[d3d9] Rework FF texcoord processing

[K0bin]

Fixes #4035

We need to apply the count after transforming the texcoord.

Passes my tests here: https://gitlab.winehq.org/K0bin/wine/-/blob/ff-texcoord-tests/dlls/d3d9/tests/visual.c#L28402-29023

[K0bin]

This fails one of the Wine tests so it's not final yet. I hope we'll be done with this madness at some point. ._.

[doitsujin]

ah, fair enough

[ghost]

I think this fix is working. Thanks for quick response!

[K0bin]

It passes all the upstream Wine tests and I ran it through all games that are known to be affected by ff texcoord processing:

• WoW
• ColdFear
• Phantasy Star Online (both apitraces)
• Snowblind

Needs to be tested:

• Command & Conquer Generals
• Total War Rome

[Blisto91]

Both Command & Conquer Generals and Total War Rome looks good