tree a99185168b56c42a54c0dd4fa461d4594a732aa0
parent a57f842be9518094c8e9fbc6da1a896cb268f969
author David Neto <dneto@google.com> 1608222571 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1608222571 +0000

spirv-reader: fix arity for depth texture builtins

Texture buitins on depth textures always result in scalar f32.
Corresponding operations in SPIR-V always result in vec4<f32>.

When translating to Tint AST, wrap the generated texture builtin
in a type constructor to vec4, with the builtin result as the
x component.

Fixed: tint:411
Change-Id: Idf26a1cbc7e875bc8a97bf3c0b342c0220c6d4b7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/35900
Auto-Submit: David Neto <dneto@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>