sod_img sod_rotate_image(sod_img input, float rad);
Rotates an image the specified number of degrees.
The rotation angle, in degrees. The rotation angle is interpreted as the number of degrees to rotate the image clockwise.
Rotated image is returned in an instance of the sod_img object. if something goes wrong during processing, then an empty image is returned via sod_make_empty_image(). Once done, you must release the memory allocated to this object via sod_free_image() to avoid memory leaks.