preview and birdseye

[Boudewijn Rempt]

On Wednesday 04 January 2006 20:42, Casper Boemann wrote:
> On Wednesday 04 January 2006 20:36, Boudewijn Rempt wrote:
> > On Wednesday 04 January 2006 20:31, Cyrille Berger wrote:
> > > And I still fail to see how this can be faster, maybe more accurate for
> > > the "oil painter", I still don't see how it can be faster than reducing
> > > the image, and then applying the filter.
> >
> > The best plan would be to read the section of the layer shown in the
> > preview at 1:1 to a temporary paint device, filter that, and use toQImage
> > to put it on the display.
>
> That would be slow
>

But it's the only accurate thing; and if the preview area is small and the 
preview zoom 1:1 initially, then it wouldn't be all that slow. Even we can 
filter a 200x150 pixels paint device at a reasonable speed.

> > No need for KisImage's here, of course, unless we
> > want to show the effect of the filter on the layer in context. But I
> > don't think that's necessary.
>
> Agree

-- 
Boudewijn Rempt 
http://www.valdyas.org/fading/index.cgi
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