Is interpolation of image-border specified by Render?

[Clemens Eisserer]

> Where do these transformation matrices come from?
They were created by the Java AffineTransform class.
I just dumped it and copied it into the C file.

I basically get an AffineTransformation instance (set by the "user"),
inverse it and set it on the source.
For the mask I do exactly the same, except I scale it up, by the needed amount.

- Clemens