[Digikam-devel] [Bug 149358] New: digikam is (much) slower to rotate photos than kuickshow

[Alain Knaff]

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http://bugs.kde.org/show_bug.cgi?id=149358         
           Summary: digikam is (much) slower to rotate photos than kuickshow
           Product: digikam
           Version: unspecified
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: kde kde lka org lu


Version:           0.9.2-final (using KDE 3.5.7, Kubuntu (gutsy) 4:3.5.7-1ubuntu14)
Compiler:          Target: i486-linux-gnu
OS:                Linux (i686) release 2.6.22-10-generic

Kuickshow has near-instantaneous photo rotate. Would it be possible to get that same algorithm in digikam? I'm not sure how kuickshow is doing it (maybe only rotate the thumbnail in real time, and then do the real rotation in the background while the user is busy with something else?), but it feels *much* snappier than digikam when rotating photos.

Moreover, when batch-rotating several photos, would it be possible to spawm 2 threads, in order to take advantage of dual-core processors?