kc3-lang/harfbuzz/src/hb-ot-layout.cc

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src/hb-ot-layout.cc

Branch - branch -main

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Log

Author	Commit	Date	CI	Message
	cb59b347	2025-10-01T08:24:34		12.1.0
	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
	3ce3853a	2025-09-22T17:17:28		Merge pull request #5575 from harfbuzz/apply-forward-speedup [apply-forward] Speed up glyph skipping
	eeb16bd4	2025-09-22T16:33:52		[apply-forward] Speed up glyph skipping 6% speedup in Roboto-Regular benchmark.
	ccfd1ae2	2025-09-22T16:48:32		[buffer] Retain digest in the buffer We don't have to reinitialize it for GPOS now, showing some 1.5% speedup on Roboto-Regular benchmark. Over time we can change the various gsub_pauses to update the digest in-place instead of returning true.
	724ae78d	2025-08-25T13:14:43		Revert "[check-glyph-properties] Cache current lookup-prop's matching result." (#5497) This reverts commit 5b6836e10802266b4c216208e517d617c0a75693. This broke some shaping, namely, "j̣̈́J̣J̈́" with Google Sans, and is quite tricky to debug. Since this slowed down everything other than Duployan, and we also decided NOT to port it to HarfRust, just revert and keep the simpler and more reasonable code logic.
	0e6e18e7	2025-08-15T14:27:33		Rename a method
	a9a78e1b	2025-08-14T02:04:06		[main-loop] Hypothetically remove a branch (#5458) Don't rely on the compiler.
	7d1ef008	2025-08-14T01:03:18		Remove an unneeded parameter (#5457)
	0f6323e1	2025-08-10T15:15:08		[layout] Rename a variable
	3c18f60d	2025-07-25T05:41:07		[check-glyph-property] Move the cache check to MarkFilteringSets only
	5b6836e1	2025-07-25T04:42:49		[check-glyph-properties] Cache current lookup-prop's matching result. Slows down everything other than speeding up Duployan.
	3e93786c	2025-05-21T14:50:35		[ot-layout] More (nullable) instead of (optional) Honestly I don't know why we should ever use (optional). Looks like (nullable) applies to all (optional) and some more places. https://gi.readthedocs.io/en/latest/annotations/giannotations.html
	4a8a3e12	2025-05-21T14:45:42		[ot-layout] Docs Fixes https://github.com/harfbuzz/harfbuzz/issues/5335
	f50490d6	2025-05-15T18:28:44		Add hb_scalar_cache_t
	8f413a53	2025-04-15T10:03:16		[layout] Docs
	810fbedf	2025-04-03T20:59:23		[shape] Use font-data for GDEF varStore cache Last remaining alloc during shaping is gone! Fixes https://github.com/harfbuzz/harfbuzz/issues/5237
	7b8ae3d0	2025-03-13T10:44:40		[kern/kerx] Make zero-malloc
	7cf63429	2025-02-20T12:05:17		[ot-layout] Use a variable Doesn't make a diff in the generated code I believe, but is nice.
	6091abcc	2025-02-06T02:40:24		[buffer] Avoid a copy in collect_codepoints()
	e5e3bc40	2025-02-06T02:36:26		[buffer] Merge two functions into a template
	7862c7c5	2025-02-04T21:37:27		Rename a method again
	80bbb0b2	2025-02-04T18:42:33		[set-digest] Rename a method
	773fe850	2024-11-20T17:20:49		[layout] Blocklist the GDEF table of various Courier New versions These files have incorrectly give several base glyphs GDEF mark glyph class leading in zeroing there advance widths. Fixes https://github.com/harfbuzz/harfbuzz/issues/4936
	0037ee28	2024-05-24T08:10:15		Merge pull request #4578 from harfbuzz/varc-table `VARC` table
	e2ab6c7b	2024-05-12T15:25:13		[kern/kerx] Add accelerator and set-digest filtering
	ebbec771	2024-05-12T15:10:21		[kern] Use the sanitized version from face I'm not sure why kern/kerx/morx were written this way before.
