hg: jdk/sandbox: Initial implementation of mask cache for Text rendering

[jayathirth.d.v at oracle.com]

Changeset: db2be8544d10
Author:    jdv
Date:      2019-07-09 17:05 +0530
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/db2be8544d10

Initial implementation of mask cache for Text rendering

! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLTextRenderer.m
! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLVertexCache.h
! src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/MTLVertexCache.m