9c9ad214af
[fuzzer] Add README
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https://github.com/behdad/harfbuzz/issues/139#issuecomment-154202645
9 years ago
6e6f82b6f3
Implement SYRIAC ABBREVIATION MARK with 'stch' feature
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The feature is enabled for any character in the Arabic shaper.
We should experiment with using it for Arabic subtending marks.
Though, that has a directionality problem as well, since those
are used with digits...
Fixes https://github.com/behdad/harfbuzz/issues/141
9 years ago
c743ec5886
[ft] Fix extents with negative scales
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Fixes https://github.com/behdad/harfbuzz/issues/162
9 years ago
73fec3992a
Reserve a few scratch-flags bits for complex shapers
9 years ago
136863371c
Add new shaper method postprocess_glyphs()
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Unused currently. To be used for Syriac stretch implementation.
https://github.com/behdad/harfbuzz/issues/141
9 years ago
6c0ebd02c9
[util] If font has color, generate PNG with color
9 years ago
e95eb23a4e
Don't try zeroing marks by GDEF if there are no non-ASCII
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This one is a hack, but should be ok.
9 years ago
7fa54ed75a
Don't try zeroing mark attachments by Unicode if there's no non-ASCII
9 years ago
550bd14d2b
Actually commit changes for previous commit
9 years ago
ff31b3c1b8
Skip GPOS cursive / attachment adjustmnent if none happened
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I'm starting to really like how free these new scratch_flags are.
9 years ago
0f407325f6
Minor
9 years ago
497a6c2071
Skip forming clusters if text is all ASCII
9 years ago
28de104f15
Move variable-sized struct member to end
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Hopefully makes clang build happy
9 years ago
5bc28b5f68
Optimize positioning for when h_origin is nil
9 years ago
762770c964
Add font->has_...() to check for individual nil font funcs
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Hopefully this wouldn't break any compiler. There was some magic
moments to getting this to compile...
9 years ago
88e9a9bcae
Minor reshaping of hb_font_funcs_t implementation
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In anticipation of further changes. No functional changes.
9 years ago
a6a7715bac
Comments
9 years ago
6c48ec830f
[ot] Remove font funcs that do nothing
9 years ago
75ea2daa1d
[ot] Port ot font funcs to allocated object
9 years ago
44f8275080
[ft] Remove font funcs that do nothing
9 years ago
7918c261ef
[ft] Port ft font funcs to allocated object
9 years ago
da29b43794
Separate nil font-funcs from parent-peeking font-funcs
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API change: all fonts created with hb_font_create() now inherit from
(ie have parent) hb_font_get_empty().
9 years ago
bee901b38e
Optimize positioning direction calculations
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It makes the binary smaller AND faster. Yumm!
9 years ago
e3e4bb011a
Don't do fractions if buffer is ASCII-only
9 years ago
6986208ba3
Optimize runs without Default_Ignorable's
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Now that we have a buffer-wide scratch flags facility, use it to
optimize away a few passes.
9 years ago
14c2de3218
Limit max edits during sanitize to 8
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Used to be 100. If a tabe needs more than one or two edits, it's
probably completely bogus...
Might help with speeding up fuzzing for
https://github.com/behdad/harfbuzz/issues/157
9 years ago
9cbc39aef9
Minor
9 years ago
52e6c4e158
If font doesn't support U+2011, fall back to U+2010
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Test passes now.
9 years ago
75483aafa6
Untangle if/else waterfall
9 years ago
04fd8517f8
Add tests for hyphen fallback
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U+2011 is <noBreak> equivaent of U+2010, so we should do the fallback
for it. Currently fails.
9 years ago
550417117d
[test] Drop hintings when subsetting fonts to record
9 years ago
49ef630936
Adjust the width of various spaces if font does not cover them
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See discussion here:
81ef4f407dhttps://github.com/behdad/harfbuzz/issues/153
9 years ago
aa7044de0c
Generalize flags types
9 years ago
7793aad946
Normalize various spaces to space if font doesn't support
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This resurrects the space fallback feature, after I disabled
the compatibility decomposition. Now I can release HarfBuzz
again without breaking Pango!
It also remembers which space character it was, such that later
on we can approximate the width of this particular space
character. That part is not implemented yet.
We normalize all GC=Zs chars except for U+1680 OGHA SPACE MARK,
which is better left alone.
9 years ago
8b3c7f9ede
[test] Support recording multiple lines of text in record-test.sh
9 years ago
8565839480
Protect against possible invalid-memory access after OOM
9 years ago
4cc80bed25
Fix typo!
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Ouch! Fortunately that function was unused.
9 years ago
9ac4b9656d
Add Unicode space category
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Unused so far.
9 years ago
8249ec3f86
Make top-byte of unicode_props available to be used differently per-GC
9 years ago
cc5d3a3388
Towards using top-byte of unicode-props for more things
9 years ago
2f38dde5a1
Add _hb_glyph_info_is_unicode_mark()
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Unused right now.
9 years ago
90d75f93bb
Tighten ccc-setting a bit and document it
9 years ago
2f0dfd43cd
Fix test expectation
9 years ago
df698f3299
[ot-font] Fix hmtx table length checking, *again*
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Exactly the same problem that I fixed in
63ef0b41dc67f8821fb2https://github.com/behdad/harfbuzz/issues/139#issuecomment-153449473
Fixes https://github.com/behdad/harfbuzz/issues/156
9 years ago
3530cc2d7c
[util] Fix option-parsing leaks
9 years ago
642135f3b2
[util] In --debug mode, duplicate font data
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This has the effect that the font data will end up in a memory
section malloc()ed exactly to its size. This gives us better
valgrind detection of out-of-bounds access.
Previously, the font data was placed in a mmap()ed section or
GString-allocated area, which didn't have proper protections
at the end when running under valgrind.
9 years ago
ed2024ef93
[perf] Micro-optimize
9 years ago
76a5310a83
Remove irrelevant comment
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I tried moving the is_default_ignorable() function to an INTERNAL
function. That made the binary size grow by 5k AND things got a
tad bit slower!
9 years ago
8259669fbd
Minor
9 years ago
9382c471ea
Combine unicode_props0/1 into a uint16
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Slightly faster. In prep for more changes.
9 years ago
Behdad Esfahbod