Commit Graph

68 Commits

Author SHA1 Message Date
Behdad Esfahbod 63493f956d Move layout_context into apply_context 2010-05-05 01:01:05 -04:00
Behdad Esfahbod 39840474af Remove SANITIZE_ARG_DEF and SANITIZE_ARG 2010-05-05 00:23:19 -04:00
Behdad Esfahbod 4a446ac351 Use function template for pass-thru argument 2010-05-04 22:56:20 -04:00
Behdad Esfahbod bb029af943 Remove SANITIZE_THIS 2010-05-04 15:28:52 -04:00
Behdad Esfahbod 2226fc93d1 Rename SANITIZE_BASE to SANITIZE_WITH_BASE 2010-05-04 15:12:17 -04:00
Behdad Esfahbod 4d4cce9626 Remove SANITIZE_THIS2 2010-05-04 14:57:55 -04:00
Behdad Esfahbod be74284673 Remove SANITIZE_THIS3 2010-05-04 14:47:05 -04:00
Behdad Esfahbod fbab9f9bd8 Remove SANITIZE_BASE2 2010-05-04 14:42:10 -04:00
Behdad Esfahbod 64d3fc8d0d Cosmetic: Rename HB_LIKELY/HB_UNLIKELY to likely/unlikely 2010-05-03 22:51:19 -04:00
Behdad Esfahbod a8d960bd26 [GPOS] Speedup apply_value() 2010-04-29 14:31:56 -04:00
Behdad Esfahbod 33d13fdda9 Rename HB_GNUC_UNUSED -> HB_UNUSED 2010-04-29 13:56:44 -04:00
Behdad Esfahbod 6f729b45b0 More contour point use 2010-04-29 03:59:06 -04:00
Behdad Esfahbod 6617eada95 Rename apply_context -> context 2010-04-29 02:25:30 -04:00
Behdad Esfahbod b4c7fab762 Rename 2010-04-29 02:24:25 -04:00
Behdad Esfahbod 1376fb7bf9 [apply] Use a context object to reduce number of parameters passed around 2010-04-29 02:19:21 -04:00
Behdad Esfahbod 173fde7087 Further simplify tracing 2010-04-29 01:47:30 -04:00
Behdad Esfahbod 187454c595 Add different casts from pointer and ref to avoid bugs 2010-04-23 17:44:28 -04:00
Behdad Esfahbod efb324a46f Remove GET_FOR_DATA macros
The major-version check is now handled by sanitize.  If major
doesn't match, we reject and fall back to the Null object.
2010-04-23 16:28:27 -04:00
Behdad Esfahbod a065f471b3 Cleanup Extension lookups
Two things:

1. Allow nested Extension lookups.  The offset is always positive, so
it can't loop circularly.

2. Move the check for all Extension subtables having the same lookup
type to the correct place.  Before it wasn't really working.
2010-04-22 20:15:11 -04:00
Behdad Esfahbod a3263aa773 Convert the last set of cast macros to templates 2010-04-22 18:42:01 -04:00
Behdad Esfahbod 3b2c2df41b Cleanup Extension sanitize() 2010-04-22 16:51:42 -04:00
Behdad Esfahbod 278a91f0cd Minor cleanup of sanitize
Done with an audit of all sanitize()
2010-04-22 13:59:39 -04:00
Behdad Esfahbod 9ac7dc73bc Check for (impossible) overflow 2010-04-22 13:50:22 -04:00
Behdad Esfahbod fb5904ec93 Make casts more explicit 2010-04-22 10:43:30 -04:00
Behdad Esfahbod bb1e16335e Improve Subst/Pos SubTable access and sanitize 2010-04-22 01:01:35 -04:00
Behdad Esfahbod c755cb3e3a Change header comment 2010-04-22 00:11:43 -04:00
Behdad Esfahbod 0dfcc13a46 Rename ConstCharP to CharP (overloaded now) 2010-04-21 23:41:26 -04:00
Behdad Esfahbod 62c0fd7573 Cleanup de-const-casting during sanitize 2010-04-21 23:30:48 -04:00
Behdad Esfahbod 198facdc55 Use templates for const char * casts 2010-04-21 13:35:36 -04:00
Behdad Esfahbod eba8b4f644 GNOME Bug 613015 - [HB] Does not sanitize Device tables referenced from ValueRecords 2010-04-21 02:04:02 -04:00
Behdad Esfahbod 673a4efcbc WIP 2010-04-21 02:02:57 -04:00
Behdad Esfahbod 06558d2a74 Round instead of trunc 2010-04-21 01:50:15 -04:00
Behdad Esfahbod 0e206de986 Fix warnings 2010-04-21 01:48:41 -04:00
Behdad Esfahbod 4b8487d83e Fix the mystery bug!
A couple bugs joined forces to exhibit the mystery behavior of
crashes / infinite loops on OS X / wrong kerning / invalid memory
access.  Pooh!

