Re: [PATCH 0/3] MR339: vkd3d-shader/hlsl: Produce 2D resource declarations and loads for tex1D().

[Zebediah Figura (＠zfigura)]

On Tue Sep 12 18:26:00 2023 +0000, Nikolay Sivov wrote:
> Compiling for ps_2_0 produces:
> mov r0.xy, c0.y
> texld ..., r0, ...
>
> For ps_3_0 it does:
> ```texld .., c0.y, ...```
> I'm not sure what it means. Is it possible c0.y here means c0.yyyy?
> My point is, I'm not sure it's exactly junk that it's putting there.

For example this shader will use c0.y:

```
uniform float4 f;
sampler1D t;

float4 main(float4 tex : texcoord0) : color
{
return tex1D(t, f.x);
}
```
> I'm not sure what it means. Is it possible c0.y here means c0.yyyy?

Yes, a single component implies replicate swizzle. Similarly omitted swizzle means .xyzw.