GNU bug report logs - #17519
[PATCH] take into account QuantumScale when reading imagemagick images

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Package: emacs;

Reported by: Nicolas Léveillé <nicolas <at> uucidl.com>

Date: Sat, 17 May 2014 18:05:02 UTC

Severity: normal

Tags: patch

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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From: Nicolas Léveillé <nicolas <at> uucidl.com>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: 17519 <at> debbugs.gnu.org
Subject: bug#17519: [PATCH] take into account QuantumScale when reading imagemagick images
Date: Wed, 21 May 2014 21:31:32 +0200

I tested this patch on OSX Mavericks, with ImageMagick compiled with a quantum of Q32, and it works

Nicolas

On 2014-05-19, at 22:04 , Paul Eggert <eggert <at> cs.ucla.edu> wrote:

> Thanks for reporting this. Does the attached simpler patch fix the problem for you?  Dividing by QuantumRange instead of multiplying by QuantumScale avoids potential double-rounding problems in future versions of ImageMagick.
> <imagemagick.patch>
This bug report was last modified 11 years and 56 days ago.

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