Font scaling [Was: XML file format - Linux vs Windows]

On Wed, 19 Jun 2002, Ian Britten wrote:
On Tue, 18 Jun 2002, Lars Clausen wrote:
On Tue, 18 Jun 2002, Ian Britten wrote:
I don't want to talk about fonts... :-< (Courier seems to work ok :-/)

Fonts are a sore spot indeed.  We're going to see what using Pango gives
us.  If we don't get consistent scaling there, we shall have to do
scaling by hand, even if small fonts will look uglier.

[ Me again... Please CC me if possible ]

Have you looked at Freetype2?  I think it more directly deals with your
problem then Pango would (which seems to have lots more than just font
rendering in it).

We have, and I did in fact make a renderer that uses it.  If you take the
0.90 tarball and compile with --enable-freetype, you can see pretty
antialiased TrueType fonts.  However, I failed to get even that to scale
linearly.  I've tried without hinting and bitmaps, but the scaling is still
odd.  An example diagram is at
and a screenshot of the freetype/libart display at
The purple boxes are the bounding boxes, which scale linearly.

Just my $0.02
(I'll happily answer any questions anyone has - It'd be a small price
to pay for your great program!)

If you want to fiddle with it, look in lib/font.c and and
app/render_libart.c.  I'm running out of ideas for what to do.


Lars Clausen (| Hårdgrim of Numenor
"I do not agree with a word that you say, but I   |----------------------------
will defend to the death your right to say it."   | Where are we going, and
    --Evelyn Beatrice Hall paraphrasing Voltaire  | what's with the handbasket?

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