We need to ignore the SourceValidate callback when copying across
framebuffer pixels to slaved scanouts so that the swcursor and such is
copied across (otherwise the swcursor SourceValidate would restore the
pristine frontbuffer hiding the cursor in the slaves). However, we need
to remember to put
Pixmaps are reference counted and DestroyPixmap is called for the
removal of every reference. However, we only want to stop the adaptors
writing into the Pixmap just before the Pixmap is finally destroyed,
similar to how Windows are handled.
Signed-off-by: Chris Wilson ch...@chris-wilson.co.uk
