pixman-renderer: handle surface transform matrix properly
pixman-renderer: handle surface transform matrix properly

Signed-off-by: Vasily Khoruzhick <2750baa0af9b656228a0c6ae55ea7df1c78e68de@gmail.com>

eyolfson/weston,krezovic/weston,kwm81/weston,sir-murray/weston,Gnurou/weston,Fantu/compositor-spice,Tarnyko/weston-xdg_surface_present,Fantu/compositor-spice,mchalupa/weston,krezovic/weston,mchalupa/weston,jonnylamb/weston,xorgy/weston,udoprog/weston,giucam/weston,Tarnyko/weston-xdg_surface_present,sir-murray/weston,Fantu/compositor-spice,kwm81/weston,xorgy/weston,jonnylamb/weston,giucam/weston,Gnurou/weston,udoprog/weston,eyolfson/weston