Re: [PATCH v2 0/6] MR489: vkd3d-shader: Prepare for 64-bit integer support.

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about tests/hlsl/arithmetic-float-uniform.shader_test:
> uniform 0 float4 1.0 0.0 0.0 0.0
>  draw quad
>  probe all rgba (1e99, 1e99, 1e99, 1e99)
> +
> +[require]
> +shader model >= 5.0
> +
> +[pixel shader todo]
> +uniform double2 a;
> +
> +float4 main() : SV_TARGET
> +{
> +    double x = a.x;
> +    double y = a.y;
> +    return float4(x + y, x - y, x * y, x / y);
> This is fine for me, but here and below `asuint()` with a `uint4` return type could be used to return an actual double. I don't know if SM6 has something similar for 64 bit integers, but it can be emulated pretty easily with bitshifts anyway.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/489#note_53505