[3/8] wined3d: Create a separate function for sampling a texture

[H. Verbeet]

On 27/11/06, Ivan Gyurdiev <ivg231 at gmail.com> wrote:
> H. Verbeet wrote:
> > There are a couple of instructions that have to sample from a texture,
> > right now most of them duplicate that code, and hardcode the texture
> > type.
> >
> > Changelog:
> >  - Create a separate function for sampling a texture
> You should continue to use "add_param" or "get_register_name". There
> should be a single point in the code where register names are
> constructed, adding another one is a bad idea. This function is
> specifically tasked with naming registers, and taking into account
> things like relative addressing, so that when samplers support relative
> addressing in the future, changing the naming scheme would be trivial.
>
Except that that's not going to work. Some instructions, like
texm3x3tex, only give you an index of the sampler to work with.