Make several optimisations while on it.

	* grub-core/video/fb/fbblit.c (grub_video_fbblit_replace_directN):
	Optimise and use GRUB_VIDEO_FB_ADVANCE_POINTER.
	(grub_video_fbblit_replace_32bit_1bit): Likewise.
	(grub_video_fbblit_replace_24bit_1bit) [!GRUB_HAVE_UNALIGNED_ACCESS]:
	Disable.
	(grub_video_fbblit_replace_16bit_1bit):
	Optimise and use GRUB_VIDEO_FB_ADVANCE_POINTER.
	(grub_video_fbblit_replace_8bit_1bit): Likewise.
	(grub_video_fbblit_replace_BGRX8888_RGBX8888): Likewise.
	(grub_video_fbblit_replace_BGRX8888_RGB888): Likewise.
	(grub_video_fbblit_replace_BGR888_RGBX8888): Likewise.
	(grub_video_fbblit_replace_BGR888_RGBX8888): Likewise.
	(grub_video_fbblit_replace_BGR888_RGB888): Likewise.
	(grub_video_fbblit_replace_RGBX8888_RGB88): Likewise.
	(grub_video_fbblit_replace_RGB888_RGBX888): Likewise.
	(grub_video_fbblit_replace_RGB888_RGBX8888): Likewise.
	(grub_video_fbblit_replace_index_RGBX8888): Likewise.
	(grub_video_fbblit_replace_index_RGB888): Likewise.
	(grub_video_fbblit_blend_BGRA8888_RGBA8888): Likewise.
	(grub_video_fbblit_blend_BGR888_RGBA8888): Likewise.
	(grub_video_fbblit_blend_RGBA8888_RGBA8888): Likewise.
	(grub_video_fbblit_blend_RGB888_RGBA8888): Likewise.
	(grub_video_fbblit_blend_index_RGBA8888): Likewise.
	(grub_video_fbblit_blend_XXXA8888_1bit): Likewise.
	(grub_video_fbblit_blend_XXX888_1bit) [!GRUB_HAVE_UNALIGNED_ACCESS]:
	Disable.
	(grub_video_fbblit_blend_XXX565_1bit):
	Optimise and use GRUB_VIDEO_FB_ADVANCE_POINTER.
	* grub-core/video/fb/fbfill.c (grub_video_fbfill_direct32): Likewise.
	* grub-core/video/fb/fbutil.c (grub_video_fb_get_video_ptr): Return
	void *.
	* grub-core/video/fb/video_fb.c (common_blitter)
	[!GRUB_HAVE_UNALIGNED_ACCESS]: Skip disabled blitters.
	(grub_video_fb_create_render_target_from_pointer)
	[!GRUB_HAVE_UNALIGNED_ACCESS]: Check alignment.
	* include/grub/fbutil.h (grub_video_fb_get_video_ptr): Return void *.
	* include/grub/i386/types.h (GRUB_HAVE_UNALIGNED_ACCESS): New
	definition.
	* include/grub/x86_64/types.h (GRUB_HAVE_UNALIGNED_ACCESS): Likewise.

	* include/grub/fbfill.h (struct grub_video_fbrender_target): Use
	grub_uint8_t pointer for data.
	* include/grub/fbutil.h (struct grub_video_fbblit_info):
	Likewise.
	* video/fb/fbutil.c: Remove unnecessary casts.

	Remove duplicate grub_video_fb_get_video_ptr.

	* include/grub/fbutil.h (get_data_ptr): Rename to ...
	(grub_video_fb_get_video_ptr): ... this.
	* include/grub/video_fb.h (grub_video_fb_get_video_ptr): Removed.
	* video/fb/fbutil.c: Add comment about addressing.
	(get_data_ptr): Rename to ...
	(grub_video_fb_get_video_ptr): ... this. All users updated.
	* video/fb/video_fb.c (grub_video_fb_get_video_ptr): Remove.

	Framebuffer split.

