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7580 Commits

Author SHA1 Message Date
Behdad Esfahbod f5f4ca7871 [kern/kerx] Enable crossStream kerning in vertical 
CoreText doesn't, but no reason we shouldn't do.
 2018-11-07 11:21:09 -05:00
Behdad Esfahbod d5c88af4a2 [kerx] More towards sharing Format1 2018-11-07 11:20:14 -05:00
Behdad Esfahbod b693fd0dc6 [morx] Simplify 2018-11-07 11:10:24 -05:00
Behdad Esfahbod ce3451dc2a [kerx] Towards sharing Format1 2018-11-07 11:02:04 -05:00
Behdad Esfahbod e890753ebb [morx] Minor 2018-11-07 10:59:53 -05:00
Behdad Esfahbod 5b17853547 [kern/kerx] Share Format0 2018-11-07 10:45:25 -05:00
Behdad Esfahbod c97dde5d55 [kern/kerx] Towards merge more 2018-11-07 10:39:39 -05:00
Behdad Esfahbod 540ccc38b0 [kern/kerx] More towards sharing 2018-11-07 10:33:46 -05:00
Behdad Esfahbod d0f8f4c200 [kern] Move kern machine to hb-kern.hh 2018-11-07 10:25:25 -05:00
Behdad Esfahbod a6acff252c [kerx] Towards sharing subtables with kern 2018-11-07 10:19:57 -05:00
Behdad Esfahbod befac337ca [kern] Remove Override business 
Not used in any fonts.  Not well-specified when mixing kerning with
Cross-Stream positioning.
 2018-11-07 09:53:50 -05:00
Behdad Esfahbod 9d5027696e [post] Return true on truncation 
Client can check that buffer was completely filled out and reallocate.
 2018-11-07 09:16:53 -05:00
Behdad Esfahbod 7d91f07edf [post] Protect against huge empty tables 2018-11-07 09:14:42 -05:00
Behdad Esfahbod 5ed816ab59 [post] Minor 2018-11-07 09:13:51 -05:00
Behdad Esfahbod 64f0becd89 [post] Fix bound checking 2018-11-07 09:10:55 -05:00
HinTak 7ec694ddf2 Use non-GRID-fitted values for metrics (#1363) 
* Use non-GRID-fitted values for metrics

See freetype/src/base/ftobjs.c:ft_recompute_scaled_metrics() and
the usage of GRID_FIT_METRICS inside.

Fixes https://github.com/behdad/harfbuzz/issues/1262

* Update hb-ft.cc
 2018-11-07 08:19:36 -05:00
Behdad Esfahbod 59e04e4231 [kern/kerx] Fix cursive joining 
Tested with Waseem TTC:

$ hb-shape Waseem.ttc جحخج
[F1Jeem_R2=3@0,180+479|M1Khah_L2_R2=2@0,682+403|M1Hah_L2_R2=1@0,1184+403|I1Jeem_L2=0@0,1184+744]
 2018-11-07 00:27:20 -05:00
Behdad Esfahbod 8d0f797139 [kern/kerx] Fix "reset" magic value 2018-11-07 00:05:10 -05:00
Behdad Esfahbod 0123976a0c [kerx] Adjust CrossStream kern to match 'kern' table 2018-11-06 21:46:14 -05:00
Behdad Esfahbod 80a33b9ac3 [kern] More tweaks 
Solves a mystery or two.  I'm fairly confident this is what CoreText does now.
 2018-11-06 21:46:14 -05:00
Behdad Esfahbod 564e8ac046 [kern] Adjust some more 
Getting closer.  So many open questions still...
 2018-11-06 21:46:14 -05:00
Behdad Esfahbod 4d003b8503 [kern] Add TODO 2018-11-06 21:46:14 -05:00
Behdad Esfahbod 9810f0b80e [kern] Minor 2018-11-06 21:46:14 -05:00
Behdad Esfahbod 9c04b60583 [kern] In Format1, adjust how kerning is done 
In a series of kerns in one action, kern all but last glyph forward,
and the last one backward.  Seems to better match what CoreText is doing.

