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* src/pshinter/pshalgo3.c (psh3_glyph_compute_extrema): Skip 

contours with only a single point to avoid segfault.

* src/autohint/ahtypes.h (AH_OPTION_NO_STRONG_INTERPOLATION):
Removed since unused.
This commit is contained in:
Werner Lemberg 2003-05-28 05:52:05 +00:00
parent f79a7ae0b0
commit 4919dc7cf8
6 changed files with 31 additions and 20 deletions
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10
ChangeLog
View File

@ -1,3 +1,13 @@
2003-05-28 Werner Lemberg <wl@gnu.org>
* src/pshinter/pshalgo3.c (psh3_glyph_compute_extrema): Skip
contours with only a single point to avoid segfault.
2003-05-24 Werner Lemberg <wl@gnu.org>
* src/autohint/ahtypes.h (AH_OPTION_NO_STRONG_INTERPOLATION):
Removed since unused.
2003-05-21 Werner Lemberg <wl@gnu.org>
* include/freetype/config/ftstdlib.h (ft_strcat): New wrapper macro

7
src/autohint/ahglobal.c
View File

@ -27,6 +27,8 @@
#define MAX_TEST_CHARACTERS 12
/* cf. AH_BLUE_XXX constants in ahtypes.h */
static
const char* blue_chars[AH_BLUE_MAX] =
{
@ -93,8 +95,8 @@
goto Exit;
/* we compute the blues simply by loading each character from the */
/* 'blue_chars[blues]' string, then compute its top-most and */
/* bottom-most points */
/* 'blue_chars[blues]' string, then compute its top-most or */
/* bottom-most points (depending on `AH_IS_TOP_BLUE') */
AH_LOG(( "blue zones computation\n" ));
AH_LOG(( "------------------------------------------------\n" ));
@ -103,6 +105,7 @@
{
const char* p = blue_chars[blue];
const char* limit = p + MAX_TEST_CHARACTERS;
FT_Pos *blue_ref, *blue_shoot;

9
src/autohint/ahglyph.c
View File

@ -996,8 +996,8 @@
/* we do this by inserting fake segments when needed */
if ( dimension == 0 )
{
AH_Point point = outline->points;
AH_Point point_limit = point + outline->num_points;
AH_Point point = outline->points;
AH_Point point_limit = point + outline->num_points;
FT_Pos min_pos = 32000;
FT_Pos max_pos = -32000;
@ -1067,6 +1067,7 @@
segments = outline->vert_segments;
major_dir = AH_DIR_UP;
p_num_segments = &outline->num_vsegments;
ah_setup_uv( outline, AH_UV_FXY );
}
}
@ -1485,7 +1486,7 @@
edge->dir = up_dir;
else if ( ups < downs )
edge->dir = - up_dir;
edge->dir = -up_dir;
else if ( ups == downs )
edge->dir = 0; /* both up and down! */
@ -1579,7 +1580,7 @@
return;
}
/* compute for each horizontal edge, which blue zone is closer */
/* for each horizontal edge search the blue zone which is closest */
for ( ; edge < edge_limit; edge++ )
{
AH_Blue blue;

12
src/autohint/ahhint.c
View File

@ -699,6 +699,10 @@
/* glyph is not an m), so the potential for unwanted distortion is */
/* relatively low. */
/* We don't handle horizontal edges since we can't easily assure that */
/* the third (lowest) stem aligns with the base line; it might end up */
/* one pixel higher or lower. */
n_edges = edge_limit - edges;
if ( !dimension && ( n_edges == 6 || n_edges == 12 ) )
{
@ -1580,7 +1584,7 @@
FT_SubGlyph subglyph;
start_point = gloader->base.outline.n_points;
start_point = gloader->base.outline.n_points;
/* first of all, copy the subglyph descriptors in the glyph loader */
error = ah_loader_check_subglyphs( gloader, num_subglyphs );
@ -1663,8 +1667,8 @@
FT_Vector* p2;
if ( start_point + k >= num_base_points ||
l >= (FT_UInt)num_new_points )
if ( start_point + k >= num_base_points ||
l >= (FT_UInt)num_new_points )
{
error = AH_Err_Invalid_Composite;
goto Exit;
@ -1822,7 +1826,7 @@
/* adust x_scale
*/
if ( fitted < scaled )
x_scale -= x_scale/50; /* x_scale*0.98 with integers */
x_scale -= x_scale / 50; /* x_scale*0.98 with integers */
}
}
}

10
src/autohint/ahtypes.h
View File

@ -76,16 +76,6 @@ FT_BEGIN_HEADER
#undef AH_OPTION_NO_WEAK_INTERPOLATION
/*************************************************************************/
/* */
/* If this option is defined, only weak interpolation will be used to */
/* place the points between edges. Otherwise, `strong' points are */
/* detected and later hinted through strong interpolation to correct */
/* some unpleasant artefacts. */
/* */
#undef AH_OPTION_NO_STRONG_INTERPOLATION
/*************************************************************************/
/* */
/* Undefine this macro if you don't want to hint the metrics. There is */

3
src/pshinter/pshalgo3.c
View File

@ -1261,6 +1261,9 @@
PSH3_Point point, before, after;
if ( glyph->contours[n].count == 0 )
continue;
point = first;
before = point;
after = point;