tree d37a6d1f544d0b150a15f28f58aef3d50a66c89e
parent f62ab75a5ce278c206cf465b37b398fd51e7a379
author Jiawei Shao <jiawei.shao@intel.com> 1590627692 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1590627692 +0000

Support multiple array layers in one texture-to-texture copy command

This patch adds the supports of copying multiple array layers of a
2D array texture in one texture-to-texture call. Note that in D3D12
and Metal it is implemented by copying each array layer in a for-loop.

Note that we need extra validations when the source and destination
texture are the same one in a texture-to-texture copy. This CL does
not include these validations and we will add them in another one.

BUG=dawn:18
TEST=dawn_unittests, dawn_end2end_tests

Change-Id: I1239543e5692e140474b3c1de0b3579be449e283
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22140
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>