wined3d: Only update the sampler map when needed

[Henri Verbeet]

On 26 July 2011 22:28, Stefan Dösinger <stefan at codeweavers.com> wrote:
> -        if (state < gl_info->limits.fragment_samplers)
> +        if (state < gl_info->limits.combined_samplers)
This looks like it should be a separate change.

> +        device->fixed_function_usage_map = 0xff;
This looks questionable, it will cause unused textures to be loaded.