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[truetype] Fix IP instruction if x_ppem != y_ppem. 

* src/truetype/ttinterp.c (Ins_IP): Scale `orus' coordinates
properly.
This commit is contained in:
Tobias Ringström 2012-01-04 18:27:16 +01:00 committed by Werner Lemberg
parent c017f072e4
commit 21472de11d
2 changed files with 34 additions and 3 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2012-01-04 Tobias Ringström <tobias@ringis.se>
[truetype] Fix IP instruction if x_ppem != y_ppem.
* src/truetype/ttinterp.c (Ins_IP): Scale `orus' coordinates
properly.
2012-01-02 Werner Lemberg <wl@gnu.org>
Fix tracing message for `loca' table.

30
src/truetype/ttinterp.c
View File

@ -4,7 +4,7 @@
/* */
/* TrueType bytecode interpreter (body). */
/* */
/* Copyright 1996-2011 */
/* Copyright 1996-2012 */
/* by David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -6575,9 +6575,21 @@
if ( twilight )
old_range = CUR_Func_dualproj( &CUR.zp1.org[CUR.GS.rp2],
orus_base );
else
else if ( CUR.metrics.x_scale == CUR.metrics.y_scale )
old_range = CUR_Func_dualproj( &CUR.zp1.orus[CUR.GS.rp2],
orus_base );
else
{
FT_Vector vec;
vec.x = TT_MULFIX( CUR.zp1.orus[CUR.GS.rp2].x - orus_base->x,
CUR.metrics.x_scale );
vec.y = TT_MULFIX( CUR.zp1.orus[CUR.GS.rp2].y - orus_base->y,
CUR.metrics.y_scale );
old_range = CUR_fast_dualproj( &vec );
}
cur_range = CUR_Func_project ( &CUR.zp1.cur[CUR.GS.rp2], cur_base );
}
@ -6601,8 +6613,20 @@
if ( twilight )
org_dist = CUR_Func_dualproj( &CUR.zp2.org[point], orus_base );
else
else if ( CUR.metrics.x_scale == CUR.metrics.y_scale )
org_dist = CUR_Func_dualproj( &CUR.zp2.orus[point], orus_base );
else
{
FT_Vector vec;
vec.x = TT_MULFIX( CUR.zp2.orus[point].x - orus_base->x,
CUR.metrics.x_scale );
vec.y = TT_MULFIX( CUR.zp2.orus[point].y - orus_base->y,
CUR.metrics.y_scale );
org_dist = CUR_fast_dualproj( &vec );
}
cur_dist = CUR_Func_project ( &CUR.zp2.cur[point], cur_base );