tree c59372d86fffc1f7b656dea1b6be9c4ae753bdd1
parent 5566afc92caff56df84a8666b7364412ed0d5f39
author Kai Ninomiya <kainino@chromium.org> 1703115568 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1703115568 +0000

webgpu.h: Reserve 0 for enums, in a few more possibly-breaking cases

These enums should be required to be set explicitly, so 0 is now
supposed to be invalid (where previously zero-init would just give you
the 0th enum value).

- AlphaMode is used in CopyTextureForBrowser. Since Chromium tests run
  on CQ, any breakage here should be caught (except it's known that the
  reftests aren't running on CQ and could hit this. I've run those
  locally.)
  - It is also reordered to sort-of mirror GPUCanvasAlphaMode even
    though it is not the same thing.
- QueryType is used in QuerySetDescriptor. Since there's no reasonable
  default here it's less likely anyone has written code that's using
  zero-init to get occlusion queries, but there could be.

Bug: dawn:2224
Change-Id: I0e74b37baa7b164ee6f3ad4fe05e91d91e25f104
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/166388
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Loko Kung <lokokung@google.com>
Reviewed-by: Loko Kung <lokokung@google.com>
Auto-Submit: Kai Ninomiya <kainino@chromium.org>