[bug-gs] poor font rendering on X11 with gs 8.14 |

[Ray Johnston]

Julian,

I'm sorry that a bug didn't get opened for you on this the first
time around. This *MAY* be a duplicate of some other bugs, but
for now I've entered it as a separate bug.

We've recently made some improvements/fixes in the gs8.1x code
and are getting ready to do an 8.15 release (once we are sure we
have a good set of fixes). Please try the GS_8_1X branch of the
cvs.ghostscript.com:/cvs/ghostscript root to see if that fixes
your issue, and if so, please post a follow-up to the bug.

The bug tracker entry is at:
    http://bugs.ghostscript.com/show_bug.cgi?id=687419

The list of other similar bugs is:

686858 	Wrong overshoots with -dTextAlphaBits=4 -dAlignToPixels=0
686940 	AlignToPixels=0 is ignored with -dNOCACHE
687318 	A poor TT grid fitting with TextAlphaBits>1
687332 	An StdHW, StdVW reconstruction is necesseary for TT grid ...
687376 	text rendering in 8.14 poorer than in 7.x in small sizes

Note that I observed much better quality with -dAlignToPixels=0
which is the default with -dTextAlphaBits>1 after 8.14.

Also, if this issue is not closed by the GS_8_1X patches, you will
have to post a test file, a command line and the results from
executing the following:

    gs -c matrix currentmatrix == quit

This will let us tell the actual effective resoultion of your X screen.

Regards,
Ray Johnston
_______________________________________________________________________
Julian Bradfield wrote:

> I sent the following in December, referring to 8.11. However, it's
> still the case with 8.14.  Nobody has any ideas?
> 
> -- start included message --
> I just looked at upgrading to ghostscript 8.11, but have been put off
> by the much poorer display on screen (using either gv, or plain gs
> with the x11alpha device). My test document is set in Palatino, which
> gets rendered with PalladioL; under 7.04, the anti-aliased rendering
> is fairly smooth and evenly weighted, but in 8.11 it appears uneven,
> and there are severe differences in the heights of letters: for
> example, in the small caps word PHONOLOGY, in 8.11 the O's are a whole
> screen pixel shorter than the other letters, although they should if
> anything be taller. But this is just an example; the general
> appearance is much worse.
> -- end included message --
> 
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> 
> 

-- 
Ray Johnston
Director of Engineering                          Tel: (714) 484-0376
Artifex Software Inc.                            Fax: (714) 220-1022
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