1262 lines
36 KiB
Plaintext
1262 lines
36 KiB
Plaintext
Overview of changes leading to 1.1.0
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Wednesday, November 18, 2015
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====================================
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- Implement 'stch' stretch feature for Syriac Abbreviation Mark.
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https://github.com/behdad/harfbuzz/issues/141
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- Disable use of decompose_compatibility() callback.
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- Implement "shaping" of various Unicode space characters, even
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if the font does not support them.
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https://github.com/behdad/harfbuzz/issues/153
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- If font does not support U+2011 NO-BREAK HYPHEN, fallback to
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U+2010 HYPHEN.
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- Changes resulting from libFuzzer continuous fuzzing:
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* Reject font tables that need more than 8 edits,
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* Bound buffer growth during shaping to 32x,
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* Fix assertions and other issues at OOM / buffer max-growth.
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- Misc fixes and optimizations.
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- API changes:
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* All fonts created with hb_font_create() now inherit from
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(ie. have parent) hb_font_get_empty().
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Overview of changes leading to 1.0.6
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Thursday, October 15, 2015
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====================================
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- Reduce max nesting level in OT lookups from 8 to 6.
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Should not affect any real font as far as I know.
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- Fix memory access issue in ot-font.
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- Revert default load-flags of fonts created using hb_ft_font_create()
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back to FT_LOAD_DEFAULT|FT_LOAD_NO_HINTING. This was changed in
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last release (1.0.5), but caused major issues, so revert.
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https://github.com/behdad/harfbuzz/issues/143
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Overview of changes leading to 1.0.5
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Tuesday, October 13, 2015
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====================================
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- Fix multiple memory access bugs discovered using libFuzzer.
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https://github.com/behdad/harfbuzz/issues/139
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Everyone should upgrade to this version as soon as possible.
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We now have continuous fuzzing set up, to avoid issues like
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these creeping in again.
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- Misc fixes.
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- New API:
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* hb_font_set_parent().
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* hb_ft_font_[sg]et_load_flags()
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The default flags for fonts created using hb_ft_font_create()
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has changed to default to FT_LOAD_DEFAULT now. Previously it
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was defaulting to FT_LOAD_DFEAULT|FT_LOAD_NO_HINTING.
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- API changes:
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* Fonts now default to units-per-EM as their scale, instead of 0.
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* hb_font_create_sub_font() does NOT make parent font immutable
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anymore. hb_font_make_immutable() does.
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Overview of changes leading to 1.0.4
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Wednesday, September 30, 2015
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====================================
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- Fix minor out-of-bounds read error.
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Overview of changes leading to 1.0.3
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Tuesday, September 1, 2015
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====================================
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- Start of user documentation, from Simon Cozens!
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- Implement glyph_extents() for TrueType fonts in hb-ot-font.
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- Improve GPOS cursive attachments with conflicting lookups.
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- More fixes for cluster-level = 1.
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- Uniscribe positioning fix.
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Overview of changes leading to 1.0.2
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Wednesday, August 19, 2015
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====================================
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- Fix shaping with cluster-level > 0.
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- Fix Uniscribe backend font-size scaling.
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- Declare dependencies in harfbuzz.pc.
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FreeType is not declared though, to avoid bugs in pkg-config
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0.26 with recursive dependencies.
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- Slightly improved debug infrastructure. More to come later.
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- Misc build fixes.
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Overview of changes leading to 1.0.1
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Monday, July 27, 2015
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====================================
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- Fix out-of-bounds access in USE shaper.
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Overview of changes leading to 1.0.0
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Sunday, July 26, 2015
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====================================
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- Implement Universal Shaping Engine:
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https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm
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http://blogs.windows.com/bloggingwindows/2015/02/23/windows-shapes-the-worlds-languages/
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- Bump version to 1.0.0. The soname was NOT bumped.
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Overview of changes leading to 0.9.42
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Thursday, July 26, 2015
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=====================================
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- New API to allow for retrieving finer-grained cluster
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mappings if the client desires to handle them. Default
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behavior is unchanged.
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- Fix cluster merging when removing default-ignorables.
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- Update to Unicode 8.0
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- hb-graphite2 fixes.
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- Misc fixes.
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- Removed HB_NO_MERGE_CLUSTERS hack.
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- New API:
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hb_buffer_cluster_level_t enum
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hb_buffer_get_cluster_level()
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hb_buffer_set_cluster_level()
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hb-shape / hb-view --cluster-level
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Overview of changes leading to 0.9.41
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Thursday, June 18, 2015
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=====================================
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- Fix hb-coretext with trailing whitespace in right-to-left.
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- New API: hb_buffer_reverse_range().
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- Allow implementing atomic ops in config.h.
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- Fix hb_language_t in language bindings.
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- Misc fixes.
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Overview of changes leading to 0.9.40
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Friday, March 20, 2015
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=====================================
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- Another hb-coretext crasher fix. Ouch!
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- Happy Norouz!
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Overview of changes leading to 0.9.39
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Wednesday, March 4, 2015
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=====================================
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- Critical hb-coretext fixes.
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- Optimizations and refactoring; no functional change
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expected.
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- Misc build fixes.
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Overview of changes leading to 0.9.38
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Friday, January 23, 2015
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=====================================
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- Fix minor out-of-bounds access in Indic shaper.
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- Change New Tai Lue shaping engine from South-East Asian to default,
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reflecting change in Unicode encoding model.
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- Add hb-shape --font-size. Can take up to two numbers for separate
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x / y size.
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- Fix CoreText and FreeType scale issues with negative scales.
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- Reject blobs larger than 2GB. This might break some icu-le-hb clients
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that need security fixes. See:
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http://www.icu-project.org/trac/ticket/11450
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- Avoid accessing font tables during face destruction, in casce rogue
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clients released face data already.
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- Fix up gobject-introspection a bit. Python bindings kinda working.
