Re: Image Manipulation

[Christian W. <cwa...@gm...>]

Hi Andrea

Apologies for the late response, I've been very busy.

I mainly have one thing to say about your suggestions: I can add all of them to my to-do list, but that list is pretty long and gets longer by the day, so don't hold your breath. I'm sorry, but I have little time and other priorities these days.

That said...

> I think you should release a new version (0.2.8) which includes all the
> latest innovations added to the 0.2.7 in recent years.

That's probably a good idea, seeing as I'm unlikely to complete the stuff I was planning to put into the next release anytime soon. (I don't even remember what it all was - there was the extension module system, anything more?)

> In particular, to slightly modify the "drawimage" adding the ability to use
> some combination operation in addition to the current mode.

Looks doable, you'd probably have to implement most of the pixel pushing yourself, as SDL's blend modes are a bit limited.

> Another useful thing: "rotateimage" (and I think also simple to implement)
> to rotate an image (even with 90 degree angles would already be useful, but
> with any angle would be the best!)

Same here, SDL doesn't offer that as far as I can see.

> Even a "getpixel(x, y)" would not hurt, could return (r, g, b, alpha) of a
> given pixel, this could permit to write in lua other manipulation functions
> not directly implemented (or "missed" yet) in pipmak.

That shouldn't be hard, as we only have a limited number of pixel formats.

> The last thing, though perhaps is the most complex, the implementation of
> depth buffer in the positioning of 3d patches ....  I had tried, but with
> poor results (sigh!), so they I forced to do complex calculations to
> determine the order in which I have to draw the patches ...

No idea, I never looked into that.

 -Christian