tree 9cf1fbb448ec7531708ad5e36ffbd5eecdf604c9
parent 9acdbcba854a3e9e36fa6b1e213ed624d742e818
author Sunny Sachanandani <sunnyps@chromium.org> 1641865014 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1641865014 +0000

d3d12: Use fixed key for keyed mutex acquire and release

Chromium has switched to using a fixed key (0) for quite some time.
Using a fixed key enables future work needed for concurrent access of
external textures both inside Dawn (e.g. importing a video frame twice)
or across Dawn and GL. We want to try scoping the Acquire/Release calls
to command list submission, but with a non-fixed key concurrent access
for the same resource becomes ambiguous.

Bug: chromium:1241533
Change-Id: Ia8ff473b8c9c731c411a3fd59d69213f2d903e61
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75642
Auto-Submit: Sunny Sachanandani <sunnyps@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>