AuroraMiddleware/freetype
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Fix a serious bug in the TT hinter.

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* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Don't shift
points vertically before hinting.

* docs/CHANGES: Updated.

* src/cache/ftcglyph.c (FTC_GNode_UnselectFamily,
FTC_GCache_Lookup): A new try to fix comparison with zero.
This commit is contained in:
Werner Lemberg 2004-11-19 10:35:52 +00:00
parent bbdee28f75
commit b9ff415dfb
4 changed files with 17 additions and 5 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
2004-11-19 Werner Lemberg <wl@gnu.org>
Fix a serious bug in the TT hinter.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Don't shift
points vertically before hinting.
* docs/CHANGES: Updated.
* src/cache/ftcglyph.c (FTC_GNode_UnselectFamily,
FTC_GCache_Lookup): A new try to fix comparison with zero.
2004-11-16 Werner Lemberg <wl@gnu.org>
* builds/unix/configure.ac: Add `-fno-strict-aliasing' if gcc is

2
docs/CHANGES
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@ -13,6 +13,8 @@ LATEST CHANGES BETWEEN 2.1.10 and 2.1.9
NPUSHW instruction wasn't skipped correctly in IF clauses. Some
fonts like `Helvetica 75 Bold' failed.
- Another bug in handling TrueType hints caused many distortions.
II. IMPORTANT CHANGES

4
src/cache/ftcglyph.c vendored
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@ -47,7 +47,7 @@
gnode->family = NULL;
if ( family && --(FT_Long)(family->num_nodes) <= 0 )
if ( family && --family->num_nodes == 0 )
FTC_FAMILY_FREE( family, cache );
}
@ -189,7 +189,7 @@
error = FTC_Cache_Lookup( FTC_CACHE( cache ), hash, query, anode );
if ( --(FT_Long)(family->num_nodes) <= 0 )
if ( --family->num_nodes == 0 )
FTC_FAMILY_FREE( family, cache );
}
return error;

4
src/truetype/ttgload.c
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@ -797,12 +797,10 @@
if ( IS_HINTED( load->load_flags ) )
{
FT_Pos x = zone->org[n_points-4].x;
FT_Pos y = zone->org[n_points-2].y;
x = FT_PIX_ROUND( x ) - x;
y = FT_PIX_ROUND( y ) - y;
translate_array( n_points, zone->org, x, y );
translate_array( n_points, zone->org, x, 0 );
org_to_cur( n_points, zone );