kc3-lang/harfbuzz/src/OT/Layout

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src/OT/Layout

Branch - branch -main

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Log

Author	Commit	Date	CI	Message
	07ee609f	2025-10-20T20:06:43		Fix invalid pointer conversions in graph Coverage. (#5622) For #5604.
	4a26e289	2025-09-30T15:31:04		Add `hb_ot_layout_lookup_collect_glyph_alternates()` (#5367) * [map] Massage operator << overloads * [ot-layout] Add +hb_ot_layout_lookup_collect_glyph_alternates To collect all glyph mapping from SingleSubst or AlternateSubst lookups in one call. Needed by FreeType autohinter for performance. New API: +hb_ot_layout_lookup_collect_glyph_alternates() * [layout] Change hb_ot_layout_lookup_collect_glyph_alternates() API https://github.com/harfbuzz/harfbuzz/pull/5367#discussion_r2149019638
	af286b8f	2025-09-30T12:59:34		[Coverage] Simplify initialization
	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
	6b62d367	2025-08-25T14:02:59		[ligature-cache] Handle case of ligature with no components (#5500) In the cache with "seconds" set-digest.
	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
	22545743	2025-08-20T00:06:00		Match positions no malloc (#5481) * Reduce allocation of match_positions by caching one in ctx * Use a stack-array for small match-positions This surgically enables stack-backed storage in vector. * Handle match-positions alloc failure And make allocations unchecked. * Clean up CFF hack to use static storage in vector * Fixup for match_positions allocations * Fix vector handling of foreign arrays memory management
	9794ad9e	2025-08-16T15:51:05		[external_cache] Remove a conditional (#5471)
	368598b5	2025-08-16T00:38:42		Increase match_positions stack allocation from 4 to 8 (#5468) Slight speedup on NotoNastaliq.
	dae2c8bb	2025-08-14T22:26:40		[ligature] Add a set-digest on the second component (#5464)
	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
	cf614fc8	2025-08-14T16:23:45		[LigatureSet] Use slow path only if <= 1 ligatures (#5462)
	4aa7dcba	2025-08-12T03:18:38		[Coverage cache] Micro-optimize
	a4dbb7d4	2025-08-12T02:34:49		[Coverage] Cache NOT_COVERED effectively (#5453) Before, our cache.set was always failing for NOT_COVERED, making the cache ineffective for uncovered glyphs. Fix that. Some nice speedups in Latin fonts.
	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
	11daf566	2025-07-26T06:31:48		[GDEF] Rename a var
	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
	786f8381	2025-07-25T04:00:37		[GDEF] Use bit-set instead of set-digest for mark glyph classes Most fonts don't even have these. Some, like NotoSansDuployan have huge ones. This speeds it up by 25%.
	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
	3d154bc6	2025-07-14T13:53:27		[buffer-message] Fix potential buffer overflow... ...when buffer messaging is enabled and with malicious font. Fixes https://github.com/harfbuzz/harfbuzz/security/advisories/GHSA-p965-5rr7-9mhq
	5dbb8141	2025-07-11T08:58:01		[subset] AnchorFormat3: better check for when should downgrade to format1
	6ed598e1	2025-07-10T13:03:44		Merge pull request #5382 from harfbuzz/lig_split [repacker] Implement table splitting for LigatureSubst
	95dc1109	2025-07-10T09:52:07		[subset] bug fix Don't downgrade to format1 when subsetting
	38ab13c6	2025-07-04T22:31:04		[repacker] add support for splitting GSUB Ligature lookups.
	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
	e3c2910f	2025-04-02T01:48:12		Merge branch 'main' into HVF
	7f5fafec	2025-04-01T21:35:28		[GDEF] Simplify cache declaration
	14ecea57	2025-03-27T15:44:49		Merge branch 'main' into HVF
	5ebe36e1	2025-03-27T13:09:18		[subset] bug fix for CaretValueFormat3 Don't return false in case of a Hinting Device table
	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.
	7a746c32	2025-02-05T19:38:25		[Coverage] Fix cache cost reporting
	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.
	48774052	2024-09-22T13:00:09		[GDEF] Sprinkle some hb_barrier()s
	0dace9f3	2024-09-21T12:38:16		[PairPos] Forgo an optimization for the sake of compatibility Fixes https://github.com/harfbuzz/harfbuzz/issues/4797
	ba1f194a	2024-05-02T12:18:11		[gsubgpos] Reduce stack use in recursion
	c04d0a29	2024-04-25T14:57:36		[subset] generate colrv1 varsotre inner_maps in the plan Also merge remap_variation_indices APIs used by GDEF and BASE into 1
	992953fd	2024-03-28T23:12:21		[subset] updated comment.
	96f0038e	2024-03-28T23:11:16		[subset] cast.
	6e874817	2024-03-27T17:47:57		[subset] add virtual links to keep the gdef varstore last.
	71456071	2024-03-25T21:41:16		[subset] place the gdef var store at the end of the GDEF table. It appears that some font processors assume it is the last sub table.
	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
	413af0a9	2023-11-02T11:14:48		[instancer] When partial instancing, subset LigCaretList after VarStore instantiation
	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
	b37cc61d	2023-10-31T14:26:42		Add base types to OffsetTo<> Unused so far.
	9fc45f70	2023-10-05T14:06:39		[ReverseChainSingleSubst] Minor optimization
	8ceed6ee	2023-10-18T15:43:40		[subset] fix Lookup.MarkFilteringSet to use the new indices
	510456e9	2023-10-18T14:26:11		[subset] don't retain empty coverage in MarkGlyphSetsDef
	16ee24c0	2023-10-18T12:43:36		[subset] bug fix for GDEF don't use embed(this), snapshot and revert to lower version if needed
	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
	c8594baa	2023-09-21T11:45:01		[instancer] instantiate GDEF varStore And update layout var idxes accordingly
	77f24d82	2023-09-22T14:47:11		[instancer] remap layout var_idxes code update make hb_collect_variation_indices_context_t only collect layout variation indices.
	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