🚀 go-pugleaf

I think I understand NXImages, but I'll tell you because you
understand these things.

I have an App, FLI-Play, which displays generated bitmap data. The
source image is data in VGA format, you know the sort of thing, 256
colour palette from 1/4 mil colours. So I take this data and convert
it to a 24 bit NXBitmapImageRep and drawAt the changed data to
screen. All fine so far. The problem is it's just so damn slow, the
transfer rate (NXPings are used to provide non jerky animation), is 2
to 8 frames to second, which is pretty lousy. 70 frames per second is
what I want really as the player can display more than FLI, so faster
the better.

I could make some improvements to the change optimization, but I
still won't get any better than a two times speed up I imagine. What
I could so with is a postscript context to composite from, but as I
understand it, what NXImages so is draw into an offscreen cache, and
use that for compositing later. I only use the image once, so this is
no use to me. I'm a bit stuck.

I'm using a NeXTstation colour non-turbo.

--- Hugh