ref: 7d449436e61ea52b248c978b34eb33b1ea6c959a
parent: 35b081898694db8f7865d561ff8cc598a4fe9965
author: Werner Lemberg <[email protected]>
date: Sat Nov 2 07:36:37 EDT 2013
[truetype] Fix GETINFO opcode handling of subpixel hinting bits. * src/truetype/ttinterp.c (Ins_GETINFO): Don't request bit 6 set to get info on subpixel hinting. * docs/CHANGES: Updated.
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
2013-11-02 Werner Lemberg <[email protected]>
+ [truetype] Fix GETINFO opcode handling of subpixel hinting bits.
+
+ * src/truetype/ttinterp.c (Ins_GETINFO): Don't request bit 6 set to
+ get info on subpixel hinting.
+
+ * docs/CHANGES: Updated.
+
+2013-11-02 Werner Lemberg <[email protected]>
+
Fix Savannah bug #40451.
Simply apply the patch from the bug report.
--- a/docs/CHANGES
+++ b/docs/CHANGES
@@ -71,6 +71,11 @@
- Manual pages for most demo programs have been added.
+ - The GETINFO bytecode instruction for TrueType fonts was buggy if
+ used to retrieve subpixel hinting information. It was necessary
+ to set selector bit 6 to get results for selector bits 7-10,
+ which is wrong.
+
======================================================================
--- a/src/truetype/ttinterp.c
+++ b/src/truetype/ttinterp.c
@@ -7828,18 +7828,15 @@
if ( ( args[0] & 32 ) != 0 && CUR.grayscale_hinting )
K |= 1 << 12;
- /********************************/
- /* HINTING FOR SUBPIXEL */
- /* Selector Bit: 6 */
- /* Return Bit(s): 13 */
- /* */
- if ( ( args[0] & 64 ) != 0 &&
- CUR.subpixel_hinting &&
- CUR.rasterizer_version >= 37 )
+ if ( CUR.rasterizer_version >= 37 )
{- K |= 1 << 13;
-
- /* the stuff below is irrelevant if subpixel_hinting is not set */
+ /********************************/
+ /* HINTING FOR SUBPIXEL */
+ /* Selector Bit: 6 */
+ /* Return Bit(s): 13 */
+ /* */
+ if ( ( args[0] & 64 ) != 0 && CUR.subpixel_hinting )
+ K |= 1 << 13;
/********************************/
/* COMPATIBLE WIDTHS ENABLED */