[5/5] WineD3D: Implement high order patches

[Ivan Gyurdiev]

Stefan Dösinger wrote:
> There are other things too which could be moved, but I'm not sure if that 
> would make the code more readable. One big function which does things step by 
> step vs a few smaller functions which disturbs the readflow.
>   

All of this code pasted 3 times could probably benefit from some loops 
over an index.
Without knowing anything about the code - typically big if statements 
are candidates for a sub-function (if (normal))....