	ac411f26	2024-04-23T13:26:53		[Condition] Finish evaluation of ConditionValue https://github.com/adobe-type-tools/opentype-spec-drafts/blob/main/condvalue_spec.md
	2f41d54b	2024-01-07T13:43:50		Fix old-compiler warning
	aca55dbe	2023-11-03T10:51:37		[instancer] fix feature variations collect lookups We already know which record to keep, so just collect lookups and no need to check the substitutes_map
	091e538d	2023-10-26T12:52:08		[instancer] support partial instancing for FeatureVariations
	6190bb0b	2023-10-16T14:08:31		[layout] Change order of feature collection See comments for rationale. Fixes https://github.com/harfbuzz/harfbuzz/issues/4445
	fcb9e591	2023-08-01T00:57:06		8.1.0
	29ad9304	2023-07-30T17:06:25		[layout] Minor add prealloc
	dc35a0fb	2023-07-30T16:32:11		[ot-map] Speed up feature finding New API: - hb_ot_layout_collect_feature_map()
	b4305532	2023-07-09T02:54:30		8.0.0
	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
	f0f6f6a8	2023-06-22T10:58:44		[layout] More message massaging
	37555f84	2023-06-22T10:21:19		[layout] Trace chosen script tag
	67b16247	2023-06-07T16:15:48		[set] Simplify a few set iterations as range loop
	e047b1ab	2023-05-20T10:27:31		[layout] Improve docs
	02e0e939	2023-05-19T13:18:06		[layout] Fetch default font extents if localized extents not found
	8ccc1ff2	2023-05-19T13:14:57		[layout] Mark language as nullable GI needs it apparently.
	792ca22c	2023-05-19T11:42:20		[layout] Document new API
	0894813a	2023-05-19T11:30:03		[layout] Add "2" version of BASE table API ...that do the script/language resolution. Part of https://github.com/harfbuzz/harfbuzz/pull/4237 Ref https://github.com/harfbuzz/harfbuzz/issues/3439
	3e110c69	2023-05-19T11:06:26		[layout] Add hb_ot_layout_get_font_extents() Untested. Fixes https://github.com/harfbuzz/harfbuzz/issues/3290
	3f2401e2	2023-05-03T16:56:52		[layout] Don't init iters successively multiple times
	8a8fc37c	2023-05-03T14:57:00		[GDEF] Use a cache for glyph classes Shows 5% speedup for Roboto shaping.
	577bc8a2	2023-05-01T14:01:08		[layout] Micro-optimize
	5b78e9a9	2023-05-01T13:45:42		[layout] Whitespace
	7c9ed76d	2023-04-27T03:26:57		[doc] Use simpler markdown link syntax
	48f8ed7e	2023-04-22T10:11:22		Docs
	8bdaeddf	2023-02-11T23:44:58		7.0.0
	0ea8bbd9	2023-02-11T20:01:06		[doc] Use XSince for REPLACEME/EXPERIMENTAL To hide them from gtk-doc so that we can finally enable gtkdoc-check.
	7a4bd97e	2023-01-31T14:59:39		[layout] Build lookup accelerators lazily on-demand Reduces memory consumption for large multi-script fonts drastically.
	83353f13	2023-01-31T14:32:14		[layout] Reduce memory use slightly By using raw pointer instead of vector for subtable accelerator. To be used for more memory saving by making subtable accelerators lazy-loaded by shape-plans for large fonts.
	04056d44	2023-01-28T22:52:25		[layout] Optimize more buffer message calls Continuation of da7b66c1f8bbf7147f8113.
	da7b66c1	2023-01-27T16:39:06		[layout] Optimize buffer message calls Those aren't exactly free. They were showing up in profiles.
	edec8946	2023-01-20T09:28:59		New API: hb_ot_layout_script_select_language2() Variant that outputs chosen_language. Not sure why the original API didn't have this. The script counterpart has.
	2fd8e36e	2023-01-20T09:09:14		[layout] Fix return value of chosen_script when matching fails
	ed023f66	2023-01-12T17:04:24		Enable -Wformat-signedness And fix the codebase.
	a81dd105	2022-11-26T13:43:15		[layout] Adjust printing feature tags For required-feature, print spaces, not nul bytes.
	56e3868b	2022-11-26T13:14:23		[layout/buffer-message] Print feature name in lookup buffer messages
	ed43bc51	2022-11-20T13:10:19		[buffer] Move delete_glyphs_inplace() here
	561946c7	2022-11-16T17:58:59		[layout] Comment
	27a8fe7d	2022-11-16T17:49:44		[layout] Only update buffer digest if buffer changed by a pause
	8b2a2111	2022-11-16T16:57:44		[layout] Keep digest updated in the context Don't recompute digest after every (applied) GSUB lookup.
	a5964a2d	2022-11-16T16:45:23		[layout] Minor simplify
	80b87588	2022-11-16T16:26:41		[layout] Add a buffer message for digest-skipped lookups
	dff1b809	2022-11-16T16:19:05		[buffer] Add .digest() and use
	654a2eaf	2022-11-16T16:09:04		[layout] Use buffer-digest for GSUB as well Combined with previous commit, this shows up to 12% speed up with Roboto and the en-words (ie. short strings) benchmark, about 5% for longer English tests, and no adverse effect on heavier fonts.