	* commands/i386/pc/vbetest.c (grub_cmd_vbetest): Restore video
	subsystem at the end.
	* conf/common.rmk (pkglib_MODULES): Add video_fb.mod.
	(video_fb_mod_SOURCES): New variable.
	(video_fb_mod_CFLAGS): Likewise.
	(video_fb_mod_LDFLAGS): Likewise.
	* conf/i386-pc.rmk (vbe_mod_SOURCES): Remove video/i386/pc/vbeblit.c,
	video/i386/pc/vbefill.c and video/i386/pc/vbeutil.c.
	* video/i386/pc/vbeblit.c: Moved from here ...
	* video/fb/fbblit.c: ..here. Replaced 'vbe' with 'fb'.
	* video/i386/pc/vbefill.c: Moved from here ...
	* video/fb/fbfill.c: ..here. Replaced 'vbe' with 'fb'.
	* video/i386/pc/vbeutil.c: Moved from here ...
	* video/fb/fbutil.c: ..here. Replaced 'vbe' with 'fb'.
	* include/grub/i386/pc/vbeblit.h: Moved from here ...
	* include/grub/fbblit.h: ... here. Replaced 'vbe' with 'fb'.
	* include/grub/i386/pc/vbefill.h: Moved from here ...
	* include/grub/fbfill.h: ... here. Replaced 'vbe' with 'fb'.
	* include/grub/i386/pc/vbeutil.h: Moved from here ...
	* include/grub/fbutil.h: ... here. Replaced 'vbe' with 'fb'.
	* include/grub/i386/pc/vbe.h: Moved framebuffer part ...
	* include/grub/video_fb.h: ... here. Replaced 'vbe' with 'fb'.
	* include/grub/video.h (GRUB_VIDEO_RENDER_TARGET_FRONT_BUFFER): Removed.
	(GRUB_VIDEO_RENDER_TARGET_BACK_BUFFER): Likewise.
	(grub_video_adapter): Added 'get_info_and_fini'.
	(grub_video_get_info_and_fini): New prototype.
	(grub_video_set_mode): make modestring const char *.
	* loader/i386/linux.c (grub_linux_setup_video): Use
	grub_video_get_info_and_fini.
	(grub_linux_boot): Move modesetting just before booting.
	* loader/i386/pc/xnu.c (grub_xnu_set_video): Use
	grub_video_get_info_and_fini.
	* video/i386/pc/vbe.c: Moved framebuffer part ...
	* video/fb/video_fb.c: ... here. Replaced 'vbe' with 'fb'.
	* video/i386/pc/vbe.c (grub_vbe_set_video_mode): Use
	grub_video_fbstd_colors and grub_video_fb_set_palette.
	(grub_video_vbe_init): Clear 'framebuffer' variable and use
	grub_video_fb_init.
	(grub_video_vbe_fini): Use grub_video_fb_fini.
	(grub_video_vbe_setup): Use framebuffer.render_target instead of
	render_target and use grub_video_fb_set_active_render_target and
	grub_video_fb_set_palette.
	(grub_video_vbe_set_palette): Use grub_video_fb_set_palette.
	(grub_video_vbe_set_viewport): Use grub_video_fb_set_viewport.
	(grub_video_vbe_adapter): Use framebuffer.
	* video/video.c (grub_video_get_info_and_fini): New function.
	(grub_video_set_mode): Make modestring const char *.
	(GRUB_MOD_INIT(video_video)): Don't set variables to 0 since these
	values are already initialised.

    Migrate to GNU General Public License Version 3.

    * COPYING: Replaced with the plain text version of GPLv3.

    * config.guess: Updated from gnulib.
    * config.sub: Likewise.

    * geninit.sh: Output a GPLv3 copyright notice.
    * geninitheader.sh: Likewise.
    * genmodsrc.sh: Likewise.
    * gensymlist.sh.in: Likewise.

