tree 8cd842a615c863eedb6ebee79f0ab86da582fdcb
parent ccda6a0009e75a68c8d1c74de5198446a838d71a
author Austin Eng <enga@chromium.org> 1598985618 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1598985618 +0000

Update depth-stencil copy validation

Depth/stencil copies of partial subresources is disallowed in
WebGPU because this is a D3D12 restriction. This restriction
need also to be enforced on B2T, T2B and WriteTexture.

This CL also fixes the subresource whole size calucation to use
the mip level. Previously, the 0th level size was always used.

This CL updates the validation to be correct and adds tests.
The DepthStencilCopy tests are factored into smaller helpers to
reduce code duplication.

Bug: dawn:439
Change-Id: I45d4836f6be1707c5171bddef875e535e935f7f4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/26660
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>