kc3-lang/harfbuzz/src/OT/Layout/GPOS

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src/OT/Layout/GPOS

Branch - branch -main

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Log

Author	Commit	Date	CI	Message
	fc761725	2025-09-24T12:42:53		[ValueFormat] comment
	d350cb83	2025-09-23T19:47:01		Speed up ValueFormat len() calc
	a89c36e0	2025-09-02T13:05:11		[GPOS/kerx] Support attaching marks to bases after them (#5520) See comments. Fuzzer found. I'm surprised this was not discovered before though. I hope I have not missed anything. Fixes https://oss-fuzz.com/testcase-detail/6399443634290688
	c61a4f26	2025-08-29T02:11:52		[GPOS] Micro-optimize offset propagation
	bc6eba94	2025-08-27T13:29:15		Fix kerx attachment shaping issues (#5515) * [ot-shape] Don't zero offsets of default-ignorables Part of fixing https://github.com/harfbuzz/harfbuzz/issues/5514 * [ot-shape] Propagate chain offsets in opposite direction if RTL Part of fixing https://github.com/harfbuzz/harfbuzz/issues/5514
	8bdedb3b	2025-08-20T00:27:41		Limit external caches (#5483) * Revert "[external_cache] Remove a conditional (#5471)" This reverts commit 9794ad9e00ff66741c36ec9511e3e968663b74a7. * Limit external_cache to 8 subtables per lookup
	9794ad9e	2025-08-16T15:51:05		[external_cache] Remove a conditional (#5471)
	8268473a	2025-08-14T21:57:19		Add external_cache_create separate from cache_func (#5463) * Add external_cache_create separate from cache_func * Simplify cache_func_t signature * Rename a cache type * Rename another cache type
	6ec1b279	2025-08-11T01:14:19		[lookup] Give each subtable an external-cache opportunity (#5449) * [lookup] Give each subtable an external-cache opportunity * [subtable-cache] Fixups
	cd49b14b	2025-07-29T14:32:26		[subset] add more aggressive pruning for MarkLigPos and MarkMarkPos (#5434) Remove lig/mark glyphs without defined anchor points after subsetting
	7b56d3a1	2025-07-26T05:35:57		[ot-layout] s/hb_ot_lookup_cache_t/hb_ot_layout_mapping_cache_t/g
	09978fc5	2025-07-26T04:20:59		[ot] Rename hb_ot_lookup_cache_op_t, and cache to subtable_cache
	879c4ac7	2025-07-24T14:13:16		[subset] MarkBasePos: remove base glyphs with empty base record BaseRecord could become empty if all anchor offsets for retained mark classes are null
	5dbb8141	2025-07-11T08:58:01		[subset] AnchorFormat3: better check for when should downgrade to format1
	95dc1109	2025-07-10T09:52:07		[subset] bug fix Don't downgrade to format1 when subsetting
	47089fe7	2025-05-28T17:10:22		Big misc changes - Make geometry types into templates taking float or double. - Changes to paint() transform elimination. - Add font->has_nonzero_coords and use it across. - Extensions to avar processing for otherwise invalid mappings.
	c124252d	2025-05-31T16:32:58		[algs] Add support for little-endian int types As well as 64bit-int, and float types. Add Align type.
	a13fd9ae	2025-05-21T12:23:19		Merge branch 'main' into HVF
	89e28a23	2025-05-10T16:30:35		[skippy-iter] Use auto for type deduction
	d92106df	2025-04-24T21:42:20		Merge branch 'main' into HVF
	59334682	2025-04-23T20:56:32		[shape] Only apply slant to shaping results if horizontal
	fd9a2f23	2025-04-07T17:44:45		[GPOS] Regain speed
	14ecea57	2025-03-27T15:44:49		Merge branch 'main' into HVF
	192d264a	2025-03-25T13:32:01		[subset] remove divisions when computing the cost of binary search
	9b6da299	2025-03-02T17:00:14		[font/var] Try to regain performance of all-normalized-coords=0
	d0710061	2025-01-17T19:32:34		[open-type/algs] Rename Int to Num in some types In anticipation of float types.
