AuroraMiddleware/harfbuzz
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Author SHA1 Message Date
Behdad Esfahbod
b6bc0d4ff6 [kerx] Implement Format4 action_type=2 coordinate-based attachment 
Untested.
 2018-10-11 01:17:57 -04:00
Behdad Esfahbod
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
Behdad Esfahbod
7bb4da7d95 [aat] Wire up 'ankr' table to apply context 2018-10-11 00:52:07 -04:00
Behdad Esfahbod
28f0367aab [kerx] Flesh out Format4 
Doesn't apply actions yet.
 2018-10-11 00:46:12 -04:00
Behdad Esfahbod
947962a287 [ankr] Implement table access 2018-10-10 23:07:03 -04:00
Behdad Esfahbod
7281cb3eeb [ankr] Start fixing 2018-10-10 22:56:52 -04:00
Behdad Esfahbod
34caadc5c7 Ugh. Re-enable accidentally disabled GPOS 2018-10-10 22:17:07 -04:00
Behdad Esfahbod
f7c45bc33e [kerx] Allow granularly disabling kerning 2018-10-10 22:15:13 -04:00
Behdad Esfahbod
2b72c4b63d [kerx] Comment 2018-10-10 21:53:14 -04:00
Behdad Esfahbod
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
Behdad Esfahbod
504cb68fc9 Disable mark advance zeroing as well as mark fallback positioning if doing kerx 2018-10-10 21:29:46 -04:00
Behdad Esfahbod
8496753796 [kerx] Implement Format1 
Untested.
 2018-10-10 21:18:37 -04:00
Behdad Esfahbod
c9165f5450 [kerx] More UnsizedArrayOf<> 2018-10-10 20:43:21 -04:00
Behdad Esfahbod
ca54eba484 [kerx] Fix bound-checking error introduced a couple commits past 2018-10-10 20:41:16 -04:00
Behdad Esfahbod
339036dd97 [kerx] Start fleshing out Format1 2018-10-10 20:37:22 -04:00
Behdad Esfahbod
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
Behdad Esfahbod
c9a2ce9e05 [kerx] Move bounds-checking to subtable length itself 2018-10-10 20:00:44 -04:00
Behdad Esfahbod
22955b23cd [kerx] Start fleshing out Format6 2018-10-10 19:58:20 -04:00
Behdad Esfahbod
f6aaad9b4f [kerx] When rejecting variable kerning, also check for tupleCount 2018-10-10 19:20:06 -04:00
Behdad Esfahbod
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
Behdad Esfahbod
7fa69e92ca Comment 2018-10-10 19:02:32 -04:00
Behdad Esfahbod
7e6e5bf614 Fix option string matching 2018-10-10 18:59:07 -04:00
Behdad Esfahbod
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
Behdad Esfahbod
60f86d32d7 [kerx] Don't loop over kerning subtables if kerning disabled 2018-10-10 18:10:05 -04:00
Behdad Esfahbod
38a7a8a89e Allow HB_OPTIONS=aat to prefer AAT tables over OT 
Fixes https://github.com/harfbuzz/harfbuzz/issues/322
 2018-10-10 17:44:46 -04:00
Behdad Esfahbod
44f09afd5b [kerx] Skip variation subtables 2018-10-10 17:32:32 -04:00
Behdad Esfahbod
1e8fdd285f Remove HAVE_OT 
We never tested compiling without it.  Just kill it.  We always build
our own shaper.
 2018-10-10 16:32:35 -04:00
Behdad Esfahbod
7727e73756 [kerx] Actually hook up, and fix crash 2018-10-10 13:24:51 -04:00
Behdad Esfahbod
b3390990f5 Add per-subtable set-digests 
This speeds up Roboto shaping by ~10%.  I was hoping for more.
Still, good defense against lookups with many subtables.
 2018-10-10 12:13:25 -04:00
Behdad Esfahbod
e78549edfb Move apply down into subtables accel 2018-10-10 11:54:48 -04:00
Behdad Esfahbod
78c09bf213 Move subtable array into lookup accel 2018-10-10 11:50:46 -04:00
Behdad Esfahbod
97e5913d5a Move more code 2018-10-10 11:41:05 -04:00
Behdad Esfahbod
c8f2d9334c Move code 
In preparation to move add per-subtable set digests...
 2018-10-10 11:36:28 -04:00
Behdad Esfahbod
a03850a356 Fix GPOS/kern interaction 
Oops.  Was checking for kern feature in GSUB, not GPOS.
 2018-10-10 10:57:28 -04:00
Behdad Esfahbod
d1be805e78 More rewriting plan compile 
Hopefully more clear.
 2018-10-10 10:49:45 -04:00
Behdad Esfahbod
961ab46b24 More reshuffle plan compile 2018-10-10 10:42:10 -04:00
Behdad Esfahbod
2091b509e3 [kerx] Hook up to shaper 2018-10-10 10:41:08 -04:00
Behdad Esfahbod
8d00c39bfc [kern] Minor 2018-10-10 10:19:07 -04:00
Behdad Esfahbod
e655fd38cf Apply TT or fallback kerning when GPOS does not have kern feature 
Previously we only did if there was no GPOS whatsoever.  This applies
to Arial, Times New Roman, etc in Win7.  Was not kerning before.  It
is now.
 2018-10-10 10:19:07 -04:00
Behdad Esfahbod
754cf440bf Minor 2018-10-10 10:19:07 -04:00
Ebrahim Byagowi
187df7d7a9
[circleci] Add an iOS bot (#1233) 2018-10-10 17:12:52 +03:30
Behdad Esfahbod
0537a40193 [kerx] Comment 2018-10-09 23:37:00 -04:00
Behdad Esfahbod
362d324119 [aat] Rename 2018-10-09 23:27:00 -04:00
Behdad Esfahbod
54c9ecb92d [morx] Use subtable range for embedded sanitizer here as well 2018-10-09 23:18:19 -04:00
Behdad Esfahbod
d35315cc02 [aat] Fixup recent commit 
For 329f240108

max_ops is signed.
 2018-10-09 23:17:32 -04:00
Behdad Esfahbod
948f59a13a [kerx] Use subtable range for runtime checks 2018-10-09 23:07:47 -04:00
Behdad Esfahbod
329f240108 [aat] Set embedded sanitizer max ops really high 
Since we consume it legitimately during shaping.
 2018-10-09 23:03:20 -04:00
Behdad Esfahbod
ad76307486 [kerx] Comment 2018-10-09 22:57:00 -04:00
Behdad Esfahbod
db9600bbe1 [kerx] Remove junk 2018-10-09 22:55:47 -04:00
Behdad Esfahbod
27db859416 [kern/kerx] Adjust bounds check 2018-10-09 22:55:17 -04:00