8dcc1913a1
[kerx/morx] Make sure object length is sanitized before accessing it
2018-11-24 09:48:06 -05:00
30cb45b3ea
Change ArrayOf.bsearch() return semantics
...
Towards consolidating all array bsearch/...
2018-11-24 00:48:26 -05:00
9552f4ef0d
[kern] Don't enforce length of last subtable
2018-11-23 15:24:17 -05:00
748962264a
[aat] Disable mark advance zeroing if kern table has state-machines
...
Geeza Pro for example, relies on that for fancy mark positioning.
Fixes https://github.com/harfbuzz/harfbuzz/issues/1405
2018-11-23 11:10:17 -05:00
758c9d68e2
[morx/kerx] Limit range to subtable when sanitizing
2018-11-22 22:16:12 -05:00
a9fe787a11
[sanitizer] Add reset_object(), make set_object() do bounds-check
...
Affects morx/kerx run-time only currently. Will adjust their sanitize next.
2018-11-22 22:12:36 -05:00
2c8188bf59
[kerx] Make sure subtables are non-zero-length
...
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11400
2018-11-22 22:02:19 -05:00
274f4c726f
Rename check_array2() to check_array()
2018-11-12 14:24:36 -05:00
c8f4cc4927
[kerx] Fix integer overflow in multiply
...
Fixes https://oss-fuzz.com/v2/testcase-detail/5754863779053568
2018-11-12 14:11:29 -05:00
1300f027a9
[kerx] Minor tweak on previous commit
2018-11-12 13:56:48 -05:00
a549aa14a0
[kerx] Protect against stack underflow
...
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11367
2018-11-12 13:02:39 -05:00
752bd8a192
[kerx] Fix Format1 tupleKern sanitization
...
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11312
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11305
2018-11-10 21:13:32 -05:00
b18a56a290
[kerx] Comment
2018-11-07 18:13:22 -05:00
006386be3a
[kern] Implement negative state numbers
...
Let the fuzzing bots rip this code apart...
2018-11-07 18:04:53 -05:00
9af983af24
[kern] Switch to dispatch
2018-11-07 16:03:09 -05:00
bc06e2805a
[kerx/kern] Add has_cross_stream()
2018-11-07 16:02:40 -05:00
ea579f9ccc
[kerx] Fix peculiar indexing that was needed previously
...
Not needed now that we use GPOS attachment for cursive kerx.
2018-11-07 15:50:23 -05:00
7a9629f2f1
[kerx] Implement CrossStream kerning for non-state-machine subtables
...
Untested.
2018-11-07 14:52:57 -05:00
0eb4157011
[kerx] Disable backwards-kerning for non-state-machine tables
...
That's what the spec says for Backwards flag, only applicable to
formats 1 and 4.
2018-11-07 14:42:15 -05:00
b2f687c256
[kerx] Use GPOS attachment facilities for CrossStream kerning
2018-11-07 14:38:29 -05:00
e10a856eb2
[kerx] Format
2018-11-07 14:11:48 -05:00
649cc3ef27
[kerx] Don't disable crossKerning if kern feature is off
2018-11-07 14:07:13 -05:00
0c3b061ac2
[kern] Apply erlier, where GPOS/kerx are applied
2018-11-07 13:58:41 -05:00
f4bad0086e
[kerx] Implement tupleKerning for Format1
...
Untested.
2018-11-07 13:51:17 -05:00
39b4ef6f18
[kerx] Better sanitize tupleKerning
2018-11-07 13:48:45 -05:00
14772da06f
[kern/kerx] Share KernTable, renamed to KerxTable
2018-11-07 13:40:22 -05:00
db6e658e8c
[kern/kerx] More towards sharing KernTable
2018-11-07 13:33:23 -05:00
8e9f6cd0fd
[kerx] More minor
2018-11-07 12:49:20 -05:00
f8c3df7d4a
[kern/kerx] Minor
2018-11-07 12:48:06 -05:00
f5e0a63a22
[kern/kerx] Towards sharing KernTable
2018-11-07 12:32:51 -05:00
330508497d
[kern/kerx] Minor
2018-11-07 12:27:44 -05:00
1a5ef84900
[kern/kerx] Share Format2
...
This, enables Format2 for kern table, which was disabled before.
2018-11-07 12:19:52 -05:00
8faec4e334
[kerx] Towards merging Format2
2018-11-07 12:16:38 -05:00
e72e041c3c
[kerx] Rename
2018-11-07 11:56:36 -05:00
241ba7da51
[morx/kerx] Rename types
2018-11-07 11:51:40 -05:00
c808e444da
[kern/kerx] Share Format1 subtable
2018-11-07 11:47:12 -05:00
a244190afa
[kerx] Minor
2018-11-07 11:47:12 -05:00
2a72091196
[kerx] Minor
2018-11-07 11:26:57 -05:00
f5f4ca7871
[kern/kerx] Enable crossStream kerning in vertical
...
CoreText doesn't, but no reason we shouldn't do.
