Get a SUImageRef and write the texture with SUTextureWriteToFile

[tt_su]

Note that this is a regression that happened in SU2014.

How should i use s and t scale factor from SUTexture?

Yea, that’s what I observed as well. Multiple of 4. This might be a regression however - as we changed the image handling lib for SU2014 and that added row padding. The one before that was not using padding. Though I’ve not seen if 4 is safe to rely on. Need to look further.