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See README.python.
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- Misc fixes.
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- API additions:
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hb_ft_face_create_referenced()
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hb_ft_font_create_referenced()
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Overview of changes leading to 0.9.37
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Wednesday, December 17, 2014
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=====================================
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- Fix out-of-bounds access in Context lookup format 3.
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- Indic: Allow ZWJ/ZWNJ before syllable modifiers.
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Overview of changes leading to 0.9.36
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Thursday, November 20, 2014
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=====================================
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- First time that three months went by without a release since
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0.9.2 was released on August 10, 2012!
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- Fix performance bug in hb_ot_collect_glyphs():
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https://bugzilla.mozilla.org/show_bug.cgi?id=1090869
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- Add basic vertical-text support to hb-ot-font.
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- Misc build fixes.
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Overview of changes leading to 0.9.35
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Saturday, August 13, 2014
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=====================================
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- Fix major shape-plan caching bug when more than one shaper were
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provided to hb_shape_full() (as exercised by XeTeX).
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http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1246370.html
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- Fix Arabic fallback shaping regression. This was broken in 0.9.32.
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- Major hb-coretext fixes. That backend is complete now, including
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respecing buffer direction and language, down to vertical writing.
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- Build fixes for Windows CE. Should build fine now.
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- Misc fixes:
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Use atexit() only if it's safe to call from shared library
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https://bugs.freedesktop.org/show_bug.cgi?id=82246
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Mandaic had errors in its Unicode Joining_Type
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https://bugs.freedesktop.org/show_bug.cgi?id=82306
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- API changes:
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* hb_buffer_clear_contents() does not reset buffer flags now.
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After 763e5466c0a03a7c27020e1e2598e488612529a7, one doesn't
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need to set flags for different pieces of text. The flags now
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are something the client sets up once, depending on how it
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actually uses the buffer. As such, don't clear it in
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clear_contents().
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I don't expect any changes to be needed to any existing client.
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Overview of changes leading to 0.9.34
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Saturday, August 2, 2014
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=====================================
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- hb_feature_from_string() now accepts CSS font-feature-settings format.
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- As a result, hb-shape / hb-view --features also accept CSS-style strings.
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Eg, "'liga' off" is accepted now.
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- Add old-spec Myanmar shaper:
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https://bugs.freedesktop.org/show_bug.cgi?id=81775
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- Don't apply 'calt' in Hangul shaper.
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- Fix mark advance zeroing for Hebrew shaper:
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https://bugs.freedesktop.org/show_bug.cgi?id=76767
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- Implement Windows-1256 custom Arabic shaping. Only built on Windows,
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and requires help from get_glyph(). Used by Firefox.
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https://bugzilla.mozilla.org/show_bug.cgi?id=1045139
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- Disable 'liga' in vertical text.
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- Build fixes.
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- API changes:
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* Make HB_BUFFER_FLAG_BOT/EOT easier to use.
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Previously, we expected users to provide BOT/EOT flags when the
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text *segment* was at paragraph boundaries. This meant that for
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clients that provide full paragraph to HarfBuzz (eg. Pango), they
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had code like this:
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hb_buffer_set_flags (hb_buffer,
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(item_offset == 0 ? HB_BUFFER_FLAG_BOT : 0) |
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(item_offset + item_length == paragraph_length ?
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HB_BUFFER_FLAG_EOT : 0));
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hb_buffer_add_utf8 (hb_buffer,
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paragraph_text, paragraph_length,
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item_offset, item_length);
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After this change such clients can simply say:
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hb_buffer_set_flags (hb_buffer,
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HB_BUFFER_FLAG_BOT | HB_BUFFER_FLAG_EOT);
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hb_buffer_add_utf8 (hb_buffer,
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paragraph_text, paragraph_length,
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item_offset, item_length);
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Ie, HarfBuzz itself checks whether the segment is at the beginning/end
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of the paragraph. Clients that only pass item-at-a-time to HarfBuzz
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continue not setting any flags whatsoever.
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Another way to put it is: if there's pre-context text in the buffer,
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HarfBuzz ignores the BOT flag. If there's post-context, it ignores
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EOT flag.
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Overview of changes leading to 0.9.33
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Tuesday, July 22, 2014
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=====================================
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- Turn off ARabic 'cswh' feature that was accidentally turned on.
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- Add HB_TAG_MAX_SIGNED.
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- Make hb_face_make_immutable() really make face immutable!
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- Windows build fixes.
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Overview of changes leading to 0.9.32
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Thursday, July 17, 2014
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=====================================
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- Apply Arabic shaping features in spec order exactly.
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- Another fix for Mongolian free variation selectors.
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- For non-Arabic scripts in Arabic shaper apply 'rlig' and 'calt'
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together.
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- Minor adjustment to U+FFFD logic.
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- Fix hb-coretext build.
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Overview of changes leading to 0.9.31
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Wednesday, July 16, 2014
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=====================================
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- Only accept valid UTF-8/16/32; we missed many cases before.
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- Better shaping of invalid UTF-8/16/32. Falls back to
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U+FFFD REPLACEMENT CHARACTER now.
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- With all changes in this release, the buffer will contain fully
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valid Unicode after hb_buffer_add_utf8/16/32 no matter how
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broken the input is. This can be overriden though. See below.
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- Fix Mongolian Variation Selectors for fonts without GDEF.
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- Fix minor invalid buffer access.
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- Accept zh-Hant and zh-Hans language tags. hb_ot_tag_to_language()
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now uses these instead of private tags.
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- Build fixes.
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- New API:
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* hb_buffer_add_codepoints(). This does what hb_buffer_add_utf32()
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used to do, ie. no validity check on the input at all. add_utf32
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now replaces invalid Unicode codepoints with the replacement
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character (see below).
