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218 Commits

Author SHA1 Message Date
Qunxin Liu d7c012a08e [subset] GDEF Variation Store: step 2 
do subset based on variation indices collected in step 1
 2020-05-21 12:43:24 -07:00
Qunxin Liu 8200e48ffc [subset] GDEF Variation Store: step 1 
closure device variation indexes, create old->new variation idx mapping
and store them in subset-plan
 2020-05-21 12:43:24 -07:00
Behdad Esfahbod 89ad3c6cc5 Rename add_class to collect_class 2020-04-24 08:16:03 -07:00
Behdad Esfahbod 5cf53c06e6 Rename add_coverage to collect_coverage 2020-04-24 08:16:03 -07:00
Behdad Esfahbod 262eced2ad [subset] FeatureVariations subsetting is wrong 
Never drop FeatureVariationRecord for now.

Fixes https://github.com/harfbuzz/harfbuzz/issues/2334
 2020-04-21 01:23:07 +04:30
Ebrahim Byagowi 2dda6dd744 minor, tweak spacing 
turn 8 spaces to tab, add space before Null/Crap
 2020-04-20 16:18:29 +04:30
Qunxin Liu 0d5695983e [subset] fixes dangling object_t issue in FeatureVariationRecord 
Fixes https://crbug.com/oss-fuzz/21560
revert () does not clean up useless object_t. Adjust the order of
subsetting substitutions and conditions to avoid dangling object_t.
 2020-04-06 13:41:33 +04:30
Ebrahim Byagowi 57b7de032f [subset] Fail ClassDefFormat1 serialization if no space available 
Fixes https://crbug.com/oss-fuzz/21580
 2020-04-05 17:38:04 +04:30
Qunxin Liu c8cc1e378d fix issues in ClassDefFormat1 serialize: 
glyph ids in Iterator may be non-consecutive,
so the number in classValue might be larger than length of the Iterator
 2020-04-03 12:31:48 -07:00
Qunxin Liu e0c3979af1 typo fix 2020-04-02 12:05:57 +04:30
Garret Rieger 5d345d0cd1 [subset] Limit the number of lookup indices processed subsetting Feature. 
> Also, remove two unnessecary full iterations of the lookup index iterator during serialization of the index array. Fixes fuzzer found timeout.
 2020-04-01 11:13:05 +04:30
Garret Rieger 834a224a50
[subset] Put a limit on the number of lookup indices that can be visited during closures 
Fixes https://crbug.com/oss-fuzz/21025
 2020-03-12 13:32:36 +03:30
Ebrahim Byagowi 07acd1a042 [subset] Rename src_base args to base to match sanitize methods 
So it will become easier to follow that serialize methods signatures should
match with their sanitize methods counterparts.
 2020-03-08 23:39:26 +03:30
ariza 188a0a47c2 removed default base; replaced w/ bias if required 2020-03-08 22:59:43 +03:30
Ebrahim Byagowi d383603976
Limit OT::Lookup subtables (#2219) 
Fixes https://crbug.com/oss-fuzz/13943
 2020-03-02 22:41:08 +03:30
Garret Rieger 414529e45a [subset] Limit the number of feature indices processed during script subsetting. 2020-02-28 16:10:14 -08:00
Garret Rieger c66ee213b7 Limit the number of feature indices processed during feature collection. 2020-02-28 16:10:14 -08:00
Qunxin Liu fcd7f33bbb [subset] GDEF glyphClassDef subsetting support 
glyphClassDef uses the same ClassDef format. However, glyphClassDef table
uses predefined class values so we do not remap class values.
 2020-02-26 11:10:31 -08:00
Ebrahim Byagowi 5f23a76e99 [cff] Don't remove coords const qualification 
We should find some way to audit all the const removals, perhaps by
enabling -Wold-style-cast warning on the project and turning all the
implicit const removals to const_cast.
 2020-02-24 08:23:25 +03:30
Ebrahim Byagowi 4dc3db7344 Minor, fix warnings raised when built with -std=c++2a 
Follow up to c184180,

