043eeb29a3
[subset-cff] Optimize encode_subrs
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Don't loop over all original subrs. Just walk over closure subrs.
2022-12-02 13:58:36 -07:00
0ad5977cd6
[subset-cff] Simplify hinting processing
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We already have drop_hints in the params.
2022-12-02 13:41:36 -07:00
c947652768
[subset-cff] Micro-optimize
2022-12-02 12:01:35 -07:00
a5616227ca
[subset-cff] Fix buffer size calculation
2022-12-02 12:01:35 -07:00
015af5a8e5
[subset-cff] Write a couple loops as range-based for
2022-12-02 12:01:35 -07:00
bfbbd4af25
[subset-cff] Copy str for call ops
2022-12-02 12:01:35 -07:00
c755b3884f
[subset-cff] Pre-alloc enough for check-less copy
2022-12-02 12:01:35 -07:00
062e59ae67
[subset-cff] Optimize vector allocation for preprocessed input
2022-12-02 12:01:35 -07:00
2644540a74
[subset-cff] Compact parsed strings if using accelerator
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Saves 32% on SourceHanSans/10000 benchmark!
Also, use memcmp now for writing out strings since now that our
ops are not super short, that's faster.
This makes cff-japanese test takes super long though; that needs
inspection.
2022-12-02 12:01:35 -07:00
32dd9810cf
[subset-cff1] Cache glyph-to-sid-map in the accelerator
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Benchmark Time CPU Time Old Time New CPU Old CPU New
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BM_subset/subset_codepoints/SourceHanSans-Regular_subset.otf/nohinting/10 -0.0841 -0.0843 0 0 0 0
BM_subset/subset_codepoints/SourceHanSans-Regular_subset.otf/nohinting/64 -0.1305 -0.1305 0 0 0 0
BM_subset/subset_codepoints/SourceHanSans-Regular_subset.otf/nohinting/512 -0.1398 -0.1401 1 1 1 1
BM_subset/subset_codepoints/SourceHanSans-Regular_subset.otf/nohinting/4096 +0.0382 +0.0380 9 9 9 9
BM_subset/subset_codepoints/SourceHanSans-Regular_subset.otf/nohinting/10000 +0.0213 +0.0211 11 11 11 11
2022-11-30 14:00:33 -07:00
7551a668e3
[subset] Make cff_accelerator const.
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This gives more confidence that it won't be accidentally modified by the subset operation using it.
2022-11-29 22:04:10 -07:00
3ea0f37c30
[subset-cff] Move an init to constructor
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The init was not called anyway.
2022-11-28 13:58:44 -07:00
6c92c3e0cf
[subset-cff] Remove unnecessary check
2022-11-28 13:54:24 -07:00
7fd300dd9a
[subset-cff] Use constructor for parsed_cs_op_t
2022-11-28 13:51:16 -07:00
bd37900e0d
[subset] use a reference to cached global/loca subrs.
...
Previously they were being copied in. Copying is no longer necessary now that hint dropping doesn't mutate the arrays.
2022-11-28 13:43:52 -07:00
ded9de9cd8
[cff] bsearch in fdselect
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Saves 8% in NotoSansCJK / 10000 subset benchmark.
2022-11-28 13:32:08 -07:00
0c33aba30c
[subset-cff] Rename drop flag to hinting flag
2022-11-28 12:28:13 -07:00
6f5b531986
[subset-cff] Make no-hinting use accelerator as well
2022-11-28 12:24:29 -07:00
f51a624e67
[subset-cff] Micro-optimize drop_hints_in_str
2022-11-27 14:54:39 -07:00
3860326688
[subset-cff] Write loop more idiomatic
2022-11-27 13:23:13 -07:00
3ff502d3ae
[subset-cff] Remove unnecessary initialization
2022-11-27 12:58:04 -07:00
6af4985bf9
[subset-cff] No need for bitflag here anymore
2022-11-26 18:20:20 -07:00
69ce606d14
[subset-cff] Immediately drop subr numbers instead of marking for skip
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Seems to work and saves ~2% time.
2022-11-26 18:18:35 -07:00
1cf4f3e083
[subset-cff] More comment
2022-11-26 18:15:28 -07:00
f68221ff43
[subset-cff] Add comment
2022-11-26 18:12:14 -07:00
048ab8a066
[subset-cff] Remove unused bits
2022-11-26 18:00:43 -07:00
37cbfc0c7e
[subset-cff] Remove unneeded member
2022-11-26 17:57:44 -07:00
46ab15137b
[subset-cff] Add has_calls to parsed charstrings
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Optimize closure based on it.
2022-11-26 17:49:21 -07:00
6d53074e63
[subset-cff] Drop another unused parameter
2022-11-26 17:23:09 -07:00
42615561b5
Optimize a couple array references
2022-11-26 17:13:20 -07:00
04d23b7ca8
[subset-cff] Micro-optimize collect_subr_refs_in_str
2022-11-26 17:08:00 -07:00
a5d35fd80a
[subset] use charstrings directly from accelerator cache if mutability isn't needed.
2022-11-25 16:50:55 -07:00
74acf52f33
[subset-cff] Micro-optimize copy_str more
2022-11-25 14:43:44 -07:00
d2f3cde7ef
[subset-cff] Micro-optimize copy_str
2022-11-25 14:38:30 -07:00
22990fca1d
Merge pull request #3894 from googlefonts/cff_accel
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[subset] Cache parsed char strings in CFF accelerator
2022-11-25 14:12:58 -07:00
8d5c899b0f
[subset] In cff accelerator hold reference to CFF table instead of the whole font.
2022-11-25 20:53:20 +00:00
75a99f28ab
[subset] destruct cff accelerator if present.
2022-11-25 20:24:05 +00:00
1d474194f0
[subset-cff] Micro-optimize encode_str
2022-11-25 13:21:35 -07:00
3c4a610b59
[subset-cff] Micro-optimize copy_str some more
2022-11-25 13:16:30 -07:00
535aadb309
[subset-cff] Micro-optimize collect_subr_refs_in_str more
2022-11-25 13:07:42 -07:00
00a9df3a43
[subset-cff] Micro-optimize collect_subr_refs_in_str
2022-11-25 13:05:05 -07:00
71c23c1c07
[subset] don't copy the entire global/loca subr lists from the accelerator.
...
Instead run a closure on the retained charstrings and copy only the referenced subrs. This significantly speeds up cases with small character sets.
2022-11-25 18:05:39 +00:00
4ff09274a8
[subset] In CFF accelerator keep a reference to original face.
...
The charstring objects reference memory from the original face so we need to maintain a reference to prevent it from being destroyed.
2022-11-24 22:47:29 +00:00
a3afa61ce8
[subset] use cached parsed char strings if available.
2022-11-24 21:14:00 +00:00
47c125845c
[subset] Cache parsed charstrings in the cff accelerator.
2022-11-24 21:14:00 +00:00
48b6837074
[subset] add a CFF specific accelerator object.
...
This allows CFF specific accelerator structures to be isolated to the CFF code.
2022-11-24 21:13:59 +00:00
d77f346d1a
[subset-cff] Minor rename
2022-11-24 14:02:46 -07:00
29a0fa089a
[subset-cff] Micro-optimize
2022-11-24 14:00:59 -07:00
0bf7d9eb4d
[subset-cff] Micro-optimize encode_byte
2022-11-23 13:20:48 -07:00
a23f820427
[subset-cff] Micro-optimize array access
2022-11-23 13:20:48 -07:00
Behdad Esfahbod
Garret Rieger