Commit Graph

14014 Commits

Author SHA1 Message Date
Garret Rieger bf28b84ae8 [repacker] cleanup unused base_array_id. 2022-08-18 01:51:37 +00:00
Garret Rieger 31976bfb50 [repacker] cleanup unused base_array_links. 2022-08-18 01:50:35 +00:00
Garret Rieger 6f5c52b604 [repacker] optimize AnchorMatrix::clone.
Previous runtime is O(n^2) reduced to O(n).
2022-08-18 01:48:10 +00:00
Garret Rieger 29e3b2467e [repacker] optimzie remove_real_links as it's a hot method. 2022-08-18 01:19:54 +00:00
Garret Rieger 46b5dbd7ce [repacker] optimize index_for_offset. 2022-08-18 01:18:16 +00:00
Garret Rieger 52303638b9 [repacker] correct size calculation for MarkBasePosFormat1. 2022-08-18 01:10:42 +00:00
Garret Rieger ac1a853abc [repacker] implement sanitize methods for MarkBasePos. 2022-08-18 00:55:47 +00:00
Garret Rieger a3ed9f9099 [repacker] fix graph comparison, and mark base pos generation for the tests. 2022-08-17 23:39:11 +00:00
Garret Rieger 19c51ed35c [repacker] Get mark base pos test working. 2022-08-17 19:15:55 +00:00
Garret Rieger b46ced9562 [repacker] correct MarkArray size calculation. 2022-08-17 17:51:29 +00:00
Garret Rieger 36c76c27c6 [repacker] when clearing links in MarkArray, also clear parents of the children. 2022-08-17 17:30:21 +00:00
Garret Rieger 8c3db8bdfd [repacker] more progress on MarkBasePos tests. 2022-08-17 00:36:23 +00:00
Behdad Esfahbod 172cc82032 [BUILD] Minor reword (and reformat)
Fixes https://github.com/harfbuzz/harfbuzz/issues/3784
2022-08-16 13:21:02 -06:00
Garret Rieger 1405f96b6f [repacker] change run_resolve_overflow_test to check for graph equivalence.
Replaces a check for an exact match on the final serialized bytes. The previous check enforced equivalent topological sorting between result and expected, but we only really care that the graph's are equivalent and don't overflow.
2022-08-15 23:48:00 +00:00
Garret Rieger 07fd0528c0 [repacker] add graph equality check.
Does not compare topological sorting, but looks for equivalence of the two graphs.
2022-08-15 23:16:51 +00:00
Garret Rieger 5cf2a25a60 [repacker] Expose on internal method in the repacker that allows the caller to pass in/out a graph.
Will be used in testing so we can compare graphs instead of packed result.
2022-08-15 22:49:24 +00:00
Garret Rieger c414ef292b [repacker] Implement MarkArray::shrink. 2022-08-15 22:10:37 +00:00
Behdad Esfahbod 4ab7e579cb Make HB_BORING_EXPANSION opt-in instead of opt-out
Fixes https://github.com/harfbuzz/harfbuzz/issues/3757
2022-08-12 12:23:48 -06:00
Garret Rieger f8b5520556 [repacker] Add AnchorMatrix::shrink. 2022-08-11 23:09:36 +00:00
Garret Rieger bbe14417ad [repacker] Begin implementing MarkBasePosFormat1::shrink. 2022-08-11 22:53:30 +00:00
Garret Rieger c9ddf0815a [repacker] Implement AnchorMatrix::clone. 2022-08-11 22:34:59 +00:00
Garret Rieger 5ea3c0be8f [repacker] Implement MarkArray::clone. 2022-08-11 22:21:28 +00:00
Garret Rieger 0083fd109c [repacker] add as_table() helper to graph. 2022-08-11 22:09:46 +00:00
Garret Rieger b00eb77682 [repack] Add add_link helper to graph. 2022-08-11 20:33:21 +00:00
Garret Rieger 1acd2a8bf9 [repacker] implement MarkBasePosFormat1::clone_range. 2022-08-11 20:22:31 +00:00
Garret Rieger cf817f3d99 [repacker] Hook up MarkBasePos splitting. 2022-08-11 19:26:59 +00:00
Garret Rieger 4418beac93 [repacker] start implmenting MarkBasePos splitting. 2022-08-11 19:08:04 +00:00
Behdad Esfahbod f4f7d691af
Merge pull request #3779 from harfbuzz/split_pair_pos_2
[repacker] Add PairPosFormat2 table splitting in the repacker.
