[poppler] Migrating poppler to liblcms2 from liblcms1

[Koji Otani]

Hi.

I mesured performance with some PDF files.
Poppler with lcms2 was slower than one with lcms1 by 5 - 10 %.
Is it not acceptable?
-------
Koji Otani

From: Koji Otani <sho at bbr.jp>
Subject: Re: [poppler] Migrating poppler to liblcms2 from liblcms1
Date: Mon, 16 Jan 2012 15:09:02 +0900 (JST)
Message-ID: <20120116.150902.69540157.sho at bbr.jp>

sho> From: Albert Astals Cid <aacid at kde.org>
sho> Subject: Re: [poppler] Migrating poppler to liblcms2 from liblcms1
sho> Date: Fri, 13 Jan 2012 18:47:10 +0100
sho> Message-ID: <2206093.FOZ66yNrbT at xps>
sho> 
sho> aacid> El Divendres, 13 de gener de 2012, a les 18:39:56, Koji Otani va escriure:
sho> aacid> > Sorry, There is a silly bug in previous path.
sho> aacid> > Please use this patch.
sho> aacid> 
sho> aacid> I sent a similar patch ages ago to the list, then i realized lcms2 was giving 
sho> aacid> us much worse performance numbers than lcms1 and dropped the patch. Have you 
sho> aacid> done some measuing of the performance?
sho> aacid> 
sho> 
sho> Sorry, I didn't know that. I'll do some more investigation.
sho> ---
sho> Koji Otani.
sho> 
sho> aacid> 
sho> aacid> > --------
sho> aacid> > Koji Otani.
sho> aacid> > 
sho> aacid> > From: Koji Otani <sho at bbr.jp>
sho> aacid> > Subject: [poppler] Migrating poppler to liblcms2 from liblcms1
sho> aacid> > Date: Fri, 13 Jan 2012 18:26:25 +0900 (JST)
sho> aacid> > Message-ID: <20120113.182625.27577732.sho at bbr.jp>
sho> aacid> > 
sho> aacid> > sho> Hi,
sho> aacid> > sho> I'm Koji Otani
sho> aacid> > sho>
sho> aacid> > sho> poppler is using liblcms1 for color-management.
sho> aacid> > sho> But liblcms1 is not maintained any more upstream as it is
sho> aacid> > sho> replaced by liblcms2. liblcms1 has no good protection against
sho> aacid> > sho> crashes (segmentation faults) and issues with color accuracy.
sho> aacid> > sho>
sho> aacid> > sho> So, I think that we should poppler from liblcms1 to liblcms2.
sho> aacid> > sho>
sho> aacid> > sho> I made a patch to do so and attach it.
sho> aacid> > sho> It can also use liblcms1 for old platform.
sho> aacid> > sho>
sho> aacid> > sho> Please check it and apply it to the repository.
sho> aacid> > sho>
sho> aacid> > sho> Thanks in advance.
sho> aacid> > sho>
sho> aacid> > sho> ----------
sho> aacid> > sho> Koji Otani
sho> aacid> > sho>
sho> aacid> > sho>
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