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truetype: Extend TT_Face->num_locations for broken TTFs.

This commit is contained in:
suzuki toshiya 2009-08-01 00:32:09 +09:00
parent e45e052279
commit 25dba9cfa8
3 changed files with 19 additions and 6 deletions
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13
ChangeLog
View File

@ -1,3 +1,16 @@
2009-07-31 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
truetype: Extend TT_Face->num_locations for broken TTFs.
* include/freetype/internal/tttypes.h:
TT_Face->num_locations are extended from FT_UInt
to FT_ULong, to stand with broken huge loca table.
Some people insists there are broken TTF including
the glyphs over 16-bit limitation, in PRC market.
* src/truetype/ttpload.c (tt_face_load_loca):
Remove unrequired 16-bit truncation for FT_UInt
TT_Face->num_locations.
2009-07-31 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
smooth: Fix some data types mismatching with their sources.

2
include/freetype/internal/tttypes.h
View File

@ -1401,7 +1401,7 @@ FT_BEGIN_HEADER
FT_Byte* vert_metrics;
FT_ULong vert_metrics_size;
FT_UInt num_locations;
FT_ULong num_locations; /* in broken TTF, gid > 0xFFFF */
FT_Byte* glyph_locations;
FT_Byte* hdmx_table;

10
src/truetype/ttpload.c
View File

@ -95,7 +95,7 @@
error = TT_Err_Invalid_Table;
goto Exit;
}
face->num_locations = (FT_UInt)( table_len >> shift );
face->num_locations = table_len >> shift;
}
else
{
@ -107,16 +107,16 @@
error = TT_Err_Invalid_Table;
goto Exit;
}
face->num_locations = (FT_UInt)( table_len >> shift );
face->num_locations = table_len >> shift;
}
if ( face->num_locations != (FT_UInt)face->root.num_glyphs )
if ( face->num_locations != (FT_ULong)face->root.num_glyphs )
{
FT_TRACE2(( "glyph count mismatch! loca: %d, maxp: %d\n",
face->num_locations, face->root.num_glyphs ));
/* we only handle the case where `maxp' gives a larger value */
if ( face->num_locations < (FT_UInt)face->root.num_glyphs )
if ( face->num_locations < (FT_ULong)face->root.num_glyphs )
{
FT_Long new_loca_len = (FT_Long)face->root.num_glyphs << shift;
@ -139,7 +139,7 @@
if ( new_loca_len <= dist )
{
face->num_locations = (FT_Long)face->root.num_glyphs;
face->num_locations = face->root.num_glyphs;
table_len = new_loca_len;
FT_TRACE2(( "adjusting num_locations to %d\n",