[Mesa3d-dev] gallium no texture blanket

[Keith W. <ke...@vm...>]

I intend to merge this branch in the next few days.

This will temporarily break the XShm code in egl/x11, which is coded
around an interesting combination of user_buffer_create +
texture_blanket, but there is other work in progress to address that,
and the non-XShm version continues to work in the meantime.

Additionally, the surface_buffer_create() hook should no longer be
needed and will be removed soonish.  Some drivers still use this
internally, but it doesn't need to be part of the public interface.

Keith