2022-08-09 22:23:23 -06:00
Garret Rieger fa46dbca9d [repacker] Make actuate_subtable_split internal. 2022-08-08 17:07:14 +00:00
Garret Rieger fe15f2559f [repacker] use position instead of memory address as key in device_tables map. 2022-08-08 16:57:28 +00:00
Garret Rieger 163fbf0be1 [repacker] Check for nullptr's before sanitizing. 2022-08-05 23:37:11 +00:00
Garret Rieger 13253233f7 [repacker] in PairPosFormat2 splitting use the max estimated coverage/classdef size for sizing serialization buffers. 2022-08-05 23:15:10 +00:00
Garret Rieger dde0a2b071 [repacker] track estimated coverage size during PairPosFormat1 split point analysis. 2022-08-05 22:30:37 +00:00
Garret Rieger b37e8bef0e [repacker] count size of the current class at the split point in the next segment. 2022-08-05 22:16:20 +00:00
Qunxin Liu 7fde6ab025 fuzzer fix: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=49790 2022-08-05 15:10:31 -06:00
Behdad Esfahbod a4e0fd1685 [MultipleSubst] Rewrite serialize signature as single iterator 2022-08-05 15:05:51 -06:00
Behdad Esfahbod 65d28bc5a7 [MultipleSubst] Rewrite serialize() in terms of iterators
Unused still, and hence untested
2022-08-05 14:56:07 -06:00
Behdad Esfahbod b57ea3b053 Revert "[iter] Use && in uses of is_source_of"
This reverts commit ccbba667a9.
2022-08-05 14:29:27 -06:00
Garret Rieger 0e48a65d32 [repacker] estimate size of classDef1 and coverage during PairPos2 split point analysis. 2022-08-05 20:19:11 +00:00
Garret Rieger 2264df6da3 [repacker] add utility that can calculate the size of Coverage+ClassDef via incremental class inclusion. 2022-08-05 18:33:03 +00:00
Behdad Esfahbod ccbba667a9 [iter] Use && in uses of is_source_of 2022-08-05 11:51:51 -06:00
Behdad Esfahbod 8fb7cc1c63 [iter] Use && in is_sink_of uses 2022-08-05 11:49:29 -06:00
Garret Rieger 5d824c09c0 [repacker] during table splits don't mutate shared coverage/classdef in place.
If other subtables are sharing coverage with a subtable being split we have to duplicate the coverage/classdef tables before they are modified during the shrink operation.
2022-08-05 01:37:14 +00:00
Garret Rieger e1ab355056 [repacker] correct lookup link insertion. 2022-08-05 01:25:16 +00:00
Garret Rieger a733a9afa5 [repacker] insert new subtables immediately after the subtable they split from in the lookup. 2022-08-05 00:32:47 +00:00
Garret Rieger 506547c958 [repacker] Use hb_pair_t constructor instead of hb_pair ().
hb_pair was causing corrupted gid values.
2022-08-04 21:36:21 +00:00
Garret Rieger fdd1952c75 [repacker] PairPosFormat2 splitting - fix coverage and classdef splitting.
The old code was splitting based on coverage index, but should have been splitting on class value.
2022-08-04 19:21:16 +00:00
Behdad Esfahbod c67c1b745b VarStore: simplify again 2022-08-04 11:42:22 -06:00
Behdad Esfahbod 914542bd18 Whitespace 2022-08-04 11:40:54 -06:00
Behdad Esfahbod d7adc55e18 [ot-font] Allow 24bit glyphs in advance cache 2022-08-04 11:40:54 -06:00