tree b59dc0c959610b67a5e4ed5f085714a88658edd1
parent 1da27ef853ae3e701b7f4aae670c21684396dcce
author Matt Sarett <msarett@google.com> 1484865743 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1484878885 +0000

Reland "Respect full precision for RGB16 PNGs" (part 3)

This lands the rest of the original CL.
It fixes some flawed logic in SkSwizzler handling Gray8
images.

Original CL:
https://skia-review.googlesource.com/c/7085/

BUG=skia:

CQ_INCLUDE_TRYBOTS=skia.primary:Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN,Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD,Build-Ubuntu-Clang-x86_64-Release-Fast

Change-Id: Ie2f0c545ea474f1872f284dfb286987b6eadf03d
Reviewed-on: https://skia-review.googlesource.com/7320
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>