The timestampWrites in render/compute pass descriptor store the
timestamps at the beginning and end of passes, this requires validating
all timestampWrite members in BeginXxxPass and inserting the
timestampWrite cmd as close as possible to the BeginXxxPass and
EndXxxPass. To do that, we first record only the querySets and
queryIndexes that need to be used in BeginXxxPassCmd and EndXxxPassCmd,
then insert timestampWrite cmd after the native BeginXxxPass and before
the native EndXxxPass in backends.
This CL adds timestampWrites in render/compute pass descriptor
including the validation and tests first.
Implement timestampWrites in backends in following CL.
Bug: dawn:1250
Change-Id: I39b50975aa03cc1afe7a736c3b39df284f54d163
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/82100
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
