| 6b1c227da6492a435f0341d7fe95d9992669920e |
|
02-Feb-2016 |
Seigo Nonaka <nona@google.com> |
Improve Paint.measureText and Paint.hasGlyph for variation sequences.
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
/frameworks/minikin/include/minikin/CmapCoverage.h
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| 9cc9bbe1461f359f0b27c5e7645c17dda001ab1d |
|
24-Apr-2013 |
Raph Levien <raph@google.com> |
Initial commit of Minikin library
This is the initial draft of Minikin, a library intended to perform text
layout functions. This version does basic weight selection and font runs
for scripts, and also has a simple renderer for drawing into bitmaps,
but is lacking measurement, line breaking, and a number of other
important features. It also lacks caching and other performance
refinements.
Change-Id: I789a2e47d11d71202dc84b4751b51a5e2cd9c451
/frameworks/minikin/include/minikin/CmapCoverage.h
|