[PATCH v11 0/4] MR188: vkd3d-shader/tpf: Add support for emitting sample_l instructions

[Ethan Lee (＠flibitijibibo)]

From what I can tell, the recent work on SampleBias/SampleLevel did all of the work for us, we just need to take the same framework and include the case for the `sample_l` instruction.

Tested with some shaders from the native Linux version of Little Racers STREET.

--
  v11: vkd3d-shader/tpf: For sample_l/sample_b, set lod swizzle to SCALAR.
       vkd3d-shader/tpf: Add support for emitting sample_l instructions
       vkd3d-shader/hlsl: Add support for SampleGrad() method
       tests: Add a test for SampleGrad() method

https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/188