[Digikam-devel] [Bug 132047] Faster display of images and/or prefetch wished for

[Stibbons]

https://bugs.kde.org/show_bug.cgi?id=132047


Stibbons <gaetan at xeberon.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gaetan at xeberon.net




--- Comment #38 from Stibbons <gaetan xeberon net>  2009-09-14 18:23:25 ---
Hello,

Here is what's happining in a unnamed commercial program:
- fast preview is generated as soon as possible for the current directory.
Undoubtly the jpeg thumbnails embedded in jpegs files and DNGs
- Fitted previews are then generated after all fast previews are generated.
This is used to display "fitted-to-screen" image with the embedded viewer
- Fullscale previews are then generated. To work on a file, all previews are
discarded and the file is completly decoded.

My Humble Opinion: histogram is not important for a folder, so when the user is
in a folder view, go fast and load all smalest/quickest previews available. If
user wishes to see histogram for image "n", when the panel is opened, decode
smallest preview if not available, and then decode for histogram. Don't worry
about the worst case. If the histogram is updating and the user click on edit,
just discard the histogram and load the complete file.

But smallest thumbnails shall be displayed to avoid "white squares of the
death" the quickest possible (and not only on the current folder, if I import
5500 photo in 120 differents folder, I don't expect to click on every folder
and wait for all the preview to have been generated).

-- 
Configure bugmail: https://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.