Modifying / distorting the final draw data of Adafruit GFX library?

Good day everyone.

I was wondering if it is possible to modify the Adafruit GFX library draw data before it's sent to a display in order to distort the final image?

So think of something like fragment shaders but without using a GPU. I want to see if I can augment, distort, skew the final image for some advanced effects. Like waving text, noise distortion, fancy screen transitions. Would that at all be possible?