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* hb_buffer_set_replacement_codepoint()
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* hb_buffer_get_replacement_codepoint()
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Previously, in hb_buffer_add_utf8 and hb_buffer_add_utf16, when
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we detected broken input, we replaced that with (hb_codepoint_t)-1.
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This has changed to use U+FFFD now, but can be changed using these
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new API.
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Overview of changes leading to 0.9.30
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Wednesday, July 9, 2014
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=====================================
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- Update to Unicode 7.0.0:
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* New scripts Manichaean and Psalter Pahlavi are shaped using
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Arabic shaper.
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* All the other new scripts to through the generic shaper for
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now.
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- Minor Indic improvements.
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- Fix graphite2 backend cluster mapping [crasher!]
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- API changes:
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* New HB_SCRIPT_* values for Unicode 7.0 scripts.
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* New function hb_ot_layout_language_get_required_feature().
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- Build fixes.
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Overview of changes leading to 0.9.29
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Thursday, May 29, 2014
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=====================================
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- Implement cmap in hb-ot-font.h. No variation-selectors yet.
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- Myanmar: Allow MedialYa+Asat.
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- Various Indic fixes:
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* Support most characters in Extended Devanagary and Vedic
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Unicode blocks.
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* Allow digits and a some punctuation as consonant placeholders.
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- Build fixes.
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Overview of changes leading to 0.9.28
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Monday, April 28, 2014
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=====================================
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- Unbreak old-spec Indic shaping. (bug 76705)
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- Fix shaping of U+17DD and U+0FC6.
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- Add HB_NO_MERGE_CLUSTERS build option. NOT to be enabled by default
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for shipping libraries. It's an option for further experimentation
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right now. When we are sure how to do it properly, we will add
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public run-time API for the functionality.
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- Build fixes.
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Overview of changes leading to 0.9.27
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Tuesday, March 18, 2014
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=====================================
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- Don't use "register" storage class specifier
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- Wrap definition of free_langs() with HAVE_ATEXIT
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- Add coretext_aat shaper and hb_coretext_face_create() constructor
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- If HAVE_ICU_BUILTIN is defined, use hb-icu Unicode callbacks
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- Add Myanmar test case from OpenType Myanmar spec
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- Only do fallback Hebrew composition if no GPOS 'mark' available
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- Allow bootstrapping without gtk-doc
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- Use AM_MISSING_PROG for ragel and git
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- Typo in ucdn's Makefile.am
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- Improve MemoryBarrier() implementation
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Overview of changes leading to 0.9.26
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Thursday, January 30, 2014
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=====================================
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- Misc fixes.
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- Fix application of 'rtlm' feature.
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- Automatically apply frac/numr/dnom around U+2044 FRACTION SLASH.
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- New header: hb-ot-shape.h
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- Uniscribe: fix scratch-buffer accounting.
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- Reorder Tai Tham SAKOT to after tone-marks.
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- Add Hangul shaper.
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- New files:
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hb-ot-shape-complex-hangul.cc
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hb-ot-shape-complex-hebrew.cc
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hb-ot-shape-complex-tibetan.cc
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- Disable 'cswh' feature in Arabic shaper.
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- Coretext: better handle surrogate pairs.
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- Add HB_TAG_MAX and _HB_SCRIPT_MAX_VALUE.
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Overview of changes leading to 0.9.25
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Wednesday, December 4, 2013
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=====================================
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- Myanmar shaper improvements.
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- Avoid font fallback in CoreText backend.
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- Additional OpenType language tag mappiongs.
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- More aggressive shape-plan caching.
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- Build with / require automake 1.13.
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- Build with libtool 2.4.2.418 alpha to support ppc64le.
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Overview of changes leading to 0.9.24
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Tuesday, November 13, 2013
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=====================================
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- Misc compiler warning fixes with clang.
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- No functional changes.
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Overview of changes leading to 0.9.23
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Monday, October 28, 2013
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=====================================
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- "Udupi HarfBuzz Hackfest", Paris, October 14..18 2013.
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- Fix (Chain)Context recursion with non-monotone lookup positions.
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- Misc Indic bug fixes.
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- New Javanese / Buginese shaping, similar to Windows 8.1.
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Overview of changes leading to 0.9.22
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Thursday, October 3, 2013
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=====================================
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- Fix use-after-end-of-scope in hb_language_from_string().
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- Fix hiding of default_ignorables if font doesn't have space glyph.
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- Protect against out-of-range lookup indices.
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- API Changes:
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* Added hb_ot_layout_table_get_lookup_count()
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Overview of changes leading to 0.9.21
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Monday, September 16, 2013
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=====================================
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- Rename gobject-introspection library name from harfbuzz to HarfBuzz.
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- Remove (long disabled) hb-old and hb-icu-le test shapers.
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- Misc gtk-doc and gobject-introspection annotations.
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- Misc fixes.
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- API changes:
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* Add HB_SET_VALUE_INVALID
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Overview of changes leading to 0.9.20
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Thursday, August 29, 2013
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=====================================
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General:
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- Misc substitute_closure() fixes.
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- Build fixes.
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Documentation:
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- gtk-doc boilerplate integrated. Docs are built now, but
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contain no contents. By next release hopefully we have
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some content in. Enable using --enable-gtk-doc.
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GObject and Introspection:
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- Added harfbuzz-gobject library (hb-gobject.h) that has type
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bindings for all HarfBuzz objects and enums. Enable using
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--with-gobject.
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- Added gobject-introspection boilerplate. Nothing useful
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right now. Work in progress. Gets enabled automatically if
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--with-gobject is used. Override with --disable-introspection.
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OpenType shaper:
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- Apply 'mark' in Myanmar shaper.
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- Don't apply 'dlig' by default.
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Uniscribe shaper:
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- Support user features.
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- Fix loading of fonts that are also installed on the system.
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- Fix shaping of Arabic Presentation Forms.
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- Fix build with wide chars.
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CoreText shaper:
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- Support user features.
