https://bugs.kde.org/show_bug.cgi?id=454206
Martin Kyral <sine.nom...@centrum.cz> changed:
What |Removed |Added
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CC| |sine.nom...@centrum.cz
--- Comment #2 from Martin Kyral <sine.nom...@centrum.cz> ---
Well, I just guess but with a grain of knowledge as I implemented the original
RAW support in gwenview back in 2013:
* the original KDCRaw-based implementation used the preview image bundled in
the raw file itself. That's fast as it's only reading the already prepared
preview data and treating them as jpeg (you can get the preview using dcraw -e
file.raw).
* it seems to me that alternative implementation using Qt Raw plugin and it is
being preferred
* from quick peek at the code I assume, that with Qt Raw plugin the trick with
using the preview that's aready present is not used (I am not sure if Qt Raw
plugin can do that)
* demosaicing takes time
I consider this to be a major regression.
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