[PATCH vkd3d] vkd3d-shader: Separate the allocated and used mask in struct vkd3d_shader_signature_element.

[Henri Verbeet]

On Fri, 18 Sep 2020 at 08:45, Zebediah Figura <z.figura12 at gmail.com> wrote:
> @@ -2157,7 +2157,11 @@ static int shader_parse_signature(DWORD tag, const char *data, DWORD data_size,
>          read_dword(&ptr, &e[i].sysval_semantic);
>          read_dword(&ptr, &e[i].component_type);
>          read_dword(&ptr, &e[i].register_index);
> -        read_dword(&ptr, &e[i].mask);
> +        read_dword(&ptr, &mask);
> +        e[i].mask = mask & 0xff;
> +        e[i].used_mask = (mask >> 8) & 0xff;
> +        if (tag == TAG_OSGN || tag == TAG_OSG1 || tag == TAG_OSG5)
> +            e[i].used_mask = e[i].mask & ~e[i].used_mask;
>
If we're going to do this, we should do it for patch constant
signatures as well. In its current form this causes failures in
various tessellation shader tests.