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* src/truetype/ttgload.c (load_truetype_glyph): Handle the case

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where the number of contours in a simple glyph is zero (and which
does contain an entry in the `glyf' table).  This fixes Savannah bug
#21990.
This commit is contained in:
Werner Lemberg 2008-01-10 08:47:08 +00:00
parent 75696860ea
commit bf391cb858
2 changed files with 26 additions and 18 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
2008-01-10 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (load_truetype_glyph): Handle the case
where the number of contours in a simple glyph is zero (and which
does contain an entry in the `glyf' table). This fixes Savannah bug
#21990.
2008-01-04 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Formatting suggested by Sean McBride.

37
src/truetype/ttgload.c
View File

@ -4,7 +4,7 @@
/* */
/* TrueType Glyph Loader (body). */
/* */
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -1217,10 +1217,24 @@
offset = tt_face_get_location( face, glyph_index,
(FT_UInt*)&loader->byte_len );
if ( loader->byte_len == 0 )
if ( loader->byte_len > 0 )
{
error = face->access_glyph_frame( loader, glyph_index,
loader->glyf_offset + offset,
loader->byte_len );
if ( error )
goto Exit;
opened_frame = 1;
/* read first glyph header */
error = face->read_glyph_header( loader );
if ( error )
goto Exit;
}
if ( loader->byte_len == 0 || loader->n_contours == 0 )
{
/* as described by Frederic Loyer, these are spaces or */
/* the unknown glyph. */
loader->bbox.xMin = 0;
loader->bbox.xMax = 0;
loader->bbox.yMin = 0;
@ -1263,19 +1277,6 @@
goto Exit;
}
error = face->access_glyph_frame( loader, glyph_index,
loader->glyf_offset + offset,
loader->byte_len );
if ( error )
goto Exit;
opened_frame = 1;
/* read first glyph header */
error = face->read_glyph_header( loader );
if ( error )
goto Exit;
TT_LOADER_SET_PP( loader );
/***********************************************************************/
@ -1284,7 +1285,7 @@
/* if it is a simple glyph, load it */
if ( loader->n_contours >= 0 )
if ( loader->n_contours > 0 )
{
error = face->read_simple_glyph( loader );
if ( error )