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
e640f3a6b1
Another old bot fix
2018-10-09 08:28:07 -04:00
ed5cfa42c7
[kern] Minor
2018-10-09 00:20:35 -04:00
80e3102b8a
[kerx] Process coverage flags
2018-10-08 22:41:08 -04:00
1a5a3325a2
[kerx] Minor
2018-10-07 23:08:39 -04:00
c6bb3a588f
[kerx] Clean up Format2
2018-10-07 22:52:53 -04:00
8aa83d97f9
[kern/kerx] Fix Format2 offsetting
...
"The values in the right class table are stored pre-multiplied by the
number of bytes in a single kerning value, and the values in the left
class table are stored pre-multiplied by the number of bytes in one
row. This eliminates needing to multiply the row and column values
together to determine the location of the kerning value. The array can
be indexed by doing the right- and left-hand class mappings, adding the
class values to the address of the array, and fetching the kerning
value to which the new address points."
2018-10-07 22:45:15 -04:00
ed2a404272
[kerx] Clean up Format0
2018-10-07 22:37:20 -04:00
fdce1e1543
[kerx] Clean up kerx and KerxTable structures
2018-10-07 14:01:33 -04:00
c77ae40852
Rename hb-*private.hh to hb-*.hh
...
Sorry for the noise, downstream custom builders. Please adjust.
2018-08-25 22:36:36 -07:00
63f57f4dab
Mark more unsized array's as arrayZ
2018-05-08 16:56:11 -07:00
Behdad Esfahbod
Ebrahim Byagowi