tree d7ab3da2d5c5a71f7d74ae7d4d5c801a2bce6dd8
parent 6be3b97ff55d419be666fc172a3f01b3d0814cd4
author Corentin Wallez <cwallez@chromium.org> 1549928133 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1549928133 +0000

PipelineLayout: Only allow accessing defined BGLs.

Undefined BGLs are stored as nullptr in the pipeline layout, so to be
defensive we assert clients of PipelineLayout can't request undefined
BGLs (which forces iteration on the BGLMask).

Also fix two cases where the BGLs were iterated on incorrectly.

BUG=dawn:8

Change-Id: I3c084125b93d6684b4c79a56745632874079ebec
Reviewed-on: https://dawn-review.googlesource.com/c/4480
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>