	15b6c325	2022-11-16T15:59:13		[layout] Use a buffer digest for GPOS to skip whole lookups
	3ce4b8f5	2022-10-08T19:10:07		5.3.0
	f4813e3b	2022-09-09T10:34:09		[instance] update collect_lookups/prune_features()/closure_features() with variations Some features will be substituted with variations, so we do not collect lookups from the original feature tables.
	b70032ed	2022-09-22T15:59:16		[layout] Fix typo in docs
	752060a4	2022-09-01T13:47:12		[layout] Document hb_ot_layout_lookup_get_optical_bound()
	71c6cba0	2022-09-01T13:43:19		[layout] Rename API: -hb_ot_layout_get_optical_bound() +hb_ot_layout_lookup_get_optical_bound()
	3892128a	2022-09-01T13:40:53		[layout] Add HB_NO_LAYOUT_RARELY_USED
	8e88653f	2022-09-01T13:39:26		[layout] Move code around
	4bf96211	2022-08-31T09:18:18		[optical-bounds] Optimize
	5d6f1a88	2022-08-31T08:31:24		[layout] Add hb_ot_layout_get_optical_bound()
	14eb3d37	2022-09-01T13:18:42		[layout] Improve annotations
	29d5c7f6	2022-08-31T15:03:09		docs: Improve docs for some apis Various functions take hb_tag_t arrays. Those arrays are expected to be 0-terminated. Document that.
	c96bfca3	2022-08-31T08:05:14		[get-alternates] Minor simplify
	41aa02ae	2022-08-29T11:17:22		[layout] Improve get_feature_tags documentation Fixes https://github.com/harfbuzz/harfbuzz/issues/3798
	371c8867	2022-08-23T22:28:58		Add few missing since tags
	5fdae684	2022-06-29T23:52:08		[reorg] Move GSUB.hh up one level and change GSUB namespace to GSUB_impl.
	98e90cc6	2022-06-30T08:43:57		[docs] Reduce warnings Use markdown syntax for inline code blocks instead of %true, %false, and %NULL.
	3fbf2dec	2022-06-28T23:55:32		[reorg] Move OT::Layout::GPOS_impl::GPOS to OT::Layout::GPOS.
	88ef3c5a	2022-06-28T23:26:49		[reorg] Change OT::Layout::GPOS to OT::Layout::GPOS_impl.
	74f45f7c	2022-06-24T23:14:30		[reorg] Move remaining GPOS lookup types to new directory.
	c13ff395	2022-06-08T06:25:23		[layout] Rename apply_recurse_func to specialization of dispatch_recurse_func
	42051fe1	2022-06-08T04:00:21		[layout] s/inplace/always_inplace/g
	b96622d1	2022-06-05T02:45:41		[layout] Use a cache for main input ClassDef of (Chain)ContextLookupFormat2 This commit adds a per-lookup caching infrastructure to GSUB/GPOS, and uses it to cache input ClassDef.get_class value for (Chain)ContextLookupFormat2. For fonts heavy on use of heave class-based2 context matching, this shows a good speedup. For NotoNastaliqUrdu for example, I observe 17% speedup. Unfortunately not many other lookups can use a cache like this :(. https://github.com/harfbuzz/harfbuzz/pull/3636
	15543f70	2022-06-04T10:55:50		[indic-like] Move allocation of syllable() buffer var to shapers that use it In indic, we don't have a pause location release the var.
	e6409d39	2022-06-05T06:57:37		Revert "[layout] Use a cache for main input ClassDef of (Chain)ContextLookups" This reverts commit 57d1c08739d0acd94b96da2f9d5dd6c0ff3b3722. Err. This was an accident.
	57d1c087	2022-06-05T02:45:41		[layout] Use a cache for main input ClassDef of (Chain)ContextLookups
	997d9cc4	2022-06-02T18:04:12		[map] Make unique_ptr hashable
	e9407a2b	2022-06-02T11:29:44		Use shared_ptr<hb_set_t> in one place See if valgrind is happy...
	3957d292	2022-05-29T07:30:58		[layout] Remove stale comment