(grub_efi_console_fini): Likewise.
	* grub-core/video/efi_gop.c (framebuffer): New field offscreen.
	(grub_video_gop_fill_mode_info): Rename to ...
	(grub_video_gop_fill_real_mode_info): ... this.
	(grub_video_gop_fill_mode_info): New function.
	(grub_video_gop_setup): Setup double framebuffer.
	(grub_video_gop_get_info_and_fini): Use original framebuffer.
	Free offscreen.
	(grub_video_gop_swap_buffers): Copy framebuffer.
	(grub_video_gop_fini): Free offscreen buffer.
	* include/grub/efi/graphics_output.h (grub_efi_gop_blt_operation_t):
	New enum.
	(grub_efi_gop_blt_pixel): New struct.