commit f6e178dca85ede5cf973aa7571e77b782988b8a0
author Ari Hausman-Cohen <arihc@google.com> Wed Jul 06 17:34:03 2016 -0700
committer Ari Hausman-Cohen <arihc@google.com> Tue Jul 19 16:24:32 2016 -0700
tree 0e8c1116bec281d5cf5f460903e71b8e2e2c050e
parent 44d8432512900c16c062cfc8c6ff4a66ab1f15da

Add helper class for dealing with gralloc.

The helper class deals with choosing the correct locking/unlocking,
and conversion to correct yuv buffer format.

BUG: 29335262
TEST: With some follow up CLs to implement data capture, manually
tested by adjusting gralloc implementation:
  * Jpeg
  * YUV
    * Packed planar
    * Packed semiplanar
    * cstep 4 semiplanar
    * packed planar with extra y padding
    * packed planar with extra y & c padding
    * packed semiplanar with extra y & c padding
Did not test gralloc with less padding than camera, as the test
camera being used has 0 padding to begin with.

Change-Id: Icc5e9b8955cf6e983072b269fd60aefbfd79f883