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[ft-devel] Re: [bug #15785] character "7" in verdana regular 10px with h

From: Rogier van Dalen
Subject: [ft-devel] Re: [bug #15785] character "7" in verdana regular 10px with hinting without antialiasing is bad rendered.
Date: Sun, 19 Feb 2006 23:29:23 +0100

Dear all,

My TrueTypeViewer program
(<>) does not
have a monochrome renderer. However, an inspection of the right side
of the slanted stem of "seven" at 13 PPEM seems to show that it passes
the centre of the pixel at (3.469, 0.5). A very near miss.
This indicates that the TrueType rasteriser is right. The Windows
rasteriser might have a rounding error in the interpreter or in the
actual rasteriser. I didn't look into it very deeply though.
Hope this helps!


On 2/19/06, Werner LEMBERG <address@hidden> wrote:
> > I tried to dump the outline of the hinted glyph under windows and it
> > is exactly the same as what we get from freetype.  Is this how you
> > know that they are different bugs?  (It's my first win32 app and I'm
> > not sure whether it works correctly...)
> >
> > So, could it be a bug of the monochrone raster?
> Rogier, please have a look at this discussion, and please check with
> your TrueType engine whether you get the same result.
> Thanks in advance!
>      Werner

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