Behdad Esfahbod
a34a204bf7
[subset-plan] Simplify unicodes allocation
2023-01-11 12:27:19 -07:00
Behdad Esfahbod
bd4b040e7f
[shape-plan] Simplify glyphs_requested allocation
2023-01-11 11:23:48 -07:00
Behdad Esfahbod
023f595dec
[cmap] Speed up DefaultUVS::copy even more
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Another 14% on SourceHanSerifVF/10 benchmark.
2022-12-03 11:18:05 -07:00
Behdad Esfahbod
4ca6105108
[cmap] Remove double-min
2022-12-03 11:15:06 -07:00
Behdad Esfahbod
cd29147e30
[cmap] Minor cast
2022-12-03 10:41:42 -07:00
Behdad Esfahbod
4cdb5cc69b
[cmap] Minor change iterator
2022-12-03 10:40:24 -07:00
Behdad Esfahbod
a2d33779e1
Fix arm bot build
2022-12-03 09:49:00 -07:00
Behdad Esfahbod
dabbf13d40
[cmap] Speed up DefaultUVS::copy
2022-12-03 09:46:11 -07:00
Garret Rieger
2658370f00
[subset] make the cmap cache in accelerator const.
2022-11-29 22:04:10 -07:00
Garret Rieger
7a004a7ac2
[subset] Cache per subtable cmap unicode mappings.
2022-11-28 19:48:15 -07:00
Behdad Esfahbod
c503cf003e
[cmap] Store offset, not pointer, in cmap cache
2022-11-28 15:53:35 -07:00
Khaled Hosny
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
Behdad Esfahbod
8c27c51c27
[arabic-pua] Rename symbols
2022-06-19 10:47:38 -06:00
Behdad Esfahbod
7698962911
[arabic-fallback] Disable PUA shaping under HB_NO_OT_SHAPER_ARABIC_FALLBACK
2022-06-19 10:42:06 -06:00
Behdad Esfahbod
55350377b0
[cmap/ft] Only map 0xF000 range if font_page is NONE
2022-06-19 10:42:06 -06:00
Khaled Hosny
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
Behdad Esfahbod
5dc12d7d8d
[cmap] Rewrite set_for() slightly
2022-06-03 01:37:02 -06:00
Behdad Esfahbod
9552955e08
Add an unlikely
2022-06-03 01:33:01 -06:00
Behdad Esfahbod
a7a688616a
[cmap] Convert another map use to unique_ptr
2022-06-02 18:59:15 -06:00
Behdad Esfahbod
f82ee17a75
[map] Pre-size map in constructor if we can
2022-05-18 12:19:49 -06:00
Garret Rieger
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
Behdad Esfahbod
f10ddb8dd8
[cmap] Use -1 as Unicode sentinel, not U+FFFF in Format12 serialize
2022-05-05 11:21:24 -06:00
Behdad Esfahbod
8a19968c8b
[cmap] Use iterator bool operator
2022-05-05 11:17:23 -06:00
Behdad Esfahbod
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
Garret Rieger
f0c04114bc
[subset] Embed unicode to gid list vector in subset plan.
2022-05-03 22:02:59 +00:00
Behdad Esfahbod
3fff2e9182
[perf/benchmark-font] Cosmetic
2022-05-02 16:42:10 -06:00
Behdad Esfahbod
307d2d8bb6
[cmap] Sprinkle some 'unlikely's
2022-05-02 16:30:22 -06:00
Garret Rieger
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
Garret Rieger
6922a2561f
[subset] Change serialize_rangeoffset_glyid back to using iterator.
2022-04-29 23:30:32 +00:00
Garret Rieger
c66fd50c26
[subset] in cmap4 serialization save cp to gid iter to memory.
...
Iterator accesses are slow and it's iterated multiple times.
2022-04-29 23:18:53 +00:00
Garret Rieger
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
Garret Rieger
5e241094bf
[subset] In unicodes cache cleanup if set insert fails.
2022-04-29 22:45:16 +00:00
Garret Rieger
a424a92ce5
[subset] s/void */intptr_t.
2022-04-29 22:14:03 +00:00
Garret Rieger
aad67f5629
[subset] cache results of collect_unicodes.
2022-04-29 22:05:34 +00:00
Garret Rieger
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
Behdad Esfahbod
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
Behdad Esfahbod
ac1bb3e39e
[machinery] Move accelerators to constructor/destructor
2022-01-20 12:10:05 -07:00
Behdad Esfahbod
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
Behdad Esfahbod
8a69e00639
[meta] Use std::addressof() instead of hb_addressof()
2022-01-13 16:17:34 -07:00
Garret Rieger
1d9ef3a75a
[subset] Actually fix end_cp unitialized warning.
2021-12-01 11:53:10 -07:00
Garret Rieger
d8635dfe5a
[subset] Fix warning about uninitialized use of end_cp.
2021-12-01 11:17:46 -07:00
Garret Rieger
95329081c2
[subset] further optimize cmap4 packing.
2021-11-28 07:47:49 -07:00
Garret Rieger
d9660fd58a
[subset] Make cmap4 packing more optimal.
...
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
Behdad Esfahbod
c852b86841
Rename HBGlyphID to HBGlyphID16
2021-09-19 16:30:12 -04:00
Garret Rieger
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
Garret Rieger
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
Garret Rieger
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
Behdad Esfahbod
f0a1892ff9
[serialize] Remove unnecessary pointer indirection
2021-07-28 17:36:22 -06:00
Garret Rieger
9aa0ecef3f
[subset] de-duplicate the logic that finds unicodes corresponding to requested glyphs.
...
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
Behdad Esfahbod
092094f705
Use as_array() and range loops in a few places
2021-04-01 16:02:54 -06:00