FYI: JDK-8240573: Texture paint does not work with AA rendering

[Alexey Ushakov]

Implemented texture paint for AA mode

-------------

Commit messages:
 - JDK-8240573: Texture paint does not work with AA rendering

Changes: https://git.openjdk.java.net/lanai/pull/7/files
 Webrev: https://webrevs.openjdk.java.net/lanai/7/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-JDK-8240573
  Stats: 83 lines in 3 files changed: 61 ins; 2 del; 20 mod
  Patch: https://git.openjdk.java.net/lanai/pull/7.diff
  Fetch: git fetch https://git.openjdk.java.net/lanai pull/7/head:pull/7

PR: https://git.openjdk.java.net/lanai/pull/7