Re: [PATCH v4 0/7] MR181: vkd3d-shader: Normalise signatures and input/output registers to the Shader Model 6 pattern.

[Conor McCarthy (＠cmccarthy)]

> This works, but only because sizeof(*signature->elements) is smaller than sizeof(*src->elements).

I changed it to `vkd3d_calloc()`, but I see no size mismatch here.
> I think we could return a pointer to the element itself here, instead of the index.

The index is used to address `dcl_params`, and it's stored in a register as an index.