tree 2a669dc1450b4a497362ff89b1e6522c9b2ab852
parent 7880a8f62967bc8cd953538ba057d614e4e76a91
author Herb Derby <herb@google.com> 1679058662 -0400
committer SkCQ <skcq-be@skia-corp.google.com.iam.gserviceaccount.com> 1679079702 +0000

Fix undefined behavior packing top and left

Shifting a negative signed integer is undefined behavior in
C++11. Convert to unsigned int before packing the word together.

Change-Id: I88251eb753da1bf8887b7f06b3356e828968103a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/657996
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Herb Derby <herb@google.com>