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Source changes:
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- hb_face_t code moved to hb-face.h / hb-face.cc.
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- Added hb-deprecated.h.
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API changes:
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- Added HB_DISABLE_DEPRECATED.
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- Deprecated HB_SCRIPT_CANADIAN_ABORIGINAL; replaced by
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HB_SCRIPT_CANADIAN_SYLLABICS.
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- Deprecated HB_BUFFER_FLAGS_DEFAULT; replaced by
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HB_BUFFER_FLAG_DEFAULT.
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- Deprecated HB_BUFFER_SERIALIZE_FLAGS_DEFAULT; replaced by
|
|
HB_BUFFER_SERIALIZE_FLAG_DEFAULT.
|
|
|
|
|
|
Overview of changes leading to 0.9.19
|
|
Tuesday, July 16, 2013
|
|
=====================================
|
|
|
|
- Build fixes.
|
|
- Better handling of multiple variation selectors in a row.
|
|
- Pass on variation selector to GSUB if not consumed by cmap.
|
|
- Fix undefined memory access.
|
|
- Add Javanese config to Indic shaper.
|
|
- Misc bug fixes.
|
|
|
|
Overview of changes leading to 0.9.18
|
|
Tuesday, May 28, 2013
|
|
=====================================
|
|
|
|
New build system:
|
|
|
|
- All unneeded code is all disabled by default,
|
|
|
|
- Uniscribe and CoreText shapers can be enabled with their --with options,
|
|
|
|
- icu_le and old shapers cannot be enabled for now,
|
|
|
|
- glib, freetype, and cairo will be detected automatically.
|
|
They can be force on/off'ed with their --with options,
|
|
|
|
- icu and graphite2 are default off, can be enabled with their --with
|
|
options,
|
|
|
|
Moreover, ICU support is now build into a separate library:
|
|
libharfbuzz-icu.so, and a new harfbuzz-icu.pc is shipped for it.
|
|
Distros can enable ICU now without every application on earth
|
|
getting linked to via libharfbuzz.so.
|
|
|
|
For distros I recommend that they make sure they are building --with-glib
|
|
--with-freetype --with-cairo, --with-icu, and optionally --with-graphite2;
|
|
And package harfbuzz and harfbuzz-icu separately.
|
|
|
|
|
|
Overview of changes leading to 0.9.17
|
|
Monday, May 20, 2013
|
|
=====================================
|
|
|
|
- Build fixes.
|
|
- Fix bug in hb_set_get_min().
|
|
- Fix regression with Arabic mark positioning / width-zeroing.
|
|
|
|
Overview of changes leading to 0.9.16
|
|
Friday, April 19, 2013
|
|
=====================================
|
|
|
|
- Major speedup in OpenType lookup processing. With the Amiri
|
|
Arabic font, this release is over 3x faster than previous
|
|
release. All scripts / languages should see this speedup.
|
|
|
|
- New --num-iterations option for hb-shape / hb-view; useful for
|
|
profiling.
|
|
|
|
Overview of changes leading to 0.9.15
|
|
Friday, April 05, 2013
|
|
=====================================
|
|
|
|
- Build fixes.
|
|
- Fix crasher in graphite2 shaper.
|
|
- Fix Arabic mark width zeroing regression.
|
|
- Don't compose Hangul jamo into Unicode syllables.
|
|
|
|
|
|
Overview of changes leading to 0.9.14
|
|
Thursday, March 21, 2013
|
|
=====================================
|
|
|
|
- Build fixes.
|
|
- Fix time-consuming sanitize with malicious fonts.
|
|
- Implement hb_buffer_deserialize_glyphs() for both json and text.
|
|
- Do not ignore Hangul filler characters.
|
|
- Indic fixes:
|
|
* Fix Malayalam pre-base reordering interaction with post-forms.
|
|
* Further adjust ZWJ handling. Should fix known regressions from
|
|
0.9.13.
|
|
|
|
|
|
Overview of changes leading to 0.9.13
|
|
Thursday, February 25, 2013
|
|
=====================================
|
|
|
|
- Build fixes.
|
|
- Ngapi HarfBuzz Hackfest in London (February 2013):
|
|
* Fixed all known Indic bugs,
|
|
* New Win8-style Myanmar shaper,
|
|
* New South-East Asian shaper for Tai Tham, Cham, and New Tai Lue,
|
|
* Smartly ignore Default_Ignorable characters (joiners, etc) wheb
|
|
matching GSUB/GPOS lookups,
|
|
* Fix 'Phags-Pa U+A872 shaping,
|
|
* Fix partial disabling of default-on features,
|
|
* Allow disabling of TrueType kerning.
|
|
- Fix possible crasher with broken fonts with overlapping tables.
|
|
- Removed generated files from git again. So, one needs ragel to
|
|
bootstrap from the git tree.
|
|
|
|
API changes:
|
|
- hb_shape() and related APIs now abort if buffer direction is
|
|
HB_DIRECTION_INVALID. Previously, hb_shape() was calling
|
|
hb_buffer_guess_segment_properties() on the buffer before
|
|
shaping. The heuristics in that function are fragile. If the
|
|
user really wants the old behvaior, they can call that function
|
|
right before calling hb_shape() to get the old behavior.
|
|
- hb_blob_create_sub_blob() always creates sub-blob with
|
|
HB_MEMORY_MODE_READONLY. See comments for the reason.
|
|
|
|
|
|
Overview of changes leading to 0.9.12
|
|
Thursday, January 18, 2013
|
|
=====================================
|
|
|
|
- Build fixes for Sun compiler.
|
|
- Minor bug fix.
|
|
|
|
Overview of changes leading to 0.9.11
|
|
Thursday, January 10, 2013
|
|
=====================================
|
|
|
|
- Build fixes.
|
|
- Fix GPOS mark attachment with null Anchor offsets.
