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List: kde-core-devel
Subject: Re: Review Request: KColorSpace::KHCY::KHCY(const & QColor)
From: "Albert Astals Cid" <aacid () kde ! org>
Date: 2009-10-18 14:46:40
Message-ID: 20091018144640.4800.70642 () localhost
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http://reviewboard.kde.org/r/868/#review2701
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Michael, should this review request be marked as closed?
- Albert
On 2009-06-21 22:44:32, Michael Kreitzer wrote:
>
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> This is an automatically generated e-mail. To reply, visit:
> http://reviewboard.kde.org/r/868/
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>
> (Updated 2009-06-21 22:44:32)
>
>
> Review request for kdelibs.
>
>
> Summary
> -------
>
> The constructor KColorSpace::KHCY::KHCY(const & QColor) has a floating point \
> precision error exposed by the -ftree-pre flag in gcc 4.4 which is enabled with -O2 \
> optimizations. The result is an invalid chroma calculation in the corner case of \
> full white (1.0, 1.0, 1.0 in rgb). The patch works around this by performing an \
> integer comparison of r, g, and b and setting chroma to 0.0 if all 3 are equal.
>
> This addresses bugs 194703 and 195522.
> https://bugs.kde.org/show_bug.cgi?id=194703
> https://bugs.kde.org/show_bug.cgi?id=195522
>
>
> Diffs
> -----
>
> trunk/KDE/kdelibs/kdeui/colors/kcolorspaces.cpp 985087
>
> Diff: http://reviewboard.kde.org/r/868/diff
>
>
> Testing
> -------
>
> This patch corrects the test case code in bug 195522. It also removes all color \
> errors when applied to my system wide kdelibs library.
>
> Thanks,
>
> Michael
>
>
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