kmx git

Commit	Date	Message
f380a328	2023-08-25T14:01:01	Fix some typos.
483d4a87	2023-08-06T14:40:45	Fix bot
7989702a	2023-08-06T14:17:50	Audit and fix up serialize_subset uses Fixes https://github.com/harfbuzz/harfbuzz/issues/4362
dcd3afca	2023-08-01T20:09:34	[skippy-iter] Remove unused num_items
9cdc043c	2023-07-31T18:53:29	[Cursive] Only sanitize what we use
44026aa8	2023-07-31T16:47:06	[Cursive] Minor, adjust unsafe-to-concat if prev didn't sanitize
b382e616	2023-07-31T16:29:28	[GPOS] Sanitize Cursive positioning anchors lazily Speeds up Duployan-Regular.otf load time by 30%. Doesn't seem to slow down shaping in a measurable way.
62e6f783	2023-07-25T08:32:21	[Cursive] round
60db1427	2023-07-24T20:49:32	[layout] Remove unused "max-size" cruft
c91899be	2023-07-21T11:43:47	[gdef] Use set-digest for mark-filterint-sets Speeds up Noto Duployan-Regular.otf by 45% percent!
837885f0	2023-07-20T12:58:16	Revert "[sanitize/Coverage] Keep a map of sane coverages" This reverts commit a689114898cc3e8f1c6ba7cc49cd6c3639d91250.
0ab90671	2023-07-20T12:57:16	[sanitize/Coverage] Keep a map of sane coverages Fonts like Gulzar reuse the same coverage over a thousand times sometimes. However, this doesn't speed up sanitize unfortunately. Looks like calling Coverage::sanitize() is already very fast. We're just doing A LOT of it. The map slowed it down in fact. A set was even slower. Going to revert.
aa381ae9	2023-07-18T10:42:13	[ReverseChain] Remove SIZE_MAX Oops. Can't set it since the struct has offsets.
e583c9e9	2023-07-18T10:34:26	[ReverseChain] Add max-size
49730531	2023-07-16T13:09:49	Config
645fabd1	2023-07-16T11:36:59	[gsubgpos] Vastly speed up ChainRuleSet / RuleSet matching Match the first component in a fast loop. Idea replicated from LigatureSet. Speeds up Gulzar shaping by 22%! 37% in NotoNastaliqUrdu!
77080f86	2023-07-16T11:26:32	.
62e10c9f	2023-07-16T08:43:18	Revert "[gsubgpos] Allocate iterators further up" This reverts commit b9f364b8fcacf8ab32d0272190d8509f214e55f2.
b9f364b8	2023-07-16T08:42:36	[gsubgpos] Allocate iterators further up To avoid calling set_match_func repeatedly. Doesn't show speedup. Going to revert.
f94508ed	2023-07-15T15:28:19	[Ligature] Micro-optimize
c41b0d7b	2023-07-10T17:23:58	[sanitize/PairValueRecord] Add a max_size for faster sanitize
d84c5f29	2023-07-08T15:22:51	Revert "[gsubgpos] Make (Chain)Context funcs templatized" This reverts commit 03ac08d267eb7ad2f1ac039115fc0030ea475fae.
e73223b9	2023-07-08T15:22:18	[gsubgpos] Make (Chain)Context funcs templatized Unfortunately they still won't be inlined because the matcher_t needs function pointers. So, no speed up. Going to revert.
0b879afb	2023-07-07T22:35:43	[sanitize] Inline Coverage::sanitize
2006d321	2023-07-07T17:07:11	[sanitize] Add "fastpath" for ArrayOfOffset16To<> objects with max size Unfortunately this doesn't speed up NotoNastaliq or Gulzar as I was hoping for. Their GSUB tables are not large enough for this to kick in...