2018-11-07 11:21:09 -05:00
d5c88af4a2
[kerx] More towards sharing Format1
2018-11-07 11:20:14 -05:00
ce3451dc2a
[kerx] Towards sharing Format1
2018-11-07 11:02:04 -05:00
5b17853547
[kern/kerx] Share Format0
2018-11-07 10:45:25 -05:00
c97dde5d55
[kern/kerx] Towards merge more
2018-11-07 10:39:39 -05:00
540ccc38b0
[kern/kerx] More towards sharing
2018-11-07 10:33:46 -05:00
d0f8f4c200
[kern] Move kern machine to hb-kern.hh
2018-11-07 10:25:25 -05:00
a6acff252c
[kerx] Towards sharing subtables with kern
2018-11-07 10:19:57 -05:00
59e04e4231
[kern/kerx] Fix cursive joining
...
Tested with Waseem TTC:
$ hb-shape Waseem.ttc جحخج
[F1Jeem_R2=3@0,180+479|M1Khah_L2_R2=2@0,682+403|M1Hah_L2_R2=1@0,1184+403|I1Jeem_L2=0@0,1184+744]
2018-11-07 00:27:20 -05:00
8d0f797139
[kern/kerx] Fix "reset" magic value
2018-11-07 00:05:10 -05:00
0123976a0c
[kerx] Adjust CrossStream kern to match 'kern' table
2018-11-06 21:46:14 -05:00
01bf43ac01
[kern] Implement CrossStream kerning
2018-11-06 17:59:31 -05:00
220a5991ba
[kern/kerx] Fix trace numbering
2018-11-06 17:16:23 -05:00
bfafe208da
[kern] Switch to dispatch
2018-11-06 12:13:20 -05:00
b605db2f65
[aat] Clean up ankr table include mess
2018-11-04 12:58:02 -05:00
8034d1dda0
[kern] Implement Format1
...
Also, implement backwards kerning for Format1 in kern and kerx.
Fixes https://github.com/harfbuzz/harfbuzz/issues/1350
2018-11-02 14:48:04 -04:00
b053cabacd
[mort] Bring back mort generalizations
...
Started by reverting https://github.com/harfbuzz/harfbuzz/commit/1f1c85a5
Just a starting point, if we agree even mort can come back.
2018-10-30 19:18:06 -07:00
39bd07aed5
Fix bunch of unused parameter warnings
...
Show up with gcc -O0.
There's a few more but those are functions that need to be filled in.
Maybe this is a lost battle...
2018-10-26 21:22:26 -07:00
b713c13977
[kerx] Implement tuple-kerning in Format0
2018-10-20 14:56:28 -07:00
68b7050768
[kerx] Fix sanitize of KerxSubtableFormat2::array read
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Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11033
2018-10-20 12:20:57 -07:00
29d877518f
[kerx] Implement variation-kerning tables (without the variation part)
...
SFSNDisplay uses these. We just apply the default kern without
variations right now. But at least makes the default kern work.
2018-10-19 16:06:54 -07:00
2352cc3539
[kerx] Whitespace
2018-10-19 10:17:02 -07:00
87205ef935
[aat] Make sure Lookup offset is never nulled
...
It has unbounded size...
Fixes https://oss-fuzz.com/v2/testcase-detail/5718889451749376
2018-10-16 15:41:00 -07:00
42b75dc3a7
[kerx] Minor, remove debug bit
2018-10-16 10:58:09 +03:30
11703afce6
[kerx] Fix Format6 sanitize
...
Fixes https://oss-fuzz.com/v2/testcase-detail/5650286710882304
2018-10-15 21:17:08 -07:00
bb35725cd7
[kerx/morx] More end-of-text protection
2018-10-15 11:05:10 -07:00
40f2b9355c
[kerx] Fix Format1 sanitize
...
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10948
2018-10-14 14:56:32 -07:00
de6e414c56
[kerx] Sanitize more
2018-10-13 13:48:22 -04:00
71f76f2f39
[kerx] Fix-up previous commit
...
A "&" was missing. Go back to using pointers that are less error-prone.
2018-10-13 13:36:27 -04:00
6d4b054234
[kerx] Use sanitizer instead of handcoded runtime sanitization
2018-10-13 12:20:33 -04:00
5733113662
[kerx] Wire up context down to get_kerning
2018-10-13 12:16:12 -04:00
c4502833b7
[kerx] Use sanitizer.get_num_glyphs() instead of face->get_num_glyphs()
2018-10-13 12:09:59 -04:00
fc45e698f2
[kerx] Protext against overflows
2018-10-13 12:09:59 -04:00
fbbd926dba
[kerx] Implement Format4 action_type=1 contour-point-based attachment
...
Untested.
This concludes kerx table support!
2018-10-11 01:22:29 -04:00
b6bc0d4ff6
[kerx] Implement Format4 action_type=2 coordinate-based attachment
...
Untested.
2018-10-11 01:17:57 -04:00
1622ba5943
[kerx] Implement Format4 'ankr'-based mark attachment
...
