Review Request 129851: JpegCreator: Use Qt's support for fast downscaling and auto-rotation

[Alex Bikadorov]

-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://git.reviewboard.kde.org/r/129851/#review103212
-----------------------------------------------------------



FYI: https://bugs.kde.org/show_bug.cgi?id=379817

- Alex Bikadorov


On Jan. 19, 2017, 1:06 p.m., Alexander Volkov wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/129851/
> -----------------------------------------------------------
> 
> (Updated Jan. 19, 2017, 1:06 p.m.)
> 
> 
> Review request for Plasma.
> 
> 
> Repository: kio-extras
> 
> 
> Description
> -------
> 
> QImageReader::setScaledSize() allows to use fast downscaling
> for jpeg images (by setting jpeg_decompress_struct::scale_denom).
> QImageReader::setQuality(0) sets dct_method to JDCT_IFAST and
> do_fancy_upsampling to FALSE, although these parameters don't
> really influence on decoding speed, also as do_block_smoothing
> which is not used by Qt.
> 
> QImageReader::setAutoTransform() allows to apply the rotation
> from EXIF data. It was introduced in Qt 5.5, so bump the
> required Qt version.
> 
> 
> Diffs
> -----
> 
>   CMakeLists.txt be305274984321b93e05feeeb6d09490b33a43cc 
>   thumbnail/CMakeLists.txt 92eb3c7ae98660eb00e33fbe608de1580ea75912 
>   thumbnail/jpegcreator.h 5cab30ff6a0881863ec66d739063f6dbfb4a48f7 
>   thumbnail/jpegcreator.cpp 9191fbacd21c65c9fc845fd7c77365005cd8df00 
> 
> Diff: https://git.reviewboard.kde.org/r/129851/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Alexander Volkov
> 
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/plasma-devel/attachments/20170514/f4423820/attachment-0001.html>