7a85663c	2023-07-07T19:21:18	Revert "[sanitize] Add "fastpath" for ArrayOfOffset16To<> objects with max size" This reverts commit 10f8556c73f3cf231c6b5a900a6a1903f9516f90. This was, unfortunately, wrong :(.
10f8556c	2023-07-07T17:07:11	[sanitize] Add "fastpath" for ArrayOfOffset16To<> objects with max size
68b78914	2023-07-07T17:07:11	[sanitize] Add "fastpath" for ArrayOfOffset16To<> objects with max size Unfortunately this doesn't speed up NotoNastaliq or Gulzar as I was hoping for. Their GSUB tables are not large enough for this to kick in...
90752cd5	2023-07-07T15:47:28	[type] Add HeadlessArray16Of
eae82788	2023-07-02T13:07:26	[GPOS] Micro-optimize lazy_some_gpos check Speeds up 11% in: BM_Font/load_face_and_shape/Roboto-Regular.ttf/hb
46e54a23	2023-07-02T13:03:16	[GPOS] Remove extra check
2d6091fc	2023-06-30T11:48:56	[GPOS] Make AnchorMatrix sanitize lazy again Was reverted in the previous commit, because it was incomplete.
0887382c	2023-06-30T11:39:46	[GPOS] Fix sanitize
690af7aa	2023-06-30T10:36:01	[GPOS] Sanitize Device tables lazily This speeds up face loading for variable fonts by 80%! Comparing before to after Benchmark Time CPU Time Old Time New CPU Old CPU New --------------------------------------------------------------------------------------------------------------------------------------------------------------- BM_Font/load_face_and_shape/Roboto-Regular.ttf/hb -0.0368 -0.0366 20 20 20 19 BM_Font/load_face_and_shape/RobotoFlex-Variable.ttf/hb -0.7149 -0.7162 77 22 77 22 BM_Font/load_face_and_shape/RobotoFlex-Variable.ttf/var/hb -0.7241 -0.7255 80 22 79 22 BM_Font/load_face_and_shape/SourceSansPro-Regular.otf/hb -0.1441 -0.1445 28 24 28 24 BM_Font/load_face_and_shape/AdobeVFPrototype.otf/hb -0.7893 -0.7910 66 14 66 14 BM_Font/load_face_and_shape/AdobeVFPrototype.otf/var/hb -0.7865 -0.7882 67 14 66 14 BM_Font/load_face_and_shape/SourceSerifVariable-Roman.ttf/hb -0.8895 -0.8900 227 25 226 25 BM_Font/load_face_and_shape/SourceSerifVariable-Roman.ttf/var/hb -0.8895 -0.8900 226 25 225 25 BM_Font/load_face_and_shape/Comfortaa-Regular-new.ttf/hb -0.5512 -0.5531 42 19 42 19 BM_Font/load_face_and_shape/NotoNastaliqUrdu-Regular.ttf/hb -0.1511 -0.1510 227 192 225 191 BM_Font/load_face_and_shape/NotoSerifMyanmar-Regular.otf/hb -0.1494 -0.1498 41 35 40 34 OVERALL_GEOMEAN -0.6443 -0.6456 0 0 0 0
d338506c	2023-06-30T10:13:05	[GPOS] Reuse sanitize_values_stride_unsafe in another function
10b9ca54	2023-06-28T07:46:33	Fix typo: subtitution -> substitution
67b16247	2023-06-07T16:15:48	[set] Simplify a few set iterations as range loop
dcecb4d1	2023-06-05T16:03:36	[subset/ValueFormat] Micro-optimize
469e82a2	2023-06-05T15:23:22	[subset/PairPos] Micro-optimize
6593d2aa	2023-06-05T15:11:43	[subset/PairPos] Speed up
82741304	2023-06-04T09:41:41	[subset] start_embed never returns nullptr Remove checks.
ca27925d	2023-06-03T16:18:15	Use hb_codepoint_pair_t in more places
2f05c32c	2023-05-08T14:29:07	[Coverage] Minor access arrayZ directly in a couple places
4ad443d5	2023-05-08T10:14:43	[Coverage/ClassDef] Don't call qsort if sorted already
