Commit Graph

55 Commits

Author SHA1 Message Date
Behdad Esfahbod 95b04f7409 [buffer] Remove unnecessary have_separate_output() 2021-07-12 17:36:38 -06:00
Behdad Esfahbod 3e266e5f64 [buffer] Update comments 2021-07-12 17:36:36 -06:00
Behdad Esfahbod 3807061d63 [ot-layout] Don't remove_output() before reverse substitution
No need anymore, because of new swap_buffers() semantics.

Just assert instead.
2021-07-12 17:36:22 -06:00
Behdad Esfahbod 93e6a9bc4e Revert "Remove unneeded buffer clear_output / remove_output calls"
This reverts commit 06175b7143.

One of the sanitizers is failing. Pushing again as PR to debug.
I have suspicions.
2021-06-15 15:38:49 -06:00
Behdad Esfahbod 06175b7143 Remove unneeded buffer clear_output / remove_output calls
Made sure clear_output is always paired with swap_buffers.
Trying to see if we can move towards RAII-like buffer iterators
instead of the buffer keeping an iterator internally.
2021-06-15 14:33:27 -06:00
Behdad Esfahbod c61ce962cf [buffer] In hb_buffer_get_positions(), return NULL if inside message callback
As discussed in https://github.com/harfbuzz/harfbuzz/issues/2468#issuecomment-645666066

Part of fixing https://github.com/harfbuzz/harfbuzz/issues/2468
2021-06-10 17:36:38 -06:00
Behdad Esfahbod 9e397ff2fb [buffer] Fix order of HB_INTERNAL HB_DISCARD
Sucks that has to be specified in this order. But that is what it is for now.

Was only exhibiting problem on C++>=17 since that's when the [[nodiscard]]
was introduced.
2021-03-15 16:51:17 -06:00
Behdad Esfahbod 8450f43ae1 [buffer] HB_NODISCARD next_glyph() 2021-03-15 16:01:35 -06:00
Behdad Esfahbod f4bc7673db [buffer] Implement copy_glyph() in terms of output_info() 2021-03-15 16:01:35 -06:00
Behdad Esfahbod f73982a699 [buffer] Implement replace_glyph() in terms of replace_glyphs(1,1)
I get exact same binary size with this, suggesting that compiler is
optimizing these as needed.
2021-03-15 16:01:35 -06:00
Behdad Esfahbod 862f913489 [buffer] Implement output_glyph() in terms of replace_glyphs(0,1)
To my surprise, saves ~20kb in my build (non-size-optimized) build.
The output_glyph() method is never used in the fast paths, so doesn't
matter if is not fully optimized for the special case it is.
2021-03-15 16:01:35 -06:00
Behdad Esfahbod 34a1204f10 [buffer] HB_NODISCARD output_glyph()
Also, generalize and use replace_glyphs() in morx where output_glyph() was used
in a loop.
2021-03-15 16:01:35 -06:00
Behdad Esfahbod e6be9eb4fb [buffer] HB_NODISCARD output_info() 2021-03-15 14:12:10 -06:00
Behdad Esfahbod 2a0dbb3ee5 [buffer] HB_NODISCARD copy_glyph() 2021-03-15 14:10:39 -06:00
Behdad Esfahbod b05e5d9a79 [buffer] HB_NODISCARD next_glyphs() 2021-03-15 14:08:08 -06:00
Behdad Esfahbod 4ae8aab83b [buffer] HB_NODISCARD has_separate_output() 2021-03-15 14:01:52 -06:00
Behdad Esfahbod 8d3701f507 [buffer] HB_NODISCARD in_error() 2021-03-15 14:01:32 -06:00
Behdad Esfahbod 41e05479b6 [buffer] HB_NODISCARD shift_forward() 2021-03-15 14:00:00 -06:00
Behdad Esfahbod 83b3784d1d [buffer] HB_NODISCARD make_room_for() 2021-03-15 13:59:14 -06:00
Behdad Esfahbod c355508a89 [buffer] HB_NODISCARD ensure_glyphs() / ensure_unicode() 2021-03-15 13:58:30 -06:00
Behdad Esfahbod bc22305b6a [buffer] HB_NODISCARD ensure_inplace() 2021-03-15 13:57:18 -06:00
Behdad Esfahbod cac6c86d2f [buffer] HB_NODISCARD move_to() 2021-03-15 13:56:46 -06:00
Behdad Esfahbod 05d2d37f9a [buffer] HB_NODISCARD ensure() 2021-03-15 13:56:46 -06:00
Behdad Esfahbod d8028a0762 [buffer] HB_NODISCARD enlarge() 2021-03-15 13:34:36 -06:00
Behdad Esfahbod 3f1998a065 [buffer] HB_NODISCARD replace_glyph() 2021-03-15 13:33:44 -06:00
Behdad Esfahbod 607979d12f [buffer] HB_NODISCARD replace_glyphs() 2021-03-15 13:23:48 -06:00
Behdad Esfahbod 906c9928bb [buffer] Return success status from buffer ops that can fail
Previous error-handling philosophy was that user doesn't need to
immediately know whether operation failed. But as can be seen after
we added malloc-failing fuzzing, there's just so many places in the
code that a failure of these operations needs to be mitigated before
further operations. So I'm moving towards returning success here,
and possibly making it nodiscard.
2021-03-15 13:13:45 -06:00
Behdad Esfahbod 77e704d1db [buffer] Add assert_unicode()/assert_glyphs() and use internally 2020-10-15 02:02:04 -06:00
Behdad Esfahbod 5ef0613909 [buffer] Add ensure_glyphs()/ensure_unicode()
Use in deserialize. To be used more.
2020-10-15 01:54:28 -06:00
Behdad Esfahbod 1c05f6789b [buffer] Increase work limits
Our previous limits of 64 per input character was already hit
by David Corbett's under-development Duployan font.

