Commit e4458b7bb63a94149ef04a6d00391bb549945cee

Jamie Madill 2019-04-08T16:26:50

Fix glCopyTexSubImage3D. Two bugs were present in our implementation. We were using the y offset for z in ensureSubImageInitialized. And for our D3D back-end we were potentially reading from the wrong image index. Bug: chromium:947342 Change-Id: If39671a911e08fcc641b9ba6f5910e3a2c16eb5d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1558671 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>