    * boot/i386/pc/boot.S: Upgraded to GPLv3.
    * boot/i386/pc/diskboot.S: Likewise.
    * boot/i386/pc/pxeboot.S: Likewise.
    * commands/blocklist.c: Likewise.
    * commands/boot.c: Likewise.
    * commands/cat.c: Likewise.
    * commands/cmp.c: Likewise.
    * commands/configfile.c: Likewise.
    * commands/echo.c: Likewise.
    * commands/help.c: Likewise.
    * commands/ls.c: Likewise.
    * commands/search.c: Likewise.
    * commands/terminal.c: Likewise.
    * commands/test.c: Likewise.
    * commands/videotest.c: Likewise.
    * commands/i386/cpuid.c: Likewise.
    * commands/i386/pc/halt.c: Likewise.
    * commands/i386/pc/play.c: Likewise.
    * commands/i386/pc/reboot.c: Likewise.
    * commands/i386/pc/vbeinfo.c: Likewise.
    * commands/i386/pc/vbetest.c: Likewise.
    * commands/ieee1275/halt.c: Likewise.
    * commands/ieee1275/reboot.c: Likewise.
    * commands/ieee1275/suspend.c: Likewise.
    * disk/loopback.c: Likewise.
    * disk/lvm.c: Likewise.
    * disk/raid.c: Likewise.
    * disk/efi/efidisk.c: Likewise.
    * disk/i386/pc/biosdisk.c: Likewise.
    * disk/ieee1275/ofdisk.c: Likewise.
    * font/manager.c: Likewise.
    * fs/affs.c: Likewise.
    * fs/ext2.c: Likewise.
    * fs/fat.c: Likewise.
    * fs/fshelp.c: Likewise.
    * fs/hfs.c: Likewise.
    * fs/hfsplus.c: Likewise.
    * fs/iso9660.c: Likewise.
    * fs/jfs.c: Likewise.
    * fs/minix.c: Likewise.
    * fs/sfs.c: Likewise.
    * fs/ufs.c: Likewise.
    * fs/xfs.c: Likewise.
    * hello/hello.c: Likewise.
    * include/grub/acorn_filecore.h: Likewise.
    * include/grub/arg.h: Likewise.
    * include/grub/bitmap.h: Likewise.
    * include/grub/boot.h: Likewise.
    * include/grub/cache.h: Likewise.
    * include/grub/device.h: Likewise.
    * include/grub/disk.h: Likewise.
    * include/grub/dl.h: Likewise.
    * include/grub/elfload.h: Likewise.
    * include/grub/env.h: Likewise.
    * include/grub/err.h: Likewise.
    * include/grub/file.h: Likewise.
    * include/grub/font.h: Likewise.
    * include/grub/fs.h: Likewise.
    * include/grub/fshelp.h: Likewise.
    * include/grub/gzio.h: Likewise.
    * include/grub/hfs.h: Likewise.
    * include/grub/kernel.h: Likewise.
    * include/grub/loader.h: Likewise.
    * include/grub/lvm.h: Likewise.
    * include/grub/misc.h: Likewise.
    * include/grub/mm.h: Likewise.
    * include/grub/net.h: Likewise.
    * include/grub/normal.h: Likewise.
    * include/grub/parser.h: Likewise.
    * include/grub/partition.h: Likewise.
    * include/grub/pc_partition.h: Likewise.
    * include/grub/raid.h: Likewise.
    * include/grub/rescue.h: Likewise.
    * include/grub/script.h: Likewise.
    * include/grub/setjmp.h: Likewise.
    * include/grub/symbol.h: Likewise.
    * include/grub/term.h: Likewise.
    * include/grub/terminfo.h: Likewise.
    * include/grub/tparm.h: Likewise.
    * include/grub/types.h: Likewise.
    * include/grub/video.h: Likewise.
    * include/grub/efi/api.h: Likewise.
    * include/grub/efi/chainloader.h: Likewise.
    * include/grub/efi/console.h: Likewise.
    * include/grub/efi/console_control.h: Likewise.
    * include/grub/efi/disk.h: Likewise.
    * include/grub/efi/efi.h: Likewise.
    * include/grub/efi/pe32.h: Likewise.