8df5cdbc	2023-05-07T15:49:50	[Coverage/ClassDef] Handle glyphID overflow in serialize
71910fdf	2023-05-05T15:37:07	[Coverage] Remove unnecessary check
ee9b631d	2023-05-05T10:26:57	[SingleSubst] Fix condition to upgrade to beyond-64k
0e9ebf10	2023-05-05T06:57:51	[config] Add HB_OPTIMIZE_SIZE_MORE and enable in HB_TINY Part of https://github.com/harfbuzz/harfbuzz/issues/4220
31949636	2023-05-04T16:29:48	Revert "[layout] Cache subtable coverages in hb_map_t" This reverts commit 7a715d74e06720c17d28ba7b4c3da0b583f8d1d3.
7a715d74	2023-05-04T16:28:11	[layout] Cache subtable coverages in hb_map_t Proof-of-concept. Going to revert. Memory consumption is more than I like. It does speed up Roboto shaping another 15% though. Perhaps if we could add logic to choose which subtables to cache, this might be a useful approach.
1be39729	2023-05-04T13:18:34	[subset] Support unordered glyphlist in Coverage/ClassDef serialize
a10fad7c	2023-05-04T11:32:07	[config] Add HB_NO_GDEF_CACHE
319a488b	2023-05-04T10:36:48	[GDEF] Fix null check Fixes https://oss-fuzz.com/testcase-detail/5920994267889664
fb795dc3	2023-05-03T15:17:20	[GPOS] Optimize iterator reset Speeds up Gulzar shaping 5%.
8a8fc37c	2023-05-03T14:57:00	[GDEF] Use a cache for glyph classes Shows 5% speedup for Roboto shaping.
323a1fe4	2023-05-03T13:52:43	[PairPos] Fix what I broke
a6f5f0dc	2023-05-03T13:45:39	[PairSet] Micro-optimize
4e495eb0	2023-05-03T13:40:46	[PairPos] Add an unlikely
5528bdd4	2023-05-03T13:35:10	[PairPos] Remove a likely
ae0fe02d	2023-05-03T13:24:08	[Ligature] Use slow path if 2 or fewer ligatures
ddd6c2e7	2023-05-03T13:16:39	[Ligature] Micro-optimize more
045ae4b0	2023-05-03T13:08:43	[GPOS] Micro-optimize
0fe90ebc	2023-05-03T12:49:31	[Ligature] Micro-optimize
51061d28	2023-05-03T12:46:04	[Ligature] Minor tweak to recent code
7881eadf	2023-05-02T14:56:18	[Ligature] Speed up Match the first component of the ligature in the LigatureSet loop. Speeds up Roboto shaping by 25%. I don't think it breaks anything. The test suite seems happy.
95f15557	2023-05-02T16:37:31	[PairPosFormat2] Micro-optimize and don't kern if class2=0 If class2=0 we expect no kerning to happen. Just bail out.
59967154	2023-05-02T15:52:43	[PairPos2] Micro-optimize
a8b8eb53	2023-05-01T16:56:29	[Coverage] Micro-optimize
af21ea35	2023-05-01T16:34:50	[Coverage/serialize] Micro-optimize
e826d94a	2023-04-30T11:11:19	Call roundf() instead of _hb_roundf() The former is defined as a macro expanding to the latter.
06504cb0	2023-04-28T13:13:18	[PairPosFormat2] Minor use false instead of 0
9ed43dc5	2023-04-28T12:38:26	[PairPosFormat2] Reuse a value
8658c257	2023-04-17T19:46:46	[subset] In LigatureSubst subsetting, check if the ligature glyph is in glyphset. Otherwise coverage will not match the retained ligature sets.
a84cae42	2023-03-15T02:39:57	[subset] Don't add invalid gids (-1) to the glyphset when loading glyph map from the accelerator.
7327006d	2023-03-07T21:06:01	[GSUB] Support SingleSubst in get_glyph_alternates Fixes https://github.com/harfbuzz/harfbuzz/discussions/4146
