a15ad778fe
[arabic-fallback] Generate PUA table from data
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Uses packtab for more compact arrays.
2022-06-19 12:29:10 -06:00
8c27c51c27
[arabic-pua] Rename symbols
2022-06-19 10:47:38 -06:00
7698962911
[arabic-fallback] Disable PUA shaping under HB_NO_OT_SHAPER_ARABIC_FALLBACK
2022-06-19 10:42:06 -06:00
55350377b0
[cmap/ft] Only map 0xF000 range if font_page is NONE
2022-06-19 10:42:06 -06:00
c3f590bb1e
[arabic] Support legacy PUA shaping
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Support legacy pre-OpenType Windows 3.1-era fonts, by remapping PUA code
points in cmap table and letting our fallback shaper build the GSUB
table.
Uniscribe applies also mset-like substitution, but our fallback mark
positioning gives better results, so this is not implemented.
2022-06-19 10:42:05 -06:00
5dc12d7d8d
[cmap] Rewrite set_for() slightly
2022-06-03 01:37:02 -06:00
9552955e08
Add an unlikely
2022-06-03 01:33:01 -06:00
a7a688616a
[cmap] Convert another map use to unique_ptr
2022-06-02 18:59:15 -06:00
f82ee17a75
[map] Pre-size map in constructor if we can
2022-05-18 12:19:49 -06:00
8f9f0c494b
[subset] Enforce cmap12 group ordering constraints in collect_mapping.
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Fixes fuzzer issue: https://oss-fuzz.com/testcase-detail/6365271012540416
2022-05-10 12:15:09 -06:00
f10ddb8dd8
[cmap] Use -1 as Unicode sentinel, not U+FFFF in Format12 serialize
2022-05-05 11:21:24 -06:00
8a19968c8b
[cmap] Use iterator bool operator
2022-05-05 11:17:23 -06:00
052812b6ba
Merge pull request #3561 from googlefonts/cmap_opt
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[subset] Further cmap subsetting speed optimizations
2022-05-04 15:38:30 -06:00
f0c04114bc
[subset] Embed unicode to gid list vector in subset plan.
2022-05-03 22:02:59 +00:00
3fff2e9182
[perf/benchmark-font] Cosmetic
2022-05-02 16:42:10 -06:00
307d2d8bb6
[cmap] Sprinkle some 'unlikely's
2022-05-02 16:30:22 -06:00
088133d939
[subset] cache cp to new gid list in subset plan.
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This avoids having to recompute the ordered list multiple times during cmap generation.
2022-05-02 21:29:16 +00:00
6922a2561f
[subset] Change serialize_rangeoffset_glyid back to using iterator.
2022-04-29 23:30:32 +00:00
c66fd50c26
[subset] in cmap4 serialization save cp to gid iter to memory.
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Iterator accesses are slow and it's iterated multiple times.
2022-04-29 23:18:53 +00:00
17b98563dc
[subset] In cmap4 serialization reduce unnessecary calls into the iterator.
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Gives ~20% speedup for large subsets.
2022-04-29 22:49:02 +00:00
5e241094bf
[subset] In unicodes cache cleanup if set insert fails.
2022-04-29 22:45:16 +00:00
a424a92ce5
[subset] s/void */intptr_t.
2022-04-29 22:14:03 +00:00
aad67f5629
[subset] cache results of collect_unicodes.
2022-04-29 22:05:34 +00:00
b4236b7de6
[subset] Optimize Cmap4 collect_unicodes.
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Use set add_range() instead of individual add() calls.
2022-04-29 19:22:00 +00:00
f41945e313
[cmap] In collect_unicodes() of format 12/13, limit to max Unicode
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Fixes fuzzer timeout:
https://oss-fuzz.com/testcase-detail/5062368881672192
2022-03-21 18:24:30 -06:00
ac1bb3e39e
[machinery] Move accelerators to constructor/destructor
2022-01-20 12:10:05 -07:00
e062376ef1
[machinery] Make accelerator lazy-loader call Xinit/Xfini
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Instead of init/fini. To isolate those functions. To be turned into
constructor/destructors, ideally one per commit (after some SFINAE
foo.)
