This is a discussion on XIE example / was: Re: XCopyArea with scaling - Xwindows ; Kip Rugger wrote: > >> I'm afraid that's what you have to do. Most of the time you already have > >> the image on the client side, so you may not have to retrieve it. > >> There are ...
Kip Rugger wrote:
> >> I'm afraid that's what you have to do. Most of the time you already have
> >> the image on the client side, so you may not have to retrieve it.
> >> There are extensions (Render in particular) that might help you, but they
> >> are not available everywhere so you would need fallback code anyway.
> >> By the way, scaling raster images correctly is an non-trivial problem
> >> in itself (it's basically a resampling operation). You may want to
> >> think over exactly what result you would expect and why. Unless you are
> >> satisfied by mere pixel replication/elimination, of course
> > Ok. I'll used my own internal code that support resampling...X11 definitely
> >need some standard work to be up to date regarding other windowing system such as
> >MacOS, Windows, etc...There are so many lacks for rendering that cause performance penalties.
> This operation is easily done by the XIE extension, the FloGeometry
> function in particular.
.... and see http://lxr.mozilla.org/seamonkey/sou...src/xlib/XIE.c
for an example usage.
More references for XIE:
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