08784baf	2023-03-02T10:48:30	[GSUB/GPOS] Fix sanitization in Format1 Fixes https://oss-fuzz.com/testcase-detail/5120727025319936
c67c0086	2023-03-01T13:32:44	[GPOS] Fix indexing in MarkLigPos This was broken in 8708b9e081. Fixes https://github.com/harfbuzz/harfbuzz/issues/4142
918193eb	2023-02-22T23:11:29	[subset] fix a class of fuzzer timeouts caused by large shared coverage tables. More acurately estimates the op count for CoverageFormat2 tables as the population size instead of the size in bytes.
adccc535	2023-02-17T12:29:42	[MarkBase] Adjust base-finding logic Fixes https://github.com/harfbuzz/harfbuzz/issues/4124
64fa5cd4	2023-02-07T15:50:36	[GPOS] Fix assert fail introduced recently Was introduced in 8708b9e081192786c027bb7f5f23d76dbe5c19e8. If these lookups are recursed to from (Chain)Context out-of-order, it was possible that last_base > buffer->idx, in which case we were attaching marks to a base after them... and an assertion was failing fortunately. Fixes https://oss-fuzz.com/testcase-detail/6377756666757120
8708b9e0	2023-02-06T14:51:25	[GPOS] Avoid O(n^2) behavior in mark-attachment Better implementation; avoids arbitrary limit on look-back.
09b7fce8	2023-01-28T13:21:27	Make includes relative
e25e4c9a	2023-01-28T00:10:47	Move GDEF table to src/OT/Layout/GDEF
749df4ee	2023-01-21T16:00:54	[PairPosFormat1] One more
b648ceb7	2023-01-21T15:58:59	[PairSet] Optimize last commit
89162324	2023-01-21T15:57:18	[PairSet] Unify get_size()
b63159e8	2023-01-21T15:50:48	[PairPosFormat1] Fix stride Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55287 and generally the lookup with MediumTypes.
be8a87c4	2023-01-21T15:00:41	Move TRACE_DISPATCH after may_recurse() Such that we don't get memory access issues if DEBUG_SANITIZE is on and may_recurse() returns false.
ed023f66	2023-01-12T17:04:24	Enable -Wformat-signedness And fix the codebase.
b33eb9ec	2023-01-11T11:20:04	[subset-plan] Simplify layout_variation_idx_delta_map allocation
0728098e	2023-01-10T10:18:29	[Coverage] Speed up subset for too-large Coverage tables Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54980
301f6e4b	2022-12-04T11:46:10	[Coverage] Remove TODO
dbbb8e80	2022-12-04T11:13:39	Revert "[map] Add hb_map_filter_invalid" This reverts commit 8d7e92111786b21906157127c24b72b1e444e6e7. Surprisingly this slowed NotoNastaliqUrdu benchmark down by a couple percent instead of speeding it up.
8d7e9211	2022-12-04T11:01:45	[map] Add hb_map_filter_invalid Use it in one place.
41a8597f	2022-12-03T13:23:26	[layout] Simplify CoverageFormat2 intersects_coverage()
1f4d8cca	2022-12-03T13:17:15	[CoverageFormat2] Optimize intersects()
c482b061	2022-12-03T13:14:31	[gpos] Optimize PairPosFormat1::intersects
4d19c724	2022-12-03T09:57:29	[CoverageFormat1] Speed up intersects() Speeds up SourceHanSerif/10000 benchmark (not in test suite) by 32%!
2a7a1d5a	2022-12-02T12:33:24	[Coverage] Avoid timeout on broken ranges Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53929
72fabef0	2022-11-30T11:37:49	[SingleSubstFormat2] Speed up closure

