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  1. 23 2月, 2016 1 次提交
  3. 20 2月, 2016 1 次提交
  5. 19 2月, 2016 3 次提交
    • R
      Suppress linebreaks in emoji ZWJ sequences · d3f45892
      由 Raph Levien 提交于 
      Due to the way emoji ZWJ sequences are defined, the ICU line breaking
algorithm determines that there are valid line breaks inside the
sequence. This patch suppresses these line breaks.

This is an adaptation of I225ebebc0f4186e4b8f48fee399c4a62b3f0218a
into the nyc-dev branch.

Bug: 25433289
Change-Id: I84b50b1e6ef13d436965eab389659d02a30d100f
      d3f45892
    • K
      Optimize: Use measureText instead of doLayout. · ea408fc1
      由 Keisuke Kuroyanagi 提交于 
      With this CL, measureText is used for getRunAdvance,
getOffsetForAdvance and line breaking.

Bug: 24505153
Change-Id: Ib699f6b1391b46537736fc274cdb41686586b550
      ea408fc1
    • R
      Disable hyphenation when word overlaps style boundary · aa736d00
      由 Raph Levien 提交于 
      In cases when a word (as defined by the ICU break iterator) overlaps a
style boundary, the returned wordStart can be extend before the range
currently being measured for layout. When we try to hyphenate the
resulting substrings, we get a negative range, which crashes. This
patch disables hyphenation in this case.

Bug: 27237112
Change-Id: I76d04b39dd3b4d6d267aaaf4bebc9ab361891646
      aa736d00
  7. 18 2月, 2016 15 次提交
  9. 17 2月, 2016 2 次提交
    • S
      Improve Paint.measureText and Paint.hasGlyph for variation sequences. · 6b1c227d
      由 Seigo Nonaka 提交于 
      Before this patch, the font fallback chain iterated all installed font
families if a variation selector was specified.

This CL narrows down the range of iteration.
To decide the font family for the variation sequence, we need to search
for both the variation sequence and its base code point.
The new range of the iteration is a union of them.

With this change, the running time of Paint.hasGlyph for the variation
sequence improves 50% and the running time of Paint.measureText for the
variation sequence improves 40% for the large text case on Nexus 6
userdebug.

Bug: 26784699
Bug: 11750374

Change-Id: Iced1349e3ca750821d8882c551551f65bb569794
      6b1c227d
    • R
      Refine hyphenation around punctuation · 57b6dae9
      由 Raph Levien 提交于 
      Implement a WordBreaker that defines our concept of valid word
boundaries, customizing the ICU behavior. Currently, we suppress line
breaks at soft hyphens (these are handled specially). Also, the
new WordBreaker class has methods that determine the start and end
of the word (punctuation stripped) for the purpose of hyphenation.

This patch, in its current form, doesn't handle email addresses and
URLs specially, but the WordBreaker class is the correct place to do
so. Also, special case handling of hyphens and dashes is still done
in LineBreaker, but all of that should be moved to WordBreaker.

Bug: 20126487
Bug: 20566159
Change-Id: I492cbad963f9b74a2915f010dad46bb91f97b2fe
      57b6dae9
  11. 13 2月, 2016 2 次提交
  13. 12 2月, 2016 1 次提交
  15. 08 2月, 2016 1 次提交
  17. 04 2月, 2016 1 次提交
    • S
      Improve Paint.hasGlyph performance by caching hb_font_t · 89e80237
      由 Seigo Nonaka 提交于 
      It turned out that hb_font_t creation is not a lightweight operation.
Especially, Paint.hasGlyph creates hb_font_t for all existing fonts
every time. To improve the performance, cache hb_font_t instead
of hb_face_t.

Note that to calculate horizontal advance, MinikinPaint needs to be
associated with hb_font_t by calling hb_font_set_funcs. With this patch,
hb_font_set_funcs may be called multiple times for the same hb_font_t
object. However this is not an issue since MinikinPaint is unique
during layout.

Bug: 26784699

Change-Id: I516498ae9f0127d700fc9829327e9789845a1416
      89e80237
  19. 26 1月, 2016 3 次提交
  21. 21 1月, 2016 1 次提交
  23. 16 1月, 2016 8 次提交
  25. 15 1月, 2016 1 次提交
    • S
      Introduce multiple language based font fallback. · 6f9966ea
      由 Seigo Nonaka 提交于 
      The motivation of this CL is enhance the font fallback score design
to support multiple language font fallback.

This CL contains following changes:
- Break language based font score into two: script-based score and
  primary-language-based score.
- The primary-language-based score is 0 if the script-based score is 0.
  If the script-based score is not 0 and the primary language is the
  as same as the requested one, the font gets an extra score of 1.
- The language score gets a higher multiplier for languages higher in
  the locale list.

Bug: 25122318
Bug: 26168983
Change-Id: Ib999997a88e6977e341f4c325e2a1b41a59db2d5
      6f9966ea