tree ffdc3838650a2d5ec7b9da340f08b4acc6e1cfb8
parent 49a1f72a4f9a981d26ad88247910e6dcce123cfe
author Corentin Wallez <cwallez@chromium.org> 1611345226 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1611345226 +0000

Do not track global texture usage in PassResourceUsage.

The global resource usage was used for two things:
 - Validating that the texture had the required usage, but this was
removed in a previous commit in favor of checking the texture's usage at
the encoding entrypoint.
 - Skipping laz-clearing of the texture if it was used as
RenderAttachment. This was incorrect and would skip clearing of all of
the texture's subresource as long as one of them was used as
RenderAttachment.

This commit make PassTextureUsage exactly a
SubresourceStorage<TextureUsage> and fixes the logic for skipping
the clearing or RenderAttachment. It also adds a regression test for the
lazy clearing fix.

Bug: dawn:635
Change-Id: I5d984febb3e5a5f9ae15b632cac68e294555c4e6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/38382
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>