Loïc Molinari authored May 25, 2023 and Pekka Paalanen committed Jun 12, 2023

clip_quad() is a dedicated clipping function for quads that doesn't
depend on any GL renderer internal structures. It can be moved out to
the clipper to be called by both the renderer and the clipping test
client without having to duplicate code.

Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>