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36 Commits

Author SHA1 Message Date
Frédéric Wang 32e542d6f0 try & fix build errors on the bot 2022-06-29 10:08:07 -06:00
Frédéric Wang 03d2376745 [math] Improve fuzzing coverage 
Extend testing to cover parts that are missing according to the recent
oss-fuzz-coverage report:
- Retriving all constants from MathConstants.
- Retrieving entries from MathKern, MathGlyphPartRecord and
  MathGlyphAssembly.
- Retrieving italic correction from MathGlyphAssembly.
- Choosing between horizontal/vertical offset in MathVariants.

https://storage.googleapis.com/oss-fuzz-coverage/harfbuzz/reports/20220627/linux/src/harfbuzz/src/hb-ot-math-table.hh.html
https://github.com/harfbuzz/harfbuzz/issues/3688
 2022-06-29 10:08:07 -06:00
Behdad Esfahbod 8b4f429000 [draw] Virtualize hb_font_draw_glyph() into hb_font_get_glyph_shape() 
To be implemented in hb-ft.
 2022-02-13 13:21:14 -06:00
Behdad Esfahbod e0ac6c587b Remove remaining traces of HB_EXPERIMENTAL_API 2022-02-13 13:21:14 -06:00
Alexis King 81754a5a96 [ot-math] Add hb_ot_math_get_glyph_kernings 
closes #3396
 2022-02-09 12:03:07 -06:00
Ebrahim Byagowi 0881611778 [fuzzer] Make some use for test_font API calls 
Making some use for result of some of the test_font calls to make
sure compilers in fuzzers aren't just optimizing the calls.
 2020-06-20 22:06:11 +04:30
Ebrahim Byagowi b4f34539c2 [fuzzer] test more of ot-layout APIs 2020-06-20 22:06:11 +04:30
Qunxin Liu 973c47f6c9 [subset] Move 2 experimental public api methods to be private methods in GSUB/GPOS. 
2 methods are: hb_ot_layout_closure_lookups and hb_ot_layout_closure_features
 2020-06-12 01:20:30 +04:30
Ebrahim Byagowi 759df46575 [style] Hide behind HB_EXPERIMENTAL_API compile flag 2020-06-04 20:33:39 +04:30
Ebrahim Byagowi 22037499b4 [style] New experimental API, hb_style_get_value 
Searches variation axes of a hb_font_t object for a specific axis first,
if not set, then tries to get default style values from different
tables of the font.
 2020-06-04 20:33:39 +04:30
Ebrahim Byagowi b32d169d22 [test] run aat APIs in shape fuzzer 2020-05-23 13:03:06 +04:30
Ebrahim Byagowi c68ab4b52b Fix _get_ligature_caret's oob read issue 
AAT::Lookup has no other way to detect whether it is returned from
a real and sanitized font data or from a null pool, this checks if
the table has been recognized valid by sanitizer by checking
table's major version which is zero if returned from a null pool and
non-zero if is from a sanitized font data, it is expected the other
calls of the table (unlikely to have more calls however) also do a
similar version check before calling the lookups used on the table.
 2020-05-21 06:56:09 +04:30
Ebrahim Byagowi 29c903223b Move hb_ot_layout_closure_{features,lookups} behind EXPERIMENTAL flag 2020-04-17 22:25:45 +04:30
Ebrahim Byagowi 755a77d660 Move outline draw API behind HB_EXPERIMENTAL_API directive 2020-03-13 08:25:53 +03:30
Ebrahim Byagowi 152000d9c7 [fuzz] Practice variations on font object 2020-02-25 21:16:57 +03:30
Ebrahim Byagowi c31762e9e8
[test] minor 
don't test first ten glyph, just testing cp just like other API calls is enough
 2020-02-05 23:12:37 +03:30
Ebrahim Byagowi ac81e94016 Rename hb_outline_decompose to hb_font_draw_glyph and hb_outline_decompose_funcs_t to hb_draw_funcs_t 2020-01-28 13:24:49 +03:30
Ebrahim Byagowi 981125aa2a Rename hb_ot_glyph_* to hb_outline_* 2020-01-27 23:43:54 +03:30
Ebrahim Byagowi 7633b7695e
Merge pull request #2016 from ebraminio/glyf 
Implement glyph outline path API
 2020-01-23 18:51:40 +03:30
Qunxin Liu e565d1f9bc [subset] subset lookup/feature/script lists for GSUB/GPOS 2020-01-15 14:04:33 -08:00
Ebrahim Byagowi ec1fba1388 [ot-glyph] make hb_ot_glyph_decompose_funcs_t struct opaque 2020-01-14 15:55:23 +03:30
Ebrahim Byagowi d7c3cb18ee [ot-glyph] minor on tests 2020-01-13 18:17:21 +03:30
Qunxin Liu 0b39c48064 [subset] closure lookups for GSUB/GPOS 2020-01-10 13:11:06 -08:00
Ebrahim Byagowi 42f4f1ea50 [ot-glyph] Add tests for hb_ot_glyph_decompose 2020-01-11 00:33:31 +03:30
Ebrahim Byagowi 06a1fcb3b4 [ot-glyphs] fix the tests 2020-01-10 23:12:30 +03:30
Ebrahim Byagowi fddf79fc37 [glyf] minor 2020-01-10 14:25:07 +03:30
Behdad Esfahbod e56d4ff43b Rename hb_ot_meta_get_entries() to +hb_ot_meta_get_entry_tags() 2019-08-13 21:02:47 -07:00
Ebrahim Byagowi 8c0a2e68ad
[fuzz] Add dummy call of the added APIs (#1886) 2019-07-30 13:16:15 +04:30
Behdad Esfahbod 42f4bd6b80 Minor warning fix again 2019-04-18 19:06:07 -04:00
Ebrahim Byagowi 8aaab78efc
Allow zero length ranges in sanitization (#1617) 
Fixes fvar table sanitization where there are no named instance
by allowing zero length ranges starting from Null() address.

Fixes #1607
 2019-03-14 16:49:42 -07:00
Chun-wei Fan 1e09add232 test/api: Fix building on pre-C99 compilers 
Ensure variables are declared at the top of the block.
 2018-12-12 01:32:01 +08:00
Behdad Esfahbod f48bb9a393 [var] Deprecated axis enumeration API and add new version 
New version has axis flags.

New API:
+hb_ot_var_axis_info_t
+hb_ot_var_find_axis_info()
+hb_ot_var_get_axis_infos()

Deprecated API:
-HB_OT_VAR_NO_AXIS_INDEX
-hb_ot_var_axis_t
-hb_ot_var_find_axis()
-hb_ot_var_get_axes()
 2018-11-20 20:46:14 -05:00
Behdad Esfahbod 6482fda519 [fuzzing] Fuzz glyph-id etc in test-ot-face 2018-11-05 15:03:18 -05:00
Behdad Esfahbod bce437cf0b [test] Call test-ot-face.c test from hb-shape-fuzzer 
Should increase coverage...
 2018-11-04 02:53:25 -05:00
Behdad Esfahbod 777c22425c [test] More funcs in test-ot-face 2018-11-04 02:40:20 -05:00
Behdad Esfahbod 9779e602ed [test] Add test for empty face 2018-11-03 20:50:56 -04:00