Re: feature request: better caching

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On Wednesday 04 April 2007 18:59, Greg Troxel wrote:

> 1) Instead of caching/prefetching 1 file, cache up to some limit,
>    perhaps on the order of 10, so that when flipping among 5 to choose
>    which to keep it's faster.

Instead of the number of pictures, it should be better to fix a memory=20
usage limit.

> 2) Perhaps for all files, remember exif orientation, or read orientation
>    first before starting display.  Currently, I get the image showing up
>    in file orientation, and then flipped to the right orientation.  It
>    would be really nice if this were drawn right from the start.

I agree. Same for color correction. I posted something about this on the=20
user list, some weeks ago:

"Great feature, but a little bit slow. I know that it needs a lot of=20
computation, and waiting for the end of color correction before displaying=
=20
the picture could be annoying, but why don't you apply the profile in=20
background when preloading the next picture? Even if I wait enough,=20
switching to the next picture display it without correction, and then=20
apply the profile.

I think you could first preload the next picture, and once it is done,=20
start to preload the color corrected one; if the user switch to that=20
picture after the end of the color correction computation, then display=20
the color corrected picture; if the user switch to the new picture before=20
the end of the computation, then display the 'raw' picture, then continue=20
the color correction, and switch to the color corrected as soon as it is=20
available.

This may improve the usability. It could also be interesting, in addition=20
of all this, to add an option to wait before the end of color correction=20
before displaying a new picture."

=2D-=20
   Fr=E9d=E9ric

   http://www.gbiloba.org

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