jumper, table_{r,g,b,a}

In testing, it didn't really seem like we're getting anything out of
doing an interpolated lookup, so this just does a single rounded lookup.

Change-Id: If85ba68675945b442076519dd7f1bf7540d1628d
Reviewed-on: https://skia-review.googlesource.com/13646
Commit-Queue: Matt Sarett <msarett@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Matt Sarett <msarett@google.com>
6 files changed