|
|
- [Indic] Fix old-spec reordering of viramas if sequence ends in one.
|
|
- Fix multi-threaded shaper data creation crash.
|
|
- Add atomic ops for Solaris.
|
|
|
|
API changes:
|
|
- Rename hb_buffer_clear() to hb_buffer_clear_contents().
|
|
|
|
|
|
Overview of changes leading to 0.9.10
|
|
Thursday, January 3, 2013
|
|
=====================================
|
|
|
|
- [Indic] Fixed rendering of Malayalam dot-reph
|
|
- Updated OT language tags.
|
|
- Updated graphite2 backend.
|
|
- Improved hb_ot_layout_get_size_params() logic.
|
|
- Improve hb-shape/hb-view help output.
|
|
- Fixed hb-set.h implementation to not crash.
|
|
- Fixed various issues with hb_ot_layout_collect_lookups().
|
|
- Various build fixes.
|
|
|
|
New API:
|
|
|
|
hb_graphite2_face_get_gr_face()
|
|
hb_graphite2_font_get_gr_font()
|
|
hb_coretext_face_get_cg_font()
|
|
|
|
Modified API:
|
|
|
|
hb_ot_layout_get_size_params()
|
|
|
|
|
|
Overview of changes leading to 0.9.9
|
|
Wednesday, December 5, 2012
|
|
====================================
|
|
|
|
- Fix build on Windows.
|
|
- Minor improvements.
|
|
|
|
|
|
Overview of changes leading to 0.9.8
|
|
Tuesday, December 4, 2012
|
|
====================================
|
|
|
|
|
|
- Actually implement hb_shape_plan_get_shaper ().
|
|
- Make UCDB data tables const.
|
|
- Lots of internal refactoring in OTLayout tables.
|
|
- Flesh out hb_ot_layout_lookup_collect_glyphs().
|
|
|
|
New API:
|
|
|
|
hb_ot_layout_collect_lookups()
|
|
hb_ot_layout_get_size_params()
|
|
|
|
|
|
Overview of changes leading to 0.9.7
|
|
Sunday, November 21, 2012
|
|
====================================
|
|
|
|
|
|
HarfBuzz "All-You-Can-Eat-Sushi" (aka Vancouver) Hackfest and follow-on fixes.
|
|
|
|
- Fix Arabic contextual joining using pre-context text.
|
|
- Fix Sinhala "split matra" mess.
|
|
- Fix Khmer shaping with broken fonts.
|
|
- Implement Thai "PUA" shaping for old fonts.
|
|
- Do NOT route Kharoshthi script through the Indic shaper.
|
|
- Disable fallback positioning for Indic and Thai shapers.
|
|
- Misc fixes.
|
|
|
|
|
|
hb-shape / hb-view changes:
|
|
|
|
- Add --text-before and --text-after
|
|
- Add --bot / --eot / --preserve-default-ignorables
|
|
- hb-shape --output-format=json
|
|
|
|
|
|
New API:
|
|
|
|
hb_buffer_clear()
|
|
|
|
hb_buffer_flags_t
|
|
|
|
HB_BUFFER_FLAGS_DEFAULT
|
|
HB_BUFFER_FLAG_BOT
|
|
HB_BUFFER_FLAG_EOT
|
|
HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES
|
|
|
|
hb_buffer_set_flags()
|
|
hb_buffer_get_flags()
|
|
|
|
HB_BUFFER_SERIALIZE_FLAGS
|
|
hb_buffer_serialize_glyphs()
|
|
hb_buffer_deserialize_glyphs()
|
|
hb_buffer_serialize_list_formats()
|
|
|
|
hb_set_add_range()
|
|
hb_set_del_range()
|
|
hb_set_get_population()
|
|
hb_set_next_range()
|
|
|
|
hb_face_[sg]et_glyph_count()
|
|
|
|
hb_segment_properties_t
|
|
HB_SEGMENT_PROPERTIES_DEFAULT
|
|
hb_segment_properties_equal()
|
|
hb_segment_properties_hash()
|
|
|
|
hb_buffer_set_segment_properties()
|
|
hb_buffer_get_segment_properties()
|
|
|
|
hb_ot_layout_glyph_class_t
|
|
hb_ot_layout_get_glyph_class()
|
|
hb_ot_layout_get_glyphs_in_class()
|
|
|
|
hb_shape_plan_t
|
|
hb_shape_plan_create()
|
|
hb_shape_plan_create_cached()
|
|
hb_shape_plan_get_empty()
|
|
hb_shape_plan_reference()
|
|
hb_shape_plan_destroy()
|
|
hb_shape_plan_set_user_data()
|
|
hb_shape_plan_get_user_data()
|
|
hb_shape_plan_execute()
|
|
hb_shape_plan_get_shaper()
|
|
|
|
hb_ot_shape_plan_collect_lookups()
|
|
|
|
|
|
API changes:
|
|
|
|
- Remove "mask" parameter from hb_buffer_add().
|
|
- Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup().
|
|
- hb-set.h API const correction.
|
|
- Renamed hb_set_min/max() to hb_set_get_min/max().
|
|
- Rename hb_ot_layout_feature_get_lookup_indexes() to hb_ot_layout_feature_get_lookups().
|
|
- Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties().
|
|
|
|
|
|
|
|
Overview of changes leading to 0.9.6
|
|
Sunday, November 13, 2012
|
|
====================================
|
|
|
|
- Don't clear pre-context text if no new context is provided.
|
|
- Fix ReverseChainingSubstLookup, which was totally borked.
|
|
- Adjust output format of hb-shape a bit.
|
|
- Include config.h.in in-tree. Makes it easier for alternate build systems.
|
|
- Fix hb_buffer_set_length(buffer, 0) invalid memory allocation.
|
|
- Use ICU LayoutEngine's C API instead of C++. Avoids much headache.
|
|
- Drop glyphs for all of Unicode Default_Ignorable characters.