f380a328

2023-08-25T14:01:01

Fix some typos.

483d4a87

2023-08-06T14:40:45

Fix bot

7989702a

2023-08-06T14:17:50

Audit and fix up serialize_subset uses Fixes https://github.com/harfbuzz/harfbuzz/issues/4362

dcd3afca

2023-08-01T20:09:34

[skippy-iter] Remove unused num_items

9cdc043c

2023-07-31T18:53:29

[Cursive] Only sanitize what we use

44026aa8

2023-07-31T16:47:06

[Cursive] Minor, adjust unsafe-to-concat if prev didn't sanitize

b382e616

2023-07-31T16:29:28

[GPOS] Sanitize Cursive positioning anchors lazily Speeds up Duployan-Regular.otf load time by 30%. Doesn't seem to slow down shaping in a measurable way.

62e6f783

2023-07-25T08:32:21

[Cursive] round

60db1427

2023-07-24T20:49:32

[layout] Remove unused "max-size" cruft

c91899be

2023-07-21T11:43:47

[gdef] Use set-digest for mark-filterint-sets Speeds up Noto Duployan-Regular.otf by 45% percent!

837885f0

2023-07-20T12:58:16

Revert "[sanitize/Coverage] Keep a map of sane coverages" This reverts commit a689114898cc3e8f1c6ba7cc49cd6c3639d91250.

0ab90671

2023-07-20T12:57:16

[sanitize/Coverage] Keep a map of sane coverages Fonts like Gulzar reuse the same coverage over a thousand times sometimes. However, this doesn't speed up sanitize unfortunately. Looks like calling Coverage::sanitize() is already very fast. We're just doing A LOT of it. The map slowed it down in fact. A set was even slower. Going to revert.

aa381ae9

2023-07-18T10:42:13

[ReverseChain] Remove SIZE_MAX Oops. Can't set it since the struct has offsets.

e583c9e9

2023-07-18T10:34:26

[ReverseChain] Add max-size

49730531

2023-07-16T13:09:49

Config

645fabd1

2023-07-16T11:36:59

[gsubgpos] Vastly speed up ChainRuleSet / RuleSet matching Match the first component in a fast loop. Idea replicated from LigatureSet. Speeds up Gulzar shaping by 22%! 37% in NotoNastaliqUrdu!

77080f86

2023-07-16T11:26:32

.

62e10c9f

2023-07-16T08:43:18

Revert "[gsubgpos] Allocate iterators further up" This reverts commit b9f364b8fcacf8ab32d0272190d8509f214e55f2.

b9f364b8

2023-07-16T08:42:36

[gsubgpos] Allocate iterators further up To avoid calling set_match_func repeatedly. Doesn't show speedup. Going to revert.

f94508ed

2023-07-15T15:28:19

[Ligature] Micro-optimize

c41b0d7b

2023-07-10T17:23:58

[sanitize/PairValueRecord] Add a max_size for faster sanitize

d84c5f29

2023-07-08T15:22:51

Revert "[gsubgpos] Make (Chain)Context funcs templatized" This reverts commit 03ac08d267eb7ad2f1ac039115fc0030ea475fae.

e73223b9

2023-07-08T15:22:18

[gsubgpos] Make (Chain)Context funcs templatized Unfortunately they still won't be inlined because the matcher_t needs function pointers. So, no speed up. Going to revert.

0b879afb

2023-07-07T22:35:43

[sanitize] Inline Coverage::sanitize

2006d321

2023-07-07T17:07:11

[sanitize] Add "fastpath" for ArrayOfOffset16To<> objects with max size Unfortunately this doesn't speed up NotoNastaliq or Gulzar as I was hoping for. Their GSUB tables are not large enough for this to kick in...

7a85663c

2023-07-07T19:21:18

Revert "[sanitize] Add "fastpath" for ArrayOfOffset16To<> objects with max size" This reverts commit 10f8556c73f3cf231c6b5a900a6a1903f9516f90. This was, unfortunately, wrong :(.