The bugs were involved:

  - Wrong pointer math with ValueRecord in PairPosFormat1

  - Fallout from avoiding flex arrays, code not correctly updated
    to remove sizeof() usage.

We strictly never use sizeof() directly now.  And the PairPos code
is cleaned up.  Should fix them all.  Bugs are:

  Bug 605655 - Pango 1.26.2 introduces kerning bug
  Bug 611229 - Pango reads from uninitialized memory
  Bug 593240 - (pangoosx) Crash / infinite loop with Mac OS X

We were also doing wrong math converting Device adjustments to
hb_position_t.  Fallout from FreeType days.  Should shift 16, not
6.  Fixed that too.

There's still another bug: we don't sanitize Device records
referenced from value records.  Fixing that also.
2010-04-21 01:41:29 -04:00
Behdad Esfahbod 7f7448a354 Indent 2009-12-20 21:42:14 +01:00
Behdad Esfahbod c65b26acf2 Use autoconf FLEXIBLE_ARRAY_MEMBER when available 2009-11-18 11:27:33 -05:00
Behdad Esfahbod 9db8ad7531 Add hb_ot_layout_position_finish()
We expect buffer to be setup with default positions before GPOS.
2009-11-06 16:47:31 -05:00
Behdad Esfahbod c3f9f7e59d Fix MarkMark issue with ligid and components 2009-11-05 16:16:14 -05:00
Behdad Esfahbod 9bef3611f0 Rename [xy]_pos to [xy]_offset since we don't accumulate positions 2009-11-05 12:20:11 -05:00
Behdad Esfahbod 7951279b4a Implement nil font functions 2009-11-03 20:27:05 -05:00
Behdad Esfahbod d3480ba37f Don't use zero-sized arrays
It's not part of the standard and MSVC doesn't like it.  It makes the code
a lot less elegant than it used to be, but I think it should work now.
2009-11-03 10:47:29 -05:00
Behdad Esfahbod 3e2401f6c5 [HB] Rename DEBUG to TRACE where appropriate 2009-11-02 14:40:48 -05:00
Behdad Esfahbod 0535b50f43 [HB] Add GSUB/GPOS tracing 2009-11-02 14:40:48 -05:00
Behdad Esfahbod c91facd83b [HB] Bug 593231 - < c99 compiler dislikes ValueRecord 2009-11-02 14:40:47 -05:00
Behdad Esfahbod 8f034d5849 Fix a few other pedantic warnings 2009-11-02 14:40:45 -05:00
Behdad Esfahbod 3c69bd46e2 [HB] Avoid int overflow in GPOS
Bug 592036 - integer overflow bug causes misrendering of Nepali characters
2009-11-02 14:40:44 -05:00
Behdad Esfahbod b2b18ef43c [HB] Simplify loop 2009-11-02 14:40:44 -05:00
Behdad Esfahbod b41f210d12 [HB] Merge mark positionin code between three types of lookups 2009-11-02 14:40:44 -05:00
Behdad Esfahbod 3564ee5216 [HB] Correctly sanitize LigatureAttach 2009-11-02 14:40:43 -05:00
Behdad Esfahbod cb71a2fb76 [HB] Simplify MarkBase and MarkLig too 2009-11-02 14:40:43 -05:00