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[Devel] Fwd: Bug#179450: FreeType 2.1.4rc1: Misaligned font spacing/sizi
[Devel] Fwd: Bug#179450: FreeType 2.1.4rc1: Misaligned font spacing/sizing
Thu, 13 Feb 2003 02:32:03 +0800
[Hurray! The FreeType mailing lists are back up and running again!
Portion of this message was originally sent on February 3, 2003.]
The latest FreeType CVS (as of 2003-01-31, which I just realized today
(2003-02-13) that it is 2.1.4rc1) appears to have deteriorated
bytecode-enabled rendering. Latin text (e.g. those from Times News
Roman, Andale Mono, etc.) looks a bit weird, but by the time I noticed
it (on my CRT monitor with non-sub-pixel rendering), I had already
uploaded it to Debian unstable. Oh well. :-)
Anyhow, as expected, other Debian users noticed the difference and
filed a bug report, with screenshots and all.
2.1.3-8 = CVS update as of 2003-01-31, bytecode interpreter on.
2.1.3-7 = CVS update as of 2003-01-22, with David Chester's latest
bluescale2 patch (2003-01-23 on the devel mailing list);
bytecode interpreter on.
It seems to be caused by this segment in src/ftobjs.c:
dim_x = ( char_width * horz_resolution ) / 72;
dim_y = ( char_height * vert_resolution ) / 72;
metrics->x_ppem = (FT_UShort)( (dim_x+32) >> 6 );
metrics->y_ppem = (FT_UShort)( (dim_y+32) >> 6 );
dim_x = ( ( ( char_width * horz_resolution ) / 72 ) + 32 ) & -64;
dim_y = ( ( ( char_height * vert_resolution ) / 72 ) + 32 ) & -64;
metrics->x_ppem = (FT_UShort)( dim_x >> 6 );
metrics->y_ppem = (FT_UShort)( dim_y >> 6 );
This would work fine with autohinted glyphs, but not for
bytecode-interpreter hinted ones.
Thanks in advance!
----- Forwarded message from Matt Biddulph <address@hidden> -----
Date: Sun, 2 Feb 2003 11:55:24 +0000
From: address@hidden (Matt Biddulph)
Subject: Bug#179450: libfreetype6: Misaligned font spacing/sizing
Between 2.1.3-7 and 2.1.3-8, it appears that horizontal font sizing and
spacing got broken. These galeon screenshots show the problem:
Look for example at the word 'declared' - the letter 'e' is too thin and
has too much whitespace on the right.
I have subpixel rendering in "rgb" mode enabled.
-- System Information:
Debian Release: testing/unstable
Kernel: Linux cat 2.4.20 #2 Sat Jan 25 15:20:00 GMT 2003 i686
Locale: LANG=C, LC_CTYPE=C
Versions of packages libfreetype6 depends on:
ii libc6 2.3.1-10 GNU C Library: Shared libraries an
ii zlib1g 1:1.1.4-9 compression library - runtime
----- End forwarded message -----
Anthony Fok Tung-Ling
ThizLinux Laboratory <address@hidden> http://www.thizlinux.com/
Debian Chinese Project <address@hidden> http://www.debian.org/intl/zh/
Come visit Our Lady of Victory Camp! http://www.olvc.ab.ca/
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