2022-01-19 17:09:34 -07:00
8a69e00639
[meta] Use std::addressof() instead of hb_addressof()
2022-01-13 16:17:34 -07:00
1d9ef3a75a
[subset] Actually fix end_cp unitialized warning.
2021-12-01 11:53:10 -07:00
d8635dfe5a
[subset] Fix warning about uninitialized use of end_cp.
2021-12-01 11:17:46 -07:00
95329081c2
[subset] further optimize cmap4 packing.
2021-11-28 07:47:49 -07:00
d9660fd58a
[subset] Make cmap4 packing more optimal.
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The current CMAP4 implementation uses whatever the current codepoint ranges are and then encodes them as indivudal glyph ids or as a delta if possible. However, it's often possible to save bytes by splitting up existing ranges and encoding parts of them using deltas where the cost of splitting the range is less than encoding each glyph individual.
2021-11-26 13:21:50 -07:00
c852b86841
Rename HBGlyphID to HBGlyphID16
2021-09-19 16:30:12 -04:00
2bd911b8b4
[subset] handle cmap4 overflows.
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If a cmap4 subtable overflows during serialization drop it and the corresponding EncodingRecord. Don't drop the corresponding cmap12 table if it would have otherwise been removed.
2021-09-02 14:43:17 -06:00
b9a176e268
[subset] speedup cmap4 subsetting for large codepoint counts. ( #3178 )
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glyphIdArray generation implementation was O(n^2). Refactored to use a hashmap to reduce complexity. After the change subset time for a 22k codepoint subset went from 7s to 0.7s.
2021-08-29 10:33:12 -06:00
2c024dc3cb
[subset] prune redundant cmap12 subtables.
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If the post subset cmap12 table is equivalent to another cmap subtable don't include the 12 table in the final subset. Matches change https://github.com/fonttools/fonttools/pull/2146 from fontTools.
2021-08-04 17:36:24 -06:00
f0a1892ff9
[serialize] Remove unnecessary pointer indirection
2021-07-28 17:36:22 -06:00
9aa0ecef3f
[subset] de-duplicate the logic that finds unicodes corresponding to requested glyphs.
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Move the logic into subset planning and then re-use the results in cmap and OS2 subsetting. Removes depedency on cmap from os2.
2021-07-14 17:31:47 -07:00
092094f705
Use as_array() and range loops in a few places
2021-04-01 16:02:54 -06:00
4dba749d83
Add SortedArray{16,32}Of<>
2021-03-31 16:09:39 -06:00
ad28f973f3
Rename offset types to be explicit about their size
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Add Offset16To<>, Offset24To<>, and Offset32To<> for most use-cases.
2021-03-31 13:00:07 -06:00
b14475d2ae
[subset] further changes to serializer error handling.
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- Rename enum type and enum members.
- in_errors() now returns true for any error having been set. hb-subset now looks for offset overflow only errors to divert to repacker.
- Added INT_OVERFLOW and ARRAY_OVERFLOW enum values.
2021-03-18 10:51:26 -07:00
73ed59f7a6
[subset] store errors in the serializer as a flag set.
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Make check_assign/check_equal specify the type of error to set.
2021-03-17 15:58:34 -07:00
6d94194497
Use auto in range-for-loop more
2021-02-19 17:10:06 -07:00
18ab8029d5
[ENOMEM] check vector status in cmap subsetting.
2020-08-02 00:30:17 +04:30
5a7cc7fd8b
minor spacing tweak
2020-07-29 08:33:38 +04:30
d0e2addd43
minor
2020-07-18 22:16:02 +04:30
8e5bc535d1
[subset] call collect_mapping only when --gids option is used.
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collect_mapping is time consuming as it iterates all codepoints in all
cmap subtables, only trigger it when necessary
2020-07-16 11:25:53 -07:00
10d6605bbe
[subset] don't use << operator in collect_mapping
2020-05-15 11:04:59 -07:00
b2a965df5e
[subset] Add support for "--gids" option
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cmap subsetting now retains entries associated with any glyph ids explicitly requested
2020-05-11 15:28:58 -07:00
Khaled Hosny
Behdad Esfahbod
Garret Rieger
Ebrahim Byagowi
Qunxin Liu