Review Request 113397: RAW preview in gwenview

[Martin Kyral]

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http://git.reviewboard.kde.org/r/113397/
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(Updated Oct. 30, 2013, 1:17 p.m.)


Review request for Gwenview and Aurélien Gâteau.


Changes
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fixes of the remarks


Repository: gwenview


Description
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This is a review of patch enabling raw support in gwenview. It uses KDcraw to extract the embedded jpeg preview (most of the raw formats contain it for the purposes of quick viewing the photos on the camera display) so it is fast, implementing was quite easy and theoretically it enables gwenview to support everything dcraw supports (practically we need to test more formats). The patch does not perform demosaicing and I don't think it shall - digikam, darktable or rawtherapee are much more suited for developing the 'digital negatives'.

The patch fixes BZ#158788

The patch enables support for Nikon NEF and NRW formats, Canon's CR2, Pentax PEF, Sony ARW and Adobe DNG. If you want to try another format, just adding it's MIME type to the list in lib/mimetypeutils.cpp shall be enough.

The patch as is contains just the basic functionality (generating proper thumbnails and viewing the raw images incl. EXIF metadata), but it is well usable. However, there is still a lot of stuff to do (see the commit message in the patch) so I'd appreciate any help.


Diffs (updated)
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  CMakeLists.txt 4dafb7e 
  lib/CMakeLists.txt c6ffe14 
  lib/document/loadingdocumentimpl.cpp fbad8ff 
  lib/gvlibraw.h PRE-CREATION 
  lib/gvlibraw.cpp PRE-CREATION 
  lib/gwenviewconfig.kcfg 231fd5e 
  lib/mimetypeutils.cpp 546346f 
  lib/thumbnailprovider/thumbnailgenerator.cpp 8b98904 

Diff: http://git.reviewboard.kde.org/r/113397/diff/


Testing
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Tested on some sample raw files taken from the camera reviews on http://www.photographyblog.com/ and bunch of my own photos. Nikon (tried D50, D70s, D90, D800 and Coolpix P7000), Canon (tried 7D, 5D Mark3 and 6D) and Pentax (K-X, K30) have the preview full-res, while Sony raw files (A900, A850, A58, Nex 3, Nex 6) have only 1616x1050.


Thanks,

Martin Kyral

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