Re: 13.47 regtests

[Phil Holmes]

----- Original Message ----- 
From: "Werner LEMBERG" <address@hidden>
To: <address@hidden>
Cc: <address@hidden>; <address@hidden>
Sent: Friday, February 04, 2011 4:52 PM
Subject: Re: 13.47 regtests


> > > > The initial report from my pixel-by-pixel comparison is that the
> > > > treble clef in .47 is slightly different from previously.  The
> > > > lower downstroke is thinner and the blob on the end of it is
> > > > slightly different.  I've attached a colour coded difference
> > > > image, where the common pixels are coloured red, and the
> > > > differences are grey - look at the lower part of the clef.
> > > >
> > > > Is this intended?
> >
> > Werner made changes in the clef to "make the code more readable".
> > It didn't look to me like he was trying to make changes, but because
> > the code was refactored, it could have made small changes.
> >
> > See commit 662f7fa0284ab9fae27942934c41354d64a5958e
>
> No, it's exactly the same code, I've just checked.  Additionally, this
> change happened a long time ago.
>
>
>    Werner

I've checked on PDF output, and the clef shapes are identical between .46 
and .47 - it's the PNG generation step that is making a very slight (but 
detectable) difference in the treble clefs, and in some of the flag shapes. 
I wonder whether this is an artifact related to 
http://code.google.com/p/lilypond/issues/detail?id=1429 or an update to one 
of the postscript->PNG library conversion routines.  Not convinced it's 
worth getting too worried about now I see it's not present in the PDF.

--
Phil Holmes