[11u] RFR: 8220231: Cache HarfBuzz face object for same font's text layout calls

[Hohensee, Paul]

Lgtm.

Paul

On 11/18/19, 4:52 AM, "jdk-updates-dev on behalf of Lindenmaier, Goetz" <jdk-updates-dev-bounces at openjdk.java.net on behalf of goetz.lindenmaier at sap.com> wrote:

    Hi,
    
    i would like to downport this change for parity with 11.0.6-oracle.
    I had to resolve two files, both trivial:
    
    src/java.desktop/share/classes/sun/font/FreetypeFontScaler.java
    One patch did not apply due to a difference in a comment in the context.
    
    src/java.desktop/share/native/libfontmanager/hb-jdk-font.cc
    A huge chunk could not get applied. This is because tiny
    "8223886: Add in font table referene" was applied after
    this change in jdk/jdk, but was already downported to 11u-dev,
    so it comes there first.
    The version history of this file in 11 and 14 is exactly the
    same, I resolved the conflict so that the files look alike.
    
    webrev: http://cr.openjdk.java.net/~goetz/wr19/8220231-cache_harfbuzz-jdk11/01/
    bug: https://bugs.openjdk.java.net/browse/JDK-8220231
    orig change: http://hg.openjdk.java.net/jdk/jdk/rev/98473958d49a
    The conflicting change is closed, unfortunately:
    8223886: Add in font table referene
    http://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/174afa5802bd
    
    Best regards,
      Goetz