tree 8cdaf51906b1a111c8af12e5caa848c57fdc6c07
parent 7df53b7cfb8d4121e099bb17c945ed943ede3141
author Chia-I Wu <olv@google.com> 1482123414 +0800
committer Chia-I Wu <olv@google.com> 1482449870 +0800

graphics: replace non-const references by pointers

Pointers are preferred for output parameters in graphics code.  While at
it, initialize local variables that are for outputs.

Test: builds and boots
Change-Id: I959706ea92949bc2f993ee9beff0c8b0c3121347