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[base] Fix integer overflows in dd5718c7d6. 

* src/base/ftoutln.c (FT_Outline_EmboldenXY): Use FT_MulDiv.
This commit is contained in:
Alexei Podtelezhnikov 2012-11-15 20:50:59 -05:00
parent 3a55340029
commit 0690d3d7b5
2 changed files with 8 additions and 2 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2012-11-15 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Fix integer overflows in dd5718c7d67a.
* src/base/ftoutln.c (FT_Outline_EmboldenXY): Use FT_MulDiv.
2012-11-15 Werner Lemberg <wl@gnu.org>
[autofit] Trace stem widths.

4
src/base/ftoutln.c
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@ -968,13 +968,13 @@
if ( orientation == FT_ORIENTATION_TRUETYPE )
q = -q;
if ( xstrength * q < d * l )
if ( FT_MulDiv( xstrength, q, l ) < d )
shift.x = FT_MulDiv( shift.x, xstrength, d );
else
shift.x = FT_MulDiv( shift.x, l, q );
if ( ystrength * q < d * l )
if ( FT_MulDiv( ystrength, q, l ) < d )
shift.y = FT_MulDiv( shift.y, ystrength, d );
else
shift.y = FT_MulDiv( shift.y, l, q );