amos `Professional`, then I moved onto BlitzBasic 2. I think they now have some kind of product called AmiBlitz now which is a community effort, or something.

Yeah I have all of the Mildred code, source, demo programs, website, documentations etc. 30,000 lines of assembler code ;-) Funny to see the in-line asm in that program up there, too. That was a neat capability for the orignal Blitz. And yes, very slightly disturbing that I still cherish that precious code archive, even though it's more or less useless now.

I don't think that code above will be too hard to modify. I understand about not using Max2D, I guess it would defeat the purpose. The code probably would almost work as it stands. You just need to add the alpha stuff. I'm thinking though that perhaps ultimately you want the kind of rotate that does things the other way around, where it draws only the pixels that are in the rotated rectangle, ie a source-based shape, rather than a destination-based shape as in the above code. But maybe you can adapt it.

FlameDuck: Hey, I think I have quite a few bits of code that YOU wrote for Mildred Mr Duck ;-) Guilty as charged.

Ahhhhhhhhhh, old times.