tree 82eabfcb3a40cb788b5b1b5c36ea2cc669d71326
parent 33466973bc4c52effb520832d538b48c38695ca5
author Corentin Wallez <cwallez@chromium.org> 1582556898 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1582556898 +0000

Vulkan: Load promoted extensions or core entrypoint as needed

Previously we would always assume that if the driver supported a Vulkan
version it would also support extensions that were promoted in that
version. This is not a spec requirement, so instead try to load the core
entrypoints, and only if the version is not available, load the
extension entrypoints.

Also renames VulkanFunction members that are from promoted extension to
not have a vendor prefix.

Also tag the promoted extensions that are the same in a core version as
available when that core version is available. This simplifies checking
for features in the Vulkan backend.

Bug:
Change-Id: I0817c01b8838ba26070858abb0cbed030e3291df
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16040
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: David Turner <digit@google.com>