|
|
- Misc build fixes.
|
|
|
|
Arabic shaper:
|
|
- Enable 'dlig' and 'mset' features in Arabic shaper.
|
|
- Implement 'Phags-pa shaping, improve Mongolian.
|
|
|
|
Indic shaper:
|
|
- Decompose Sinhala split matras the way old HarfBuzz / Pango did.
|
|
- Initial support for Consonant Medials.
|
|
- Start adding new-style Myanmar shaping.
|
|
- Make reph and 'pref' logic introspect the font.
|
|
- Route Meetei-Mayek through the Indic shaper.
|
|
- Don't apply 'liga' in Indic shaper.
|
|
- Improve Malayalam pre-base reordering Ra interaction with Chillus.
|
|
|
|
|
|
|
|
Overview of changes leading to 0.9.5
|
|
Sunday, October 14, 2012
|
|
====================================
|
|
|
|
- Synthetic-GSUB Arabic fallback shaping.
|
|
|
|
- Misc Indic improvements.
|
|
|
|
- Add build system support for pthread.
|
|
|
|
- Imported UCDN for in-tree Unicode callbacks implementation.
|
|
|
|
- Context-aware Arabic joining.
|
|
|
|
- Misc other fixes.
|
|
|
|
- New API:
|
|
|
|
hb_feature_to/from-string()
|
|
hb_buffer_[sg]et_content_type()
|
|
|
|
|
|
|
|
Overview of changes leading to 0.9.4
|
|
Tuesday, Sep 03, 2012
|
|
====================================
|
|
|
|
- Indic improvements with old-spec Malayalam.
|
|
|
|
- Better fallback glyph positioning, specially with Thai / Lao marks.
|
|
|
|
- Implement dotted-circle insertion.
|
|
|
|
- Better Arabic fallback shaping / ligation.
|
|
|
|
- Added ICU LayoutEngine backend for testing. Call it by the 'icu_le' name.
|
|
|
|
- Misc fixes.
|
|
|
|
|
|
|
|
Overview of changes leading to 0.9.3
|
|
Friday, Aug 18, 2012
|
|
====================================
|
|
|
|
- Fixed fallback mark positioning for left-to-right text.
|
|
|
|
- Improve mark positioning for the remaining combining classes.
|
|
|
|
- Unbreak Thai and fallback Arabic shaping.
|
|
|
|
- Port Arabic shaper to shape-plan caching.
|
|
|
|
- Use new ICU normalizer functions.
|
|
|
|
|
|
|
|
Overview of changes leading to 0.9.2
|
|
Friday, Aug 10, 2012
|
|
====================================
|
|
|
|
- Over a thousand commits! This is the first major release of HarfBuzz.
|
|
|
|
- HarfBuzz is feature-complete now! It should be in par, or better, than
|
|
both Pango's shapers and old HarfBuzz / Qt shapers.
|
|
|
|
- New Indic shaper, supporting main Indic scripts, Sinhala, and Khmer.
|
|
|
|
- Improved Arabic shaper, with fallback Arabic shaping, supporting Arabic,
|
|
Sinhala, N'ko, Mongolian, and Mandaic.
|
|
|
|
- New Thai / Lao shaper.
|
|
|
|
- Tibetan / Hangul support in the generic shaper.
|
|
|
|
- Synthetic GDEF support for fonts without a GDEF table.
|
|
|
|
- Fallback mark positioning for fonts without a GPOS table.
|
|
|
|
- Unicode normalization shaping heuristic during glyph mapping.
|
|
|
|
- New experimental Graphite2 backend.
|
|
|
|
- New Uniscribe backend (primarily for testing).
|
|
|
|
- New CoreText backend (primarily for testing).
|
|
|
|
- Major optimization and speedup.
|
|
|
|
- Test suites and testing infrastructure (work in progress).
|
|
|
|
- Greatly improved hb-view cmdline tool.
|
|
|
|
- hb-shape cmdline tool.
|
|
|
|
- Unicode 6.1 support.
|
|
|
|
Summary of API changes:
|
|
|
|
o Changed API:
|
|
|
|
- Users are expected to only include main header files now (ie. hb.h,
|
|
hb-glib.h, hb-ft.h, ...)
|
|
|
|
- All struct tag names had their initial underscore removed.
|
|
Ie. "struct _hb_buffer_t" is "struct hb_buffer_t" now.
|
|
|
|
- All set_user_data() functions now take a "replace" boolean parameter.
|
|
|
|
- hb_buffer_create() takes zero arguments now.
|
|
Use hb_buffer_pre_allocate() to pre-allocate.
|
|
|
|
- hb_buffer_add_utf*() now accept -1 for length parameteres,
|
|
meaning "nul-terminated".
|
|
|
|
- hb_direction_t enum values changed.
|
|
|
|
- All *_from_string() APIs now take a length parameter to allow for
|
|
non-nul-terminated strings. A -1 length means "nul-terminated".
|
|
|
|
- Typedef for hb_language_t changed.
|
|
|
|
- hb_get_table_func_t renamed to hb_reference_table_func_t.
|
|
|
|
- hb_ot_layout_table_choose_script()
|
|
|
|
- Various renames in hb-unicode.h.
|
|
|
|
o New API:
|
|
|
|
- hb_buffer_guess_properties()
|
|
Automatically called by hb_shape().