10f8556c

2023-07-07T17:07:11

[sanitize] Add "fastpath" for ArrayOfOffset16To<> objects with max size

68b78914

2023-07-07T17:07:11

[sanitize] Add "fastpath" for ArrayOfOffset16To<> objects with max size Unfortunately this doesn't speed up NotoNastaliq or Gulzar as I was hoping for. Their GSUB tables are not large enough for this to kick in...

90752cd5

2023-07-07T15:47:28

[type] Add HeadlessArray16Of

eae82788

2023-07-02T13:07:26

[GPOS] Micro-optimize lazy_some_gpos check Speeds up 11% in: BM_Font/load_face_and_shape/Roboto-Regular.ttf/hb

46e54a23

2023-07-02T13:03:16

[GPOS] Remove extra check

2d6091fc

2023-06-30T11:48:56

[GPOS] Make AnchorMatrix sanitize lazy again Was reverted in the previous commit, because it was incomplete.

0887382c

2023-06-30T11:39:46

[GPOS] Fix sanitize

690af7aa

2023-06-30T10:36:01

[GPOS] Sanitize Device tables lazily This speeds up face loading for variable fonts by 80%! Comparing before to after Benchmark Time CPU Time Old Time New CPU Old CPU New --------------------------------------------------------------------------------------------------------------------------------------------------------------- BM_Font/load_face_and_shape/Roboto-Regular.ttf/hb -0.0368 -0.0366 20 20 20 19 BM_Font/load_face_and_shape/RobotoFlex-Variable.ttf/hb -0.7149 -0.7162 77 22 77 22 BM_Font/load_face_and_shape/RobotoFlex-Variable.ttf/var/hb -0.7241 -0.7255 80 22 79 22 BM_Font/load_face_and_shape/SourceSansPro-Regular.otf/hb -0.1441 -0.1445 28 24 28 24 BM_Font/load_face_and_shape/AdobeVFPrototype.otf/hb -0.7893 -0.7910 66 14 66 14 BM_Font/load_face_and_shape/AdobeVFPrototype.otf/var/hb -0.7865 -0.7882 67 14 66 14 BM_Font/load_face_and_shape/SourceSerifVariable-Roman.ttf/hb -0.8895 -0.8900 227 25 226 25 BM_Font/load_face_and_shape/SourceSerifVariable-Roman.ttf/var/hb -0.8895 -0.8900 226 25 225 25 BM_Font/load_face_and_shape/Comfortaa-Regular-new.ttf/hb -0.5512 -0.5531 42 19 42 19 BM_Font/load_face_and_shape/NotoNastaliqUrdu-Regular.ttf/hb -0.1511 -0.1510 227 192 225 191 BM_Font/load_face_and_shape/NotoSerifMyanmar-Regular.otf/hb -0.1494 -0.1498 41 35 40 34 OVERALL_GEOMEAN -0.6443 -0.6456 0 0 0 0

d338506c

2023-06-30T10:13:05

[GPOS] Reuse sanitize_values_stride_unsafe in another function

10b9ca54

2023-06-28T07:46:33

Fix typo: subtitution -> substitution

67b16247

2023-06-07T16:15:48

[set] Simplify a few set iterations as range loop

dcecb4d1

2023-06-05T16:03:36

[subset/ValueFormat] Micro-optimize

469e82a2

2023-06-05T15:23:22

[subset/PairPos] Micro-optimize

6593d2aa

2023-06-05T15:11:43

[subset/PairPos] Speed up

82741304

2023-06-04T09:41:41

[subset] start_embed never returns nullptr Remove checks.