Increase work limits by factor of 16, and number of glyphs by factor of 2.

Fixes https://github.com/harfbuzz/harfbuzz/issues/2707
2020-10-11 12:28:25 -06:00
Ebrahim Byagowi d0e2addd43 minor 2020-07-18 22:16:02 +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
Evgeniy Reizner cd7b46ca15 Use correct return type in _unsafe_to_break_find_min_cluster. 2020-01-26 23:59:36 +03:30
Behdad Esfahbod 029775bcbd [buffer] Minor; improve HB_NO_BUFFER_MESSAGE 2019-10-17 10:00:40 -07:00
Ebrahim Byagowi 0558413f27 Minor, tweak spaces 2019-10-01 13:50:11 +03:30
Behdad Esfahbod 7f3b409e85 Fix build with -O0
message_impl was not defined.  That causes trouble if compiler didn't
optimize the unreachable call out...
2019-06-20 14:24:43 -07:00
Behdad Esfahbod eb9798ef73 [config] Dont' compile buffer message API if HB_NO_BUFFER_MESSAGE
Part of https://github.com/harfbuzz/harfbuzz/issues/1652
2019-06-18 13:29:55 -07:00
Behdad Esfahbod c7439d4e3a Slightly massage buffer-messaging commit
Saves a few bytes.
2019-06-05 12:15:09 -07:00
Behdad Esfahbod 41248cce0e Remove MIN/MAX in favor of hb_min/hb_max 2019-05-07 20:54:31 -07:00
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 271cb7c1c0 Make some enum constants unsigned 2019-01-22 12:17:26 +01:00
Behdad Esfahbod 9aebfb4182 [serialize] Streamline error propagation 2018-12-18 13:22:17 -05:00
Ebrahim Byagowi e412008599 Remove redundant void from C++ sources (#1486) 2018-12-17 13:01:01 -05:00
Ebrahim Byagowi b2ebaa9afa Remove redundant 'inline' from methods (#1483) 2018-12-16 14:08:10 -05:00
Behdad Esfahbod 35d410f2ba Remove ASSERT_POD
Newer compilers / language allows structs with constructor in union.
So, this was not actually testing anything.  Indeed, the recent
change in DISALLOW_COPY *is* making some of our types non-POD.
That broke some bots.

Just remove this since it wasn't doing much, and I'd rather have
DISALLOW_COPY.
2018-10-29 14:45:44 -07:00
Behdad Esfahbod 60c1397673 [buffer] Fix output_glyph at end of buffer
Part of https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10955
2018-10-14 19:38:14 -07:00
Behdad Esfahbod e883f52732 Call get_nominal_glyphs() for runs of simple clusters at a time
Even without FT or OT font funcs implementing get_nominal_glyphs(), there's measurable
speedup.
2018-10-09 14:50:57 -04:00
Behdad Esfahbod 71b65eb27d Add API for setting invisible-codepoint
Fixes https://github.com/harfbuzz/harfbuzz/issues/1216

New API:
hb_buffer_set_invisible_codepoint()
hb_buffer_get_invisible_codepoint()

hb-shape / hb-view --invisible-codepoint
2018-10-07 18:43:26 +02:00
Behdad Esfahbod 2a6f15213e [buffer] Inline some more 2018-10-03 20:19:42 +02:00
Behdad Esfahbod c36f3f5bef [arabic] Use manual-zwj instead of flipping joiners 2018-10-02 14:36:47 +02:00