|
|
|
|
- hb_buffer_normalize_glyphs()
|
|
|
|
- hb_tag_from_string()
|
|
|
|
- hb-coretext.h
|
|
|
|
- hb-uniscribe.h
|
|
|
|
- hb_face_reference_blob()
|
|
- hb_face_[sg]et_index()
|
|
- hb_face_set_upem()
|
|
|
|
- hb_font_get_glyph_name_func_t
|
|
hb_font_get_glyph_from_name_func_t
|
|
hb_font_funcs_set_glyph_name_func()
|
|
hb_font_funcs_set_glyph_from_name_func()
|
|
hb_font_get_glyph_name()
|
|
hb_font_get_glyph_from_name()
|
|
hb_font_glyph_to_string()
|
|
hb_font_glyph_from_string()
|
|
|
|
- hb_font_set_funcs_data()
|
|
|
|
- hb_ft_font_set_funcs()
|
|
- hb_ft_font_get_face()
|
|
|
|
- hb-gobject.h (work in progress)
|
|
|
|
- hb_ot_shape_glyphs_closure()
|
|
hb_ot_layout_substitute_closure_lookup()
|
|
|
|
- hb-set.h
|
|
|
|
- hb_shape_full()
|
|
|
|
- hb_unicode_combining_class_t
|
|
|
|
- hb_unicode_compose_func_t
|
|
hb_unicode_decompose_func_t
|
|
hb_unicode_decompose_compatibility_func_t
|
|
hb_unicode_funcs_set_compose_func()
|
|
hb_unicode_funcs_set_decompose_func()
|
|
hb_unicode_funcs_set_decompose_compatibility_func()
|
|
hb_unicode_compose()
|
|
hb_unicode_decompose()
|
|
hb_unicode_decompose_compatibility()
|
|
|
|
o Removed API:
|
|
|
|
- hb_ft_get_font_funcs()
|
|
|
|
- hb_ot_layout_substitute_start()
|
|
hb_ot_layout_substitute_lookup()
|
|
hb_ot_layout_substitute_finish()
|
|
hb_ot_layout_position_start()
|
|
hb_ot_layout_position_lookup()
|
|
hb_ot_layout_position_finish()
|
|
|
|
|
|
|
|
Overview of changes leading to 0.6.0
|
|
Friday, May 27, 2011
|
|
====================================
|
|
|
|
- Vertical text support in GPOS
|
|
- Almost all API entries have unit tests now, under test/
|
|
- All thread-safety issues are fixed
|
|
|
|
Summary of API changes follows.
|
|
|
|
|
|
* Simple Types API:
|
|
|
|
o New API:
|
|
HB_LANGUAGE_INVALID
|
|
hb_language_get_default()
|
|
hb_direction_to_string()
|
|
hb_direction_from_string()
|
|
hb_script_get_horizontal_direction()
|
|
HB_UNTAG()
|
|
|
|
o Renamed API:
|
|
hb_category_t renamed to hb_unicode_general_category_t
|
|
|
|
o Changed API:
|
|
hb_language_t is a typed pointers now
|
|
|
|
o Removed API:
|
|
HB_TAG_STR()
|
|
|
|
|
|
* Use ISO 15924 tags for hb_script_t:
|
|
|
|
o New API:
|
|
hb_script_from_iso15924_tag()
|
|
hb_script_to_iso15924_tag()
|
|
hb_script_from_string()
|
|
|
|
o Changed API:
|
|
HB_SCRIPT_* enum members changed value.
|
|
|
|
|
|
* Buffer API streamlined:
|
|
|
|
o New API:
|
|
hb_buffer_reset()
|
|
hb_buffer_set_length()
|
|
hb_buffer_allocation_successful()
|
|
|
|
o Renamed API:
|
|
hb_buffer_ensure() renamed to hb_buffer_pre_allocate()
|
|
hb_buffer_add_glyph() renamed to hb_buffer_add()
|
|
|
|
o Removed API:
|
|
hb_buffer_clear()
|
|
hb_buffer_clear_positions()
|
|
|
|
o Changed API:
|
|
hb_buffer_get_glyph_infos() takes an out length parameter now
|
|
hb_buffer_get_glyph_positions() takes an out length parameter now
|
|
|
|
|
|
* Blob API streamlined:
|
|
|
|
o New API:
|
|
hb_blob_get_data()
|
|
hb_blob_get_data_writable()
|
|
|
|
o Renamed API:
|
|
hb_blob_create_empty() renamed to hb_blob_get_empty()
|
|
|
|
o Removed API:
|
|
hb_blob_lock()
|
|
hb_blob_unlock()
|
|
hb_blob_is_writable()
|
|
hb_blob_try_writable()
|
|
|
|
o Changed API:
|
|
hb_blob_create() takes user_data before destroy now
|
|
|
|
|
|
* Unicode functions API:
|
|
|
|
o Unicode function vectors can subclass other unicode function vectors now.
|
|
Unimplemented callbacks in the subclass automatically chainup to the parent.
|
|
|
|
o All hb_unicode_funcs_t callbacks take a user_data now. Their setters
|
|
take a user_data and its respective destroy callback.
|
|
|
|
o New API:
|
|
hb_unicode_funcs_get_empty()
|
|
hb_unicode_funcs_get_default()
|
|
hb_unicode_funcs_get_parent()
|
|
|
|
o Changed API:
|
|
hb_unicode_funcs_create() now takes a parent_funcs.
|
|
|
|
o Removed func getter functions:
|
|
hb_unicode_funcs_get_mirroring_func()
|
|
hb_unicode_funcs_get_general_category_func()
|
|
hb_unicode_funcs_get_script_func()
|
|
hb_unicode_funcs_get_combining_class_func()
|
|
hb_unicode_funcs_get_eastasian_width_func()
|
|
|
|
|
|
* Face API:
|
|
|
|
o Renamed API:
|
|
hb_face_get_table() renamed to hb_face_reference_table()
|
|
hb_face_create_for_data() renamed to hb_face_create()
|
|
|
|
o Changed API:
|
|
hb_face_create_for_tables() takes user_data before destroy now
|
|
hb_face_reference_table() returns empty blob instead of NULL
|
|
hb_get_table_func_t accepts the face as first parameter now
|
|
|
|
* Font API:
|
|
|
|
o Fonts can subclass other fonts now. Unimplemented callbacks in the
|
|
subclass automatically chainup to the parent. When chaining up,
|
|
scale is adjusted if the parent font has a different scale.