It was raising,

  src/hb-ot-layout-common.hh:1067:63: warning: implicit capture of 'this' with a capture default of '=' is deprecated [-Wdeprecated-this-capture]
      | hb_filter ([=] (const OffsetTo<TSubTable> &_) { return (this+_).intersects (glyphset, lookup_type); })
                                                                ^
  src/hb-ot-layout-common.hh:1067:19: note: add an explicit capture of 'this' to capture '*this' by reference
      | hb_filter ([=] (const OffsetTo<TSubTable> &_) { return (this+_).intersects (glyphset, lookup_type); })
                    ^
                     , this

and

  src/hb-ot-layout-common.hh:2626:38: warning: implicit capture of 'this' with a capture default of '=' is deprecated [-Wdeprecated-this-capture]
                  { r.collect_lookups (this, lookup_indexes); })
                                       ^
  src/hb-ot-layout-common.hh:2625:18: note: add an explicit capture of 'this' to capture '*this' by reference
      | hb_apply ([=] (const FeatureTableSubstitutionRecord& r)
                   ^
                    , this

and

  src/hb-ot-hdmx-table.hh:141:44: error: implicit capture of 'this' with a capture default of '=' is deprecated [-Werror,-Wdeprecated-this-capture]
                          return device_record->widthsZ.as_array (get_num_glyphs ()) [_];
                                                                  ^
  src/hb-ot-hdmx-table.hh:137:17: note: add an explicit capture of 'this' to capture '*this' by reference
              | hb_map ([=] (hb_codepoint_t _)
                         ^
                          , this
 2020-02-06 16:25:54 +03:30
ariza 72cbfb9059 remove empty lookup subtables 
Added a variant of subset_offset_array which takes an extra arg passed to serialize_subset for this impl.
Added a new api test "test-subset-gpos" for this.
 2020-01-21 16:53:19 -08:00
Qunxin Liu e565d1f9bc [subset] subset lookup/feature/script lists for GSUB/GPOS 2020-01-15 14:04:33 -08:00
Qunxin Liu 8ffc9add22 [subset] layout closure_features and store them in subset-plan 2020-01-14 07:24:48 +03:30
Ebrahim Byagowi dc03a993d0
Fix collect lookups logic of FeatureTableSubstitution (#2097) 
https://crbug.com/oss-fuzz/20036
 2020-01-12 14:21:29 +03:30
Ebrahim Byagowi a32ecc15ae
Fix collect lookups logic of FeatureVariationRecord 
As "Offset to a feature table substitution table, from beginning of the FeatureVariations table."
from https://docs.microsoft.com/en-us/typography/opentype/spec/chapter2 the record should
match its sanitize logic not the reverse way.

Fixes https://crbug.com/oss-fuzz/20021 and https://crbug.com/oss-fuzz/20022
 2020-01-11 15:37:24 +03:30
Qunxin Liu 0b39c48064 [subset] closure lookups for GSUB/GPOS 2020-01-10 13:11:06 -08:00
Ebrahim Byagowi 257a197ae7
Fail serialize when map has incorrect value 
fixes https://crbug.com/oss-fuzz/19956

am not super happy with the fix, guess we should do some check
before the memcpy anyway as @blueshade7 thinks also,
so let's have it or revert it when we have a better approach for the case.
 2020-01-09 22:55:45 +03:30
Ebrahim Byagowi ce114d6b27 minor, tweak spaces 2019-12-31 15:53:02 +03:30
Behdad Esfahbod 858b627984 [machinery] Remove CastR<>() 2019-12-10 13:18:32 -06:00
Behdad Esfahbod 9fb030585a Rename start/end to first/last in RangeRecord 
Because that's what they are.
 2019-12-09 17:46:08 -06:00
Qunxin Liu b33a0d628e fuzzer crash fix: Null-dereference WRITE 
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18363
 2019-10-22 01:01:08 +03:30
Qunxin Liu b66094ada0 [subset] GSUB Lookup Type 6: ChainContextSubst 2019-10-18 16:52:55 -07:00
Garret Rieger eff91bbb4b Add missing pop() for the failure case of script subsetting. 2019-10-18 15:10:30 -07:00
Garret Rieger 831daf4c76 Enforce HB_MAX_LANGSYS limit during layout subsetting. 2019-10-18 15:10:30 -07:00
Garret Rieger 9871461bce Enforce HB_MAX_SCRIPTS during subsetting of the script table. 2019-10-18 15:10:30 -07:00
Garret Rieger 36f18cecbb Add subset_offset_array helper function which simplifies subsetting offset arrays during stream operations. 2019-10-09 13:52:04 -07:00
Ebrahim Byagowi 0558413f27 Minor, tweak spaces 2019-10-01 13:50:11 +03:30
Behdad Esfahbod faace9437e
Merge pull request #1807 from harfbuzz/subset-varstore 
VariationStore serializer
 2019-09-30 13:34:05 -07:00
Qunxin Liu b0c3eb06b6 [subset] GPOS Lookup Type 3: CursivePos 2019-09-25 05:43:25 +09:00
Ebrahim Byagowi d512087e4d Rename GlyphID to HBGlyphID 
Avoid collision with macOS's ATSUnicodeTypes.h GlyphID
 2019-09-14 11:55:53 +04:30
Behdad Esfahbod 0e294c455e Rename VAR to HB_VAR_ARRAY 2019-09-06 16:54:27 -04:00
Behdad Esfahbod c379faed2b Fix a few struct size declarations 
Was wrong.  As excercised by defining VAR to other than 1 in hb.hh.
 2019-09-06 16:41:12 -04:00
qxliu76 0313ef86e3 bug fix in optimizing coverage table format (#1942) 
We are comparing number of shorts, NOT number of bytes.
 2019-08-29 14:09:05 -07:00
Ebrahim Byagowi a0b4ac4dce Turn 8 spaces to tab across the project 
According to the current code style of the project
 2019-08-27 02:40:41 +04:30
blueshade7 68ac767e43 added skip(), get_next_value() to inc_bimap to subset VarStore with retain-gids 2019-07-12 23:02:29 -07:00
blueshade7 634390ecaf added VariationStore serializer to be used by HVAR/VVAR subsetters 2019-07-01 18:52:57 -07:00
Behdad Esfahbod 6c725c7799 [config] Add HB_NO_LAYOUT_FEATURE_PARAMS 
Part of https://github.com/harfbuzz/harfbuzz/issues/1652
 2019-06-19 20:12:25 -07:00
Behdad Esfahbod c8f529a07e [config] Add HB_NO_HINTING, enabled by HB_TINY 
Disables HintingDevice tables and Anchors addressing contour points.

