Pipeline variables, like scissor, viewport and blend constants, may
not be provided by the pipeline state if they are set to use the
dynamic state instead. In that case, the related initialization
structures may be null and should not be used.
Bug b/118619338
Change-Id: Ieb5ff066b06ecfe444c6d26e43c70fd18d2f9c31
Tests: dEQP-VK.image.texel_view_compatible.graphic.extended.*
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/29053Tested-by: Alexis Hétu <sugoi@google.com>
Presubmit-Ready: Alexis Hétu <sugoi@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
