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* docs/CHANGES: Document SHZ fix.

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* src/truetype/ttinterp.c (Ins_SHZ): SHZ doesn't move phantom
points.
This commit is contained in:
Werner Lemberg 2007-01-21 09:46:37 +00:00
parent 011d111218
commit 555258fffe
3 changed files with 34 additions and 9 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2007-01-21 Werner Lemberg <wl@gnu.org>
* docs/CHANGES: Document SHZ fix.
2007-01-21 George Williams <gww@silcom.com>
* src/truetype/ttinterp.c (Ins_SHZ): SHZ doesn't move phantom
points.
2007-01-21 Werner Lemberg <wl@gnu.org>
* src/sfnt/ttmtx.c (tt_face_get_metrics)

10
docs/CHANGES
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@ -1,3 +1,13 @@
CHANGES BETWEEN 2.3.0 and 2.3.1
I. IMPORTANT BUG FIXES
- The TrueType interpreter sometimes returned incorrect horizontal
metrics due to a bug in the handling of the SHZ instruction.
======================================================================
CHANGES BETWEEN 2.3.0 and 2.2.1
I. IMPORTANT BUG FIXES

24
src/truetype/ttinterp.c
View File

@ -2769,12 +2769,12 @@
CUR.GS.single_width_cutin = (FT_F26Dot6)args[0];
/* XXX: UNDOCUMENTED! or bug in the Windows engine? */
/* */
/* It seems that the value that is read here is */
/* expressed in 16.16 format rather than in font */
/* units. */
/* */
/* XXX: UNDOCUMENTED! or bug in the Windows engine? */
/* */
/* It seems that the value that is read here is */
/* expressed in 16.16 format rather than in font */
/* units. */
/* */
#define DO_SSW \
CUR.GS.single_width_value = (FT_F26Dot6)( args[0] >> 10 );
@ -5430,7 +5430,7 @@
last_point = 0;
}
/* XXX: UNDOCUMENTED! SHC does touch the points */
/* XXX: UNDOCUMENTED! SHC touches the points */
for ( i = first_point; i <= last_point; i++ )
{
if ( zp.cur != CUR.zp2.cur || refp != i )
@ -5466,8 +5466,14 @@
if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) )
return;
if ( CUR.zp2.n_points > 0 )
last_point = (FT_UShort)(CUR.zp2.n_points - 1);
/* XXX: UNDOCUMENTED! SHZ doesn't move the phantom points. */
/* Twilight zone has no contours, so use `n_points'. */
/* Normal zone's `n_points' includes phantoms, so must */
/* use end of last contour. */
if ( CUR.GS.gep2 == 0 && CUR.zp2.n_points > 0 )
last_point = (FT_UShort)( CUR.zp2.n_points - 1 );
else if ( CUR.GS.gep2 == 1 && CUR.zp2.n_contours > 0 )
last_point = (FT_UShort)( CUR.zp2.contours[CUR.zp2.n_contours - 1] );
else
last_point = 0;