Test cases, with GeezaPro Arabic:

$ ./hb-shape GeezaPro_10_10.ttc -u U+0631,U+0628
[u0628.beh=1+1415|u0631.reh=0@-202,0+700]

$ ./hb-shape GeezaPro_10_10.ttc -u U+0628,U+064F
[u064f.damma=0@0,-250+-250|u0628.beh=0@250,0+1665]

In a later change, I'll make kern machine avoid producing negative kerns.
 2018-11-06 21:46:14 -05:00
Behdad Esfahbod e8c4772463 [kern] XXX Negate CrossKerning sign 
Not sure why, but seems to better match GeezaPro Arabic w CoreText.

Quite possibly I'm doing something very wrong...
 2018-11-06 21:46:14 -05:00
Behdad Esfahbod 01bf43ac01 [kern] Implement CrossStream kerning 2018-11-06 17:59:31 -05:00
Behdad Esfahbod b11830c09e [kern] Improve Format 2 
Still disabled.
 2018-11-06 17:59:31 -05:00
Behdad Esfahbod c0383c6bb7 Minor 2018-11-06 17:59:31 -05:00
Behdad Esfahbod 10e6f708f3 [kern] Minor 2018-11-06 17:16:23 -05:00
Behdad Esfahbod 164eedd918 [kern] Minor 2018-11-06 17:16:23 -05:00
Behdad Esfahbod 220a5991ba [kern/kerx] Fix trace numbering 2018-11-06 17:16:23 -05:00
Behdad Esfahbod bfafe208da [kern] Switch to dispatch 2018-11-06 12:13:20 -05:00
Behdad Esfahbod 213fa3bf71 [kern] Refactor to include header in each subtable type 2018-11-06 12:13:20 -05:00
Behdad Esfahbod b0da2cd0b9 [kern] Some more 2018-11-06 12:13:20 -05:00
Behdad Esfahbod 75b00b51c8 [kern] Renames 2018-11-06 12:13:20 -05:00
Khaled Hosny 5c3ccbc634 Another missing backlash 
Did this ever work?
 2018-11-06 18:10:56 +02:00
Khaled Hosny d29602b962 Add missing backslash 2018-11-06 18:07:47 +02:00
Behdad Esfahbod 9bddfde25d [util] Fix up previous commit 2018-11-06 11:03:34 -05:00
Behdad Esfahbod 3ec2e4fa7b [util] Don't terminate string after a a 0 in -u 
Fixes https://github.com/harfbuzz/harfbuzz/issues/1361
 2018-11-06 10:49:19 -05:00
Behdad Esfahbod 8790b2740a [fuzzing] Fix test 2018-11-06 10:24:54 -05:00
Behdad Esfahbod 3af0a7edd0 [fuzzing] Add make check-valgrind 2018-11-06 10:20:57 -05:00
Behdad Esfahbod b062378ce6 [test] Minor 2018-11-06 10:20:36 -05:00
Behdad Esfahbod 37f421c951 Minor 2018-11-06 10:03:38 -05:00
Ebrahim Byagowi b6112e5ea4
[test] Fix -Weverything bot complain 2018-11-06 11:42:47 +03:30
Ebrahim Byagowi a49df419f0
[test] Test hb_ot_name_{list_names,get_utf8} on test-ot-name 2018-11-06 11:26:30 +03:30
Ebrahim Byagowi 9139cc23ea
Fix link issue of some of the bots 
e.g. https://circleci.com/gh/harfbuzz/harfbuzz/52410
 2018-11-06 11:17:14 +03:30
Ebrahim Byagowi 98b37f0c10
[mort] Fix table detection logic 
mort really needs some initial tests at least.
 2018-11-06 09:16:28 +03:30
Behdad Esfahbod fa3ebf845f Simplify some more 2018-11-05 23:34:07 -05:00
Behdad Esfahbod 61f52231f4 [math] Shorten names a bit 2018-11-05 23:28:52 -05:00
Behdad Esfahbod 737efbe655 [ot-layout] Simplify GSUB/GPOS access 
This concludes simplifying table access to face->table.XXXX.
 2018-11-05 23:26:29 -05:00