|
|
|
|
o All hb_font_funcs_t callbacks take a user_data now. Their setters
|
|
take a user_data and its respective destroy callback.
|
|
|
|
o New API:
|
|
hb_font_get_parent()
|
|
hb_font_funcs_get_empty()
|
|
hb_font_create_sub_font()
|
|
|
|
o Removed API:
|
|
hb_font_funcs_copy()
|
|
hb_font_unset_funcs()
|
|
|
|
o Removed func getter functions:
|
|
hb_font_funcs_get_glyph_func()
|
|
hb_font_funcs_get_glyph_advance_func()
|
|
hb_font_funcs_get_glyph_extents_func()
|
|
hb_font_funcs_get_contour_point_func()
|
|
hb_font_funcs_get_kerning_func()
|
|
|
|
o Changed API:
|
|
hb_font_create() takes a face and references it now
|
|
hb_font_set_funcs() takes user_data before destroy now
|
|
hb_font_set_scale() accepts signed integers now
|
|
hb_font_get_contour_point_func_t now takes glyph first, then point_index
|
|
hb_font_get_glyph_func_t returns a success boolean now
|
|
|
|
|
|
* Changed object model:
|
|
|
|
o All object types have a _get_empty() now:
|
|
hb_blob_get_empty()
|
|
hb_buffer_get_empty()
|
|
hb_face_get_empty()
|
|
hb_font_get_empty()
|
|
hb_font_funcs_get_empty()
|
|
hb_unicode_funcs_get_empty()
|
|
|
|
o Added _set_user_data() and _get_user_data() for all object types:
|
|
hb_blob_get_user_data()
|
|
hb_blob_set_user_data()
|
|
hb_buffer_get_user_data()
|
|
hb_buffer_set_user_data()
|
|
hb_face_get_user_data()
|
|
hb_face_set_user_data()
|
|
hb_font_funcs_get_user_data()
|
|
hb_font_funcs_set_user_data()
|
|
hb_font_get_user_data()
|
|
hb_font_set_user_data()
|
|
hb_unicode_funcs_get_user_data()
|
|
hb_unicode_funcs_set_user_data()
|
|
|
|
o Removed the _get_reference_count() from all object types:
|
|
hb_blob_get_reference_count()
|
|
hb_buffer_get_reference_count()
|
|
hb_face_get_reference_count()
|
|
hb_font_funcs_get_reference_count()
|
|
hb_font_get_reference_count()
|
|
hb_unicode_funcs_get_reference_count()
|
|
|
|
o Added _make_immutable() and _is_immutable() for all object types except for buffer:
|
|
hb_blob_make_immutable()
|
|
hb_blob_is_immutable()
|
|
hb_face_make_immutable()
|
|
hb_face_is_immutable()
|
|
|
|
|
|
* Changed API for vertical text support
|
|
|
|
o The following callbacks where removed:
|
|
hb_font_get_glyph_advance_func_t
|
|
hb_font_get_kerning_func_t
|
|
|
|
o The following new callbacks added instead:
|
|
hb_font_get_glyph_h_advance_func_t
|
|
hb_font_get_glyph_v_advance_func_t
|
|
hb_font_get_glyph_h_origin_func_t
|
|
hb_font_get_glyph_v_origin_func_t
|
|
hb_font_get_glyph_h_kerning_func_t
|
|
hb_font_get_glyph_v_kerning_func_t
|
|
|
|
o The following API removed as such:
|
|
hb_font_funcs_set_glyph_advance_func()
|
|
hb_font_funcs_set_kerning_func()
|
|
hb_font_get_glyph_advance()
|
|
hb_font_get_kerning()
|
|
|
|
o New API added instead:
|
|
hb_font_funcs_set_glyph_h_advance_func()
|
|
hb_font_funcs_set_glyph_v_advance_func()
|
|
hb_font_funcs_set_glyph_h_origin_func()
|
|
hb_font_funcs_set_glyph_v_origin_func()
|
|
hb_font_funcs_set_glyph_h_kerning_func()
|
|
hb_font_funcs_set_glyph_v_kerning_func()
|
|
hb_font_get_glyph_h_advance()
|
|
hb_font_get_glyph_v_advance()
|
|
hb_font_get_glyph_h_origin()
|
|
hb_font_get_glyph_v_origin()
|
|
hb_font_get_glyph_h_kerning()
|
|
hb_font_get_glyph_v_kerning()
|
|
|
|
o The following higher-leve API added for convenience:
|
|
hb_font_get_glyph_advance_for_direction()
|
|
hb_font_get_glyph_origin_for_direction()
|
|
hb_font_add_glyph_origin_for_direction()
|
|
hb_font_subtract_glyph_origin_for_direction()
|
|
hb_font_get_glyph_kerning_for_direction()
|
|
hb_font_get_glyph_extents_for_origin()
|
|
hb_font_get_glyph_contour_point_for_origin()
|
|
|
|
|
|
* OpenType Layout API:
|
|
|
|
o New API:
|
|
hb_ot_layout_position_start()
|
|
hb_ot_layout_substitute_start()
|
|
hb_ot_layout_substitute_finish()
|
|
|
|
|
|
* Glue code:
|
|
|
|
o New API:
|
|
hb_glib_script_to_script()
|
|
hb_glib_script_from_script()
|
|
hb_icu_script_to_script()
|
|
hb_icu_script_from_script()
|
|
|
|
|
|
* Version API added:
|
|
|
|
o New API:
|
|
HB_VERSION_MAJOR
|
|
HB_VERSION_MINOR
|
|
HB_VERSION_MICRO
|
|
HB_VERSION_STRING
|
|
HB_VERSION_CHECK()
|
|
hb_version()
|
|
hb_version_string()
|
|
hb_version_check()
|
|
|
|
|