tree 83c597bdbd6a631361b138a2dc4130cfd8822b1a
parent 5b45794c2c24c3fa40dc480af92c5284a95423ef
author Shrek Shao <shrekshao@google.com> 1705957080 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1705957080 +0000

Compat: fix offset % 4 cases for BlitTextureToBuffer

Depth and stencil format copy requires offset % 4 == 0.
For color format, there is no such requirement.
Update compute shader for R8Snorm and RG8Snorm to cover
various edge cases introduced by offset % 4 > 0.

The implementation in this CL has room for improvement
by separating these edge cases into different passes.
This implementation only focuses on correctness first.

Bug: dawn:2314, dawn:667
Change-Id: Ia35c864c3ee0d97bfb500dda68ceb65f2ba37dfd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/168080
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Shrek Shao <shrekshao@google.com>