Zhigang Gong authored Jan 31, 2012 and Emma Anholt committed Dec 18, 2013

This commit move the calling to glamor_close_screen from
glamor_egl_free_screen to glamor_egl_close_screen, as this
is the right place to do this.

We should detach screen fbo and destroy the corresponding
KHR image at glamor_egl_close_screen stage. As latter
DDX driver will call DestroyPixmap to destroy screen pixmap,
if the fbo and image are still there but glamor screen private
data pointer has been freed, then it causes segfault.

This commit also introduces a new flag GLAMOR_USE_EGL_SCREEN.
if DDX driver is using EGL layer then should set this bit
when call to glamor_init and then both glamor_close_screen
and glamor_egl_close_screen will be registered correctly,
DDX layer will not need to call these two functions manually.
This way is also the preferred method within Xorg domain.

As interfaces changed, bump the version to 0.3.0.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Tested-by: Peng Li <peng.li@intel.com>