	b8327fe6	2025-02-06T20:01:12		Fix compiler errors
	c7378294	2025-02-06T01:42:25		[OT] Remove likely() from coverage check Not that it matters, but because of the set-digest, this path is not very likely() anymore.
	cad264b2	2025-02-06T00:56:16		Indent
	69057e6e	2025-02-05T19:50:38		[Ligature] Cache coverage the same way as PairPos1 Another 7% down on Roboto-Regular.
	5be62a9f	2025-02-05T19:30:01		[PairPosFormat1] Use a coverage cache as well Speeds up Arial shaping by 3%.
	f22943a2	2025-02-05T18:51:11		[PairPos] Cache coverage as well Another 3% down in Roboto-Regular.
	726af2e4	2025-02-05T18:10:40		[PairPos] Use a class cache 10% speedup on Roboto-Regular. 5% on SF Pro.
	0dace9f3	2024-09-21T12:38:16		[PairPos] Forgo an optimization for the sake of compatibility Fixes https://github.com/harfbuzz/harfbuzz/issues/4797
	1cb47eff	2024-02-06T14:49:31		Rename VariationStore to ItemVariationStore
	ef1f5c4e	2024-01-08T22:17:55		[subset] Re-use common Coverage subsetting function in PairPosFormat2. Was using an identical but less efficient version. Fixes fuzzer test case: https://oss-fuzz.com/testcase-detail/6151390002806784
	2d001a0a	2023-11-08T11:11:51		[subset] OTS doesn't allow ligature attachment offset to be 0
	d10cc79a	2023-11-06T10:41:30		Move a couple of barriers
	3a9262cc	2023-11-04T12:52:46		[sanitize] More hb_barrier() annotations
	30672c7e	2023-11-03T18:52:03		Add hb_barrier() And annotate some more.
	775320a4	2023-11-03T18:38:12		[sanitize] Add barriers to runtime-checked values
	f05636e1	2023-11-02T09:18:15		[instancer] fix build issue after rebase
	6c017a11	2023-11-01T09:54:46		[instancer] SinglePos/PairPos: do not strip_hints for partial instancing
	2804127a	2023-10-31T15:12:55		[Value] Typed offsets
	38546acd	2023-10-31T14:56:09		[typed-offset] Fix sanitize()
	62117801	2023-10-31T14:50:45		[AnchorMatrix] Annotate offset base type
	4f219385	2023-10-31T14:33:23		[CursivePosFormat1] Use typed offsets for EntryExitRecord
	8585d600	2023-10-17T14:30:17		[instancer] update variable device flags in ValueFormat
	fc563bb4	2023-10-05T11:07:17		Merge pull request #4421 from googlefonts/GDEF_GPOS [instancer] support GDEF/GPOS tables
	333946b0	2023-09-28T19:02:37		[subset] Fix fuzzer timeout. Fixes https://oss-fuzz.com/testcase-detail/5458896606855168. Limit iteration over coverage in MarkLigPosFormat1 subsetting to the number of glyphs in the liga array.
	f39e9bf1	2023-09-25T08:59:11		[instancer] instantiate GPOS Just need to update var_idxes and deltas
	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
	c41b0d7b	2023-07-10T17:23:58		[sanitize/PairValueRecord] Add a max_size for faster sanitize
	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
	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.
	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.
	fb795dc3	2023-05-03T15:17:20		[GPOS] Optimize iterator reset Speeds up Gulzar shaping 5%.
	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
	045ae4b0	2023-05-03T13:08:43		[GPOS] Micro-optimize
	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
	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
	a84cae42	2023-03-15T02:39:57		[subset] Don't add invalid gids (-1) to the glyphset when loading glyph map from the accelerator.
	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.
	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
	c482b061	2022-12-03T13:14:31		[gpos] Optimize PairPosFormat1::intersects
	3e151139	2022-11-28T14:23:49		[PairPos] Optimize get_effective_value_format Speeds up BM_subset/subset_glyphs/SourceHanSans-Regular_subset.otf/nohinting/512 12%.