Tested with Kannada MN:
$ HB_OPTIONS=aat ./hb-shape Kannada\ MN.ttc -u 0CCD,0C95,0CD6
[kn_ka.vattu=0+230|kn_ai_length_mark=1@326,0+607]
2018-10-11 01:17:33 -04:00
28f0367aab
[kerx] Flesh out Format4
...
Doesn't apply actions yet.
2018-10-11 00:46:12 -04:00
f7c45bc33e
[kerx] Allow granularly disabling kerning
2018-10-10 22:15:13 -04:00
2b72c4b63d
[kerx] Comment
2018-10-10 21:53:14 -04:00
9f450f07b0
[kerx] Make Format1 work
...
Tested using Kannada MN:
$ HB_OPTIONS=aat ./hb-shape Kannada\ MN.ttc -u 0C95,0CCd,C95,CCD
[kn_ka.virama=0+1299|kn_ka.vattu=0+115|_blank=0@-115,0+385]
$ HB_OPTIONS=aat ./hb-shape Kannada\ MN.ttc -u 0C95,0CCd,C95,CCD --features=-kern
[kn_ka.virama=0+1799|kn_ka.vattu=0+230|_blank=0+0]
I don't see the GPOS table in the font do the same. ¯\_(ツ)_/¯
2018-10-10 21:46:58 -04:00
8496753796
[kerx] Implement Format1
...
Untested.
2018-10-10 21:18:37 -04:00
c9165f5450
[kerx] More UnsizedArrayOf<>
2018-10-10 20:43:21 -04:00
ca54eba484
[kerx] Fix bound-checking error introduced a couple commits past
2018-10-10 20:41:16 -04:00
339036dd97
[kerx] Start fleshing out Format1
2018-10-10 20:37:22 -04:00
ab1f30bd05
[kerx] Implement Format6
...
Untested. The only Apple font shipping with this format is San Francisco fonts
that use this for their kerx variation tables, which we don't support.
2018-10-10 20:10:20 -04:00
c9a2ce9e05
[kerx] Move bounds-checking to subtable length itself
2018-10-10 20:00:44 -04:00
22955b23cd
[kerx] Start fleshing out Format6
2018-10-10 19:58:20 -04:00
f6aaad9b4f
[kerx] When rejecting variable kerning, also check for tupleCount
2018-10-10 19:20:06 -04:00
7ed5366d3c
[kerx] No-op
...
Tested that Format0 works with Kannada MN font:
$ make -j5 lib -s && HB_OPTIONS=aat ./hb-shape Kannada\ MN.ttc -u 0C95,0CC2
[kn_ka=0+1000|kn_matra_uu=0@-30,0+1345]
$ make -j5 lib -s && HB_OPTIONS=aat ./hb-shape Kannada\ MN.ttc -u 0C95,0CC2 --features=-kern
[kn_ka=0+1030|kn_matra_uu=0+1375]
Note that GPOS does the same with 'dist' feature, and applies the whole difference to the
same glyph:
$ make -j5 lib -s && ./hb-shape Kannada\ MN.ttc -u 0C95,0CC2
[kn_ka=0+970|kn_matra_uu=0+1375]
$ make -j5 lib -s && ./hb-shape Kannada\ MN.ttc -u 0C95,0CC2 --features=-dist
[kn_ka=0+1030|kn_matra_uu=0+1375]
2018-10-10 19:12:27 -04:00
5d34164d98
[kern/kerx] Fix offset base
...
Disable kern Format2.
Fix kerx Format2. Manually tested this with Tamil MN font and it works:
$ HB_OPTIONS=aat ./hb-shape Tamil\ MN.ttc -u 0B94,0B95
[tgv_au=0+3435|tgc_ka=1@-75,0+1517]
HB_OPTIONS=aat ./hb-shape Tamil\ MN.ttc -u 0B94,0B95 --features=-kern
[tgv_au=0+3510|tgc_ka=1+1592]
2018-10-10 18:23:09 -04:00
60f86d32d7
[kerx] Don't loop over kerning subtables if kerning disabled
2018-10-10 18:10:05 -04:00
44f09afd5b
[kerx] Skip variation subtables
2018-10-10 17:32:32 -04:00
7727e73756
[kerx] Actually hook up, and fix crash
2018-10-10 13:24:51 -04:00
0537a40193
[kerx] Comment
2018-10-09 23:37:00 -04:00
362d324119
[aat] Rename
2018-10-09 23:27:00 -04:00
948f59a13a
[kerx] Use subtable range for runtime checks
2018-10-09 23:07:47 -04:00
ad76307486
[kerx] Comment
2018-10-09 22:57:00 -04:00
db9600bbe1
[kerx] Remove junk
2018-10-09 22:55:47 -04:00
27db859416
[kern/kerx] Adjust bounds check
2018-10-09 22:55:17 -04:00
c66f7f8c5d
[kerx] Implement Format2 apply()
...
Still, not hooked.
2018-10-09 22:49:33 -04:00
4b461785bd
Fix check
2018-10-09 22:46:30 -04:00
53e5594500
[kerx] Implement Format0 apply()
...
Not hooked up to be called yet.
2018-10-09 22:35:22 -04:00
Behdad Esfahbod
Ebrahim Byagowi