ca27925d

2023-06-03T16:18:15

Use hb_codepoint_pair_t in more places

2f05c32c

2023-05-08T14:29:07

[Coverage] Minor access arrayZ directly in a couple places

4ad443d5

2023-05-08T10:14:43

[Coverage/ClassDef] Don't call qsort if sorted already

8df5cdbc

2023-05-07T15:49:50

[Coverage/ClassDef] Handle glyphID overflow in serialize

71910fdf

2023-05-05T15:37:07

[Coverage] Remove unnecessary check

ee9b631d

2023-05-05T10:26:57

[SingleSubst] Fix condition to upgrade to beyond-64k

0e9ebf10

2023-05-05T06:57:51

[config] Add HB_OPTIMIZE_SIZE_MORE and enable in HB_TINY Part of https://github.com/harfbuzz/harfbuzz/issues/4220

31949636

2023-05-04T16:29:48

Revert "[layout] Cache subtable coverages in hb_map_t" This reverts commit 7a715d74e06720c17d28ba7b4c3da0b583f8d1d3.

7a715d74

2023-05-04T16:28:11

[layout] Cache subtable coverages in hb_map_t Proof-of-concept. Going to revert. Memory consumption is more than I like. It does speed up Roboto shaping another 15% though. Perhaps if we could add logic to choose which subtables to cache, this might be a useful approach.

1be39729

2023-05-04T13:18:34

[subset] Support unordered glyphlist in Coverage/ClassDef serialize

a10fad7c

2023-05-04T11:32:07

[config] Add HB_NO_GDEF_CACHE

319a488b

2023-05-04T10:36:48

[GDEF] Fix null check Fixes https://oss-fuzz.com/testcase-detail/5920994267889664

fb795dc3

2023-05-03T15:17:20

[GPOS] Optimize iterator reset Speeds up Gulzar shaping 5%.

8a8fc37c

2023-05-03T14:57:00

[GDEF] Use a cache for glyph classes Shows 5% speedup for Roboto shaping.

323a1fe4

2023-05-03T13:52:43

[PairPos] Fix what I broke

a6f5f0dc

2023-05-03T13:45:39

[PairSet] Micro-optimize

4e495eb0

2023-05-03T13:40:46

[PairPos] Add an unlikely

5528bdd4

2023-05-03T13:35:10

[PairPos] Remove a likely

ae0fe02d

2023-05-03T13:24:08

[Ligature] Use slow path if 2 or fewer ligatures

ddd6c2e7

2023-05-03T13:16:39

[Ligature] Micro-optimize more

045ae4b0

2023-05-03T13:08:43

[GPOS] Micro-optimize

0fe90ebc

2023-05-03T12:49:31

[Ligature] Micro-optimize

51061d28

2023-05-03T12:46:04

[Ligature] Minor tweak to recent code

7881eadf

2023-05-02T14:56:18

[Ligature] Speed up Match the first component of the ligature in the LigatureSet loop. Speeds up Roboto shaping by 25%. I don't think it breaks anything. The test suite seems happy.

95f15557

2023-05-02T16:37:31

[PairPosFormat2] Micro-optimize and don't kern if class2=0 If class2=0 we expect no kerning to happen. Just bail out.

59967154

2023-05-02T15:52:43

[PairPos2] Micro-optimize

a8b8eb53

2023-05-01T16:56:29

[Coverage] Micro-optimize

af21ea35

2023-05-01T16:34:50

[Coverage/serialize] Micro-optimize

e826d94a

2023-04-30T11:11:19

Call roundf() instead of _hb_roundf() The former is defined as a macro expanding to the latter.

06504cb0

2023-04-28T13:13:18

[PairPosFormat2] Minor use false instead of 0

9ed43dc5

2023-04-28T12:38:26

[PairPosFormat2] Reuse a value

8658c257

2023-04-17T19:46:46

[subset] In LigatureSubst subsetting, check if the ligature glyph is in glyphset. Otherwise coverage will not match the retained ligature sets.

a84cae42

2023-03-15T02:39:57

[subset] Don't add invalid gids (-1) to the glyphset when loading glyph map from the accelerator.

