commit 4856210398468fd5196e1cb68b80e7529e1046a0
author Leon Scroggins III <scroggo@google.com> Fri Mar 09 11:59:17 2018 -0500
committer Leon Scroggins III <scroggo@google.com> Mon Mar 12 14:01:57 2018 -0400
tree 99a7ea7a7cca33ffcfc42331489deeae26d0c3b2
parent 15e91e6f3a1ef044f3489bbaf34156b78a22d563

Encode F16 Bitmaps to 8-bit P3

Bug: 73743812
Bug: 71430152
Test: If2c3ee0f32eff77b11ce5a7fe82c02811ed1beb3

This matches how we handle decoding images with a wide gamut. For WebP
and JPEG, we cannot encode with more precision anyway. For PNG, we could
in theory encode to 16 bit linear PNGs. This would be more precise, but
would still throw away information due to normalization. Using 8-bit P3
matches the behavior for the other formats, so it is nice to be
consistent.

Change-Id: I69a44a3eff70e26448a75ecc63ed7604b9c74a95