Swizzling in NV2A is broken

[JayFoxRox]

There are 2 unswizzling routines, one is severly limited and was taken from screenshot code by @Ernegien . It only supports 640x480 with pitch of 2560 and 32 bpp.

I don't remember where I took the other algorithm from, but it doesn't seem to work for the surfaces.

I wonder if there are different swizzling modes or surface/textures differences, such as tiling.
Overall, the code should be rewritten and get more testing.