Part of https://github.com/harfbuzz/harfbuzz/issues/1652
 2019-06-19 19:33:15 -07:00
Behdad Esfahbod a849873124 [config] Add HB_NO_VAR to disable variations support, enabled by HB_TINY 
Part of https://github.com/harfbuzz/harfbuzz/issues/1652
 2019-06-19 19:26:22 -07:00
Behdad Esfahbod 1834cf86d4 [serialize] Pass offset to serialize_subset() 2019-05-31 14:39:32 -07:00
Behdad Esfahbod 9260441624 [serialize] Pass offset to serialize_copy() 2019-05-31 14:35:01 -07:00
Garret Rieger 962f95cf80 [subset] Switch SingleSubst to use iterators in serialize. 2019-05-15 18:37:32 -07:00
Behdad Esfahbod 889dc1eb06 [iter] Remove sort categorization 
See comments.
 2019-05-14 22:28:07 -07:00
Behdad Esfahbod 513762849a [iter] Track strictly-sorted iterators 
This make output of hb_enumerate() sorted regardless of input iterator.
 2019-05-13 15:36:14 -07:00
Behdad Esfahbod a487fc3324 Another extra semi-colon 2019-05-13 14:16:33 -07:00
Behdad Esfahbod 4d67743ffd [subset] Use more auto typing 2019-05-10 18:43:48 -07:00
Behdad Esfahbod a27a31b9ee Minor 2019-05-10 18:43:48 -07:00
Behdad Esfahbod 2ade008628 [serialize] More rewrite 2019-05-10 18:43:48 -07:00
Behdad Esfahbod 99ed6e29d8 [serialize] Fix a TODO 2019-05-10 18:43:48 -07:00
Behdad Esfahbod 25a5b287f2 Fix sanitize fail of extension sublookups 
Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=960331
 2019-05-10 16:03:20 -07:00
Behdad Esfahbod 9c0c3589f3 Minor 2019-05-10 13:56:50 -07:00
Behdad Esfahbod 5d4437fad0 Minor 2019-05-10 13:43:29 -07:00
Behdad Esfahbod ed972d5d73 [iter] Rewrite test functions 
Notably, add hb_is_source_of(,) and hb_is_sink_of(,) to replace most
uses of hb_is_iterator_of(,).
 2019-05-09 16:58:28 -07:00
Behdad Esfahbod 4c9e0c37a3 [serialize] LangSys subset->copy 2019-05-08 10:40:39 -07:00
Behdad Esfahbod af571dbffc [meta] Replace most hb_enable_if with hb_requires 
They do absolutely same thing.  hb_requires is to encode constraints,
whereas hb_enable_if is for more conditional enabling.
 2019-05-07 21:39:20 -07:00
Behdad Esfahbod 83e3eabd84 Whitespace 2019-05-07 20:58:43 -07:00
Behdad Esfahbod e33ad25222 [serialize] FeatureVariations subset->copy 2019-05-07 15:46:24 -07:00
Behdad Esfahbod 4c2fd05ca5 [iter] Implement range-based for loops 
Part of https://github.com/harfbuzz/harfbuzz/issues/1648
 2019-05-06 19:57:35 -07:00
Behdad Esfahbod 36bb24f7b4 [dispatch] Forward arguments in all dispatch multiplexers 2019-05-05 10:14:17 -07:00
Behdad Esfahbod 88a4147240 [serializer] Accept exact type in serialize_subset/copy() 2019-05-02 14:22:31 -07:00
Ebrahim Byagowi 92588782d7
Remove space between right angle brackets now that we have C++11 (#1689) 2019-04-30 13:05:10 -07:00
Behdad Esfahbod 699de689e9 Delete default assignment operator Offset<> 2019-04-15 16:00:20 -04:00
Behdad Esfahbod c68eb7002f Minor 2019-04-03 16:24:12 -07:00
Behdad Esfahbod 85adf4ad5c [GDEF] Don't assume glyphlist is sorted 
As was hit by the fuzzer.

