tree 6b744da553b375e7965998f2108102e46a8d89a0
parent cdbd295cc6c4002547ebf4f1e0828df123917267
author Hao Li <hao.x.li@intel.com> 1609822148 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1609822148 +0000

Remove internal resolve buffer from Timestamp compute shader

In timestamp compute shader, we will create an internal buffer for
resolving QuerySet and use it as input buffer in compute shader,
the user-provided resolve buffer is used as output buffer.

This will cause the buffer zero initialization to be called twice,
one is the internal buffer is zero initialized in ResolveQuerySet,
antoher is the user-provided buffer is tracked as pass resource
and need to be initialized. But for ResolveQuerySet(), we expect
there is only once.

We have no special requirements to have an internal buffer. It is
possible to directly use the user-provided buffer for read and
write becuase it will get STORAGE_INTERNAL usage.

Bug: dawn:434
Change-Id: Ia8c8ac6e9ba23fea31468a6d9b4580eece189be2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/36201
Commit-Queue: Hao Li <hao.x.li@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>