- Sampler lod bias and limits do not apply
- Fetch samplerfunction has a lod parameter, pass it

Bug: b/129523279
Test: dEQP-VK.glsl.texture_functions.*
Change-Id: Ia06bb5ff181068b29cf3e88acd9a0272ad1a54c9
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/31748Tested-by: Chris Forbes <chrisforbes@google.com>
Presubmit-Ready: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>