[PATCH vkd3d 1/4] vkd3d: Simplify checking if a descriptor has a view.

[Henri Verbeet]

On Wed, 8 Dec 2021 at 16:00, Conor McCarthy <cmccarthy at codeweavers.com> wrote:
> Saves a few CPU cycles on a potentially very hot code path.
> Based on a vkd3d-proton patch by Philip Rebohle.
>
I've signed of on this as the patch probably makes sense regardless of
its performance implications, but could you quantify that claim above?

> +#define MAKE_MAGIC(a,b,c,f) (((uint32_t)a) | (((uint32_t)b) << 8) | (((uint32_t)c) << 16) | f)
> +
We'll probably want to add a common macro for this to vkd3d_common.h,
and then use that both here and in vkd3d-shader, where we're current
using the MAKE_TAG.macro.