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14032
 2019-04-03 16:07:36 -07:00
Jonathan Kew e5d6fe9782 Don't skip setting the .end field of the first range 
Fixes a bug in CoverageFormat2::serialize whereby the first range
was not serialized correctly if it consists of only a single glyph ID.
This broke shaping of U+0626 in the Arabic fallback shaper, because it
is not found in the coverage table of the 'init' and 'medi' lookups.

Also fix similar bug in ClassDefFormat2::serialize, noted during code
inspection (I haven't observed a case that was actually affected by
this, but it looks broken).

Fixes https://github.com/harfbuzz/harfbuzz/issues/1504
 2019-03-31 19:02:47 -07:00
Behdad Esfahbod b986c6a321 [C++11] Remove IntType::set() in favor of operator= 2019-03-29 20:21:21 -07:00
Behdad Esfahbod cbe2118c58 Merge branch 'master' into iter 2019-01-30 15:07:09 -08:00
Behdad Esfahbod 849a0f1758 [iter] Add hb_iter_with_fallback_t instead 2019-01-29 17:10:19 -08:00
Behdad Esfahbod 4d40ed9d1a [iter] Add hb_iter_with_mixin_t<> 2019-01-29 13:55:23 -08:00
Behdad Esfahbod 84a25d79c6 [iter] Rename 2019-01-29 13:39:19 -08:00
Garret Rieger 925be29223 Update hb-ot-vorg-table and hb-ot-layout-common to use the updated subset plan api. 2019-01-29 13:19:21 -08:00
Behdad Esfahbod d438e61042 [iter] Fix operator() impls 2019-01-28 16:34:04 -05:00
Behdad Esfahbod 090fe56dc6 Merge branch 'master' into iter 2019-01-25 16:06:52 +01:00
Behdad Esfahbod 5d4b0377b9 Convert unsigned enum class consts to static constexpr 
Part of https://github.com/harfbuzz/harfbuzz/issues/1553
 2019-01-22 12:17:26 +01:00
Behdad Esfahbod 93551669c5 Remove unused Coverage::iter_t::get_coverage() 2019-01-20 20:12:12 -05:00
Behdad Esfahbod a7de144df3 Implement uniform map interface 
Coverage, ClassDef, hb_set_t, and hb_map_t implement.
 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 7987095e64 [meta] Remove hb_enable_if_t 
It was only used for C++<11 which does not allow default parameters
in function templates.  Looks like we cannot support <11 anyway, so,
start cleaning up.
 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 7798e4fcc3 [iter] Change Coverage iterator to only return glyph-id 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 636786ecaf [iter] Rename __item_type__ to __item_t__ 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 6caf76f4a8 Tighten Coverage iteration 2019-01-20 20:12:12 -05:00
Behdad Esfahbod ff3a7ce1e7 [subset] Minor 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 74ca7b580c [OT] Implement operator[] for Coverage and ClassDef 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 445364d80a [iter] Rename hb_is_[sorted_]iterator() -> hb_is_[sorted_]iterator_of() 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 815cde9fa3 [iter] Use is_sorted_iterator 2019-01-20 20:12:12 -05:00
Behdad Esfahbod b5d6fe1a45 [iter] Remove hb_sorted_iter_t 
Not enforcing it using type hierarchy.
 2019-01-20 20:12:12 -05:00
Behdad Esfahbod a685bfe8fc Separate GlyphID from HBUINT16 
For stricter enforcement.
 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 40c24fd4a6 [iter] Port Coverage towards iter_t instead of array_t specifics 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 851fbb23ea [iter] Port Coverage::serialize to hb_is_iterator 2019-01-20 20:12:12 -05:00
Behdad Esfahbod bcb913efb4 Minor 2019-01-20 20:12:12 -05:00
Behdad Esfahbod 0828db8444 [iter] Rename 2019-01-20 20:12:12 -05:00