tree 96fcad63516da3ad9ca638a510d89bb68efc98ba
parent b86e45f8ca873b7441abf3e4f4ad344b1c204484
author Yunchao He <yunchao.he@intel.com> 1624002252 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1624002252 +0000

Implement copies b/w 3D and 2DArray textures on D3D12

Copies between 3D and 2DArray textures need to be done depth/array
slice by slice via CopyTextureRegion() API on D3D12 because this
API can copy one single subresource every time.

However, if both src and dst textures are 3D texture, we can copy
all depth slices in one shot, which is a fast path for this
copy scenario.

Bug: dawn:547

Change-Id: I950ed58319fb0f30dfc8a2de3e57e8a64406f7e4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/55140
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>