The assignment of logical identifiers is not guaranteed to match the
order of appearance in the shader bytecode. Adjusted D3D12_CBuffer_Zoo
to exercise this for testing.
* This doesn't test every edge case, but it is a simple smoke test that ensures
any format can at least get consistent accurate results out.
* Further work is needed to test the different failures, overdraws, primitive
IDs, and all the other specific checks in the history.
* The builtin is more directly useful but the signature index allows us to match
up inputs and outputs that don't have a builtin meaning (pure interpolators).
Added fetching of texture data for UAVs, to allow stores to occur.
Fixed issues with sample/gather when debugging a compute shader.
Added a demo for dispatch in D3D12.
SV_PrimitiveID is only valid as a pixel shader input if there's either
no geometry shader, or the geometry shader emits SV_PrimitiveID. With
D3D11, the debug layer will complain but rendering will proceed. With
D3D12, the PSO fails to compile. For both APIs, pixel shader debugging
now checks whether this is true, and disables its usage if it isn't.
Added tests for various valid scenarios with SV_PrimitiveID.
The logical identifiers, rather than shader registers, were used to
populate reflection info, causing the wrong slots in large descriptor
tables to be referenced for the pipeline state.
* It's not particularly scalable and can be brittle to driver changes, and we
can use targeted specific pixel tests to check what we really want - to see if
the output has rendered correctly.
* Overlay tests still check files directly - this is a future refactor to
remove.
This mimics the D3D11 shader debugging test, but performs the draws
twice - once with SM 5.0 and once with SM 5.1. The python test performs
the same checks as the D3D11 version, but is explicitly disabled since
D3D12 shader debugging is not yet enabled by default.
* This is kind of what VK_Parameter_Zoo is intended to test, but I don't want to
add conditional extension tests in there unless there's nowhere else to put
it, since it adds mental overhead to reading the code.
Steve Karolewics