This command copies data from host memory into a GPU buffer. It's
analogous to Queue::WriteBuffer, but executed in the context of a
command buffer, sequenced with other encoded commands. This is useful
for supporting a notion of a shared scratch buffer, with a single
allocation whose contents may need to be overwritten with new data
before each pass that uses it.
Bug: dawn:809
Change-Id: If58d49c52a41127e2980dd626fd687eb1c91fe28
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/64001
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ken Rockot <rockot@google.com>