7327006d

2023-03-07T21:06:01

[GSUB] Support SingleSubst in get_glyph_alternates Fixes https://github.com/harfbuzz/harfbuzz/discussions/4146

08784baf

2023-03-02T10:48:30

[GSUB/GPOS] Fix sanitization in Format1 Fixes https://oss-fuzz.com/testcase-detail/5120727025319936

c67c0086

2023-03-01T13:32:44

[GPOS] Fix indexing in MarkLigPos This was broken in 8708b9e081. Fixes https://github.com/harfbuzz/harfbuzz/issues/4142

918193eb

2023-02-22T23:11:29

[subset] fix a class of fuzzer timeouts caused by large shared coverage tables. More acurately estimates the op count for CoverageFormat2 tables as the population size instead of the size in bytes.

adccc535

2023-02-17T12:29:42

[MarkBase] Adjust base-finding logic Fixes https://github.com/harfbuzz/harfbuzz/issues/4124

64fa5cd4

2023-02-07T15:50:36

[GPOS] Fix assert fail introduced recently Was introduced in 8708b9e081192786c027bb7f5f23d76dbe5c19e8. If these lookups are recursed to from (Chain)Context out-of-order, it was possible that last_base > buffer->idx, in which case we were attaching marks to a base after them... and an assertion was failing fortunately. Fixes https://oss-fuzz.com/testcase-detail/6377756666757120

8708b9e0

2023-02-06T14:51:25

[GPOS] Avoid O(n^2) behavior in mark-attachment Better implementation; avoids arbitrary limit on look-back.

09b7fce8

2023-01-28T13:21:27

Make includes relative

e25e4c9a

2023-01-28T00:10:47

Move GDEF table to src/OT/Layout/GDEF

749df4ee

2023-01-21T16:00:54

[PairPosFormat1] One more

b648ceb7

2023-01-21T15:58:59

[PairSet] Optimize last commit

89162324

2023-01-21T15:57:18

[PairSet] Unify get_size()

b63159e8

2023-01-21T15:50:48

[PairPosFormat1] Fix stride Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55287 and generally the lookup with MediumTypes.

be8a87c4

2023-01-21T15:00:41

Move TRACE_DISPATCH after may_recurse() Such that we don't get memory access issues if DEBUG_SANITIZE is on and may_recurse() returns false.

ed023f66

2023-01-12T17:04:24

Enable -Wformat-signedness And fix the codebase.

b33eb9ec

2023-01-11T11:20:04

[subset-plan] Simplify layout_variation_idx_delta_map allocation

0728098e

2023-01-10T10:18:29

[Coverage] Speed up subset for too-large Coverage tables Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54980

301f6e4b

2022-12-04T11:46:10

[Coverage] Remove TODO

dbbb8e80

2022-12-04T11:13:39

Revert "[map] Add hb_map_filter_invalid" This reverts commit 8d7e92111786b21906157127c24b72b1e444e6e7. Surprisingly this slowed NotoNastaliqUrdu benchmark down by a couple percent instead of speeding it up.

8d7e9211

2022-12-04T11:01:45

[map] Add hb_map_filter_invalid Use it in one place.

41a8597f

2022-12-03T13:23:26

[layout] Simplify CoverageFormat2 intersects_coverage()

1f4d8cca

2022-12-03T13:17:15

[CoverageFormat2] Optimize intersects()

c482b061

2022-12-03T13:14:31

[gpos] Optimize PairPosFormat1::intersects

4d19c724

2022-12-03T09:57:29

[CoverageFormat1] Speed up intersects() Speeds up SourceHanSerif/10000 benchmark (not in test suite) by 32%!

2a7a1d5a

2022-12-02T12:33:24

[Coverage] Avoid timeout on broken ranges Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53929

72fabef0

2022-11-30T11:37:49

[SingleSubstFormat2] Speed up closure

kc3-lang/harfbuzz/src/OT/Layout

src/OT/Layout

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