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[sfnt] Return correct number of named instances for TTCs.

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Without this patch, requesting information for face index N returned
the data for face index N+1 (or index 0).

* src/sfnt/sfobjs.c (sfnt_init_face): Correctly adjust `face_index'
for negative `face_instance_index' values.
This commit is contained in:
Werner Lemberg 2017-01-01 10:43:41 +01:00
parent 24be60b5f1
commit 63765a8f2a
2 changed files with 14 additions and 0 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2017-01-01 Werner Lemberg <wl@gnu.org>
[sfnt] Return correct number of named instances for TTCs.
Without this patch, requesting information for face index N returned
the data for face index N+1 (or index 0).
* src/sfnt/sfobjs.c (sfnt_init_face): Correctly adjust `face_index'
for negative `face_instance_index' values.
2016-12-31 Werner Lemberg <wl@gnu.org>
*/*: Use hex numbers for errors in tracing messages.

4
src/sfnt/sfobjs.c
View File

@ -909,6 +909,10 @@
face_index = FT_ABS( face_instance_index ) & 0xFFFF;
/* value -(N+1) requests information on index N */
if ( face_instance_index < 0 )
face_index--;
if ( face_index >= face->ttc_header.count )
{
if ( face_instance_index >= 0 )