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[cff] Correct `max_cid' from CID array length to max CID. 

See Savannah bug #30975.

* src/cff/cffload.c (cff_charset_compute_cids): Don't increment
max_cid after detecting max CID.  The array CFF_Charset->cids
is allocated by max_cid + 1.
(cff_charset_cid_to_gindex): Permit CID is less than or equal
to CFF_Charset->max_cid.
* src/cff/cffobjs.c (cff_face_init): FT_Face->num_glyphs is
calculated as CFF_Charset->max_cid + 1.
This commit is contained in:
suzuki toshiya 2010-09-20 01:22:34 +09:00
parent 643d49df09
commit b3e1954d16
3 changed files with 16 additions and 4 deletions
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13
ChangeLog
View File

@ -1,3 +1,16 @@
2010-09-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cff] Correct `max_cid' from CID array length to max CID.
See Savannah bug #30975.
* src/cff/cffload.c (cff_charset_compute_cids): Don't increment
max_cid after detecting max CID. The array CFF_Charset->cids
is allocated by max_cid + 1.
(cff_charset_cid_to_gindex): Permit CID is less than or equal
to CFF_Charset->max_cid.
* src/cff/cffobjs.c (cff_face_init): FT_Face->num_glyphs is
calculated as CFF_Charset->max_cid + 1.
2010-09-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[truetype] Sanitize the broken offsets in `loca'.

5
src/cff/cffload.c
View File

@ -781,9 +781,8 @@
for ( i = 0; i < num_glyphs; i++ )
if ( charset->sids[i] > max_cid )
max_cid = charset->sids[i];
max_cid++;
if ( FT_NEW_ARRAY( charset->cids, max_cid ) )
if ( FT_NEW_ARRAY( charset->cids, max_cid + 1 ) )
goto Exit;
/* When multiple GIDs map to the same CID, we choose the lowest */
@ -807,7 +806,7 @@
FT_UInt result = 0;
if ( cid < charset->max_cid )
if ( cid <= charset->max_cid )
result = charset->cids[cid];
return result;

2
src/cff/cffobjs.c
View File

@ -677,7 +677,7 @@
/* compute number of glyphs */
if ( dict->cid_registry != 0xFFFFU )
cffface->num_glyphs = cff->charset.max_cid;
cffface->num_glyphs = cff->charset.max_cid + 1;
else
cffface->num_glyphs = cff->charstrings_index.count;