    * include/grub/efi/time.h: Likewise.
    * include/grub/i386/linux.h: Likewise.
    * include/grub/i386/setjmp.h: Likewise.
    * include/grub/i386/types.h: Likewise.
    * include/grub/i386/efi/kernel.h: Likewise.
    * include/grub/i386/efi/loader.h: Likewise.
    * include/grub/i386/efi/time.h: Likewise.
    * include/grub/i386/pc/biosdisk.h: Likewise.
    * include/grub/i386/pc/boot.h: Likewise.
    * include/grub/i386/pc/chainloader.h: Likewise.
    * include/grub/i386/pc/console.h: Likewise.
    * include/grub/i386/pc/init.h: Likewise.
    * include/grub/i386/pc/kernel.h: Likewise.
    * include/grub/i386/pc/loader.h: Likewise.
    * include/grub/i386/pc/memory.h: Likewise.
    * include/grub/i386/pc/multiboot.h: Likewise.
    * include/grub/i386/pc/serial.h: Likewise.
    * include/grub/i386/pc/time.h: Likewise.
    * include/grub/i386/pc/vbe.h: Likewise.
    * include/grub/i386/pc/vbeblit.h: Likewise.
    * include/grub/i386/pc/vbefill.h: Likewise.
    * include/grub/i386/pc/vbeutil.h: Likewise.
    * include/grub/i386/pc/vga.h: Likewise.
    * include/grub/ieee1275/ieee1275.h: Likewise.
    * include/grub/ieee1275/ofdisk.h: Likewise.
    * include/grub/powerpc/libgcc.h: Likewise.
    * include/grub/powerpc/setjmp.h: Likewise.
    * include/grub/powerpc/types.h: Likewise.
    * include/grub/powerpc/ieee1275/biosdisk.h: Likewise.
    * include/grub/powerpc/ieee1275/console.h: Likewise.
    * include/grub/powerpc/ieee1275/ieee1275.h: Likewise.
    * include/grub/powerpc/ieee1275/kernel.h: Likewise.
    * include/grub/powerpc/ieee1275/loader.h: Likewise.
    * include/grub/powerpc/ieee1275/multiboot.h: Likewise.
    * include/grub/powerpc/ieee1275/time.h: Likewise.
    * include/grub/powerpc/ieee1275/util/biosdisk.h: Likewise.
    * include/grub/sparc64/libgcc.h: Likewise.
    * include/grub/sparc64/setjmp.h: Likewise.
    * include/grub/sparc64/types.h: Likewise.
    * include/grub/sparc64/ieee1275/console.h: Likewise.
    * include/grub/sparc64/ieee1275/ieee1275.h: Likewise.
    * include/grub/sparc64/ieee1275/kernel.h: Likewise.
    * include/grub/sparc64/ieee1275/time.h: Likewise.
    * include/grub/util/biosdisk.h: Likewise.
    * include/grub/util/getroot.h: Likewise.
    * include/grub/util/lvm.h: Likewise.
    * include/grub/util/misc.h: Likewise.
    * include/grub/util/raid.h: Likewise.
    * include/grub/util/resolve.h: Likewise.
    * io/gzio.c: Likewise.
    * kern/device.c: Likewise.
    * kern/disk.c: Likewise.
    * kern/dl.c: Likewise.
    * kern/elf.c: Likewise.
    * kern/env.c: Likewise.
    * kern/err.c: Likewise.
    * kern/file.c: Likewise.
    * kern/fs.c: Likewise.
    * kern/loader.c: Likewise.
    * kern/main.c: Likewise.
    * kern/misc.c: Likewise.
    * kern/mm.c: Likewise.
    * kern/parser.c: Likewise.
    * kern/partition.c: Likewise.
    * kern/rescue.c: Likewise.
    * kern/term.c: Likewise.
    * kern/efi/efi.c: Likewise.
    * kern/efi/init.c: Likewise.
    * kern/efi/mm.c: Likewise.
    * kern/i386/dl.c: Likewise.
    * kern/i386/efi/init.c: Likewise.
    * kern/i386/efi/startup.S: Likewise.
    * kern/i386/pc/init.c: Likewise.
    * kern/i386/pc/lzo1x.S: Likewise.
    * kern/i386/pc/startup.S: Likewise.
    * kern/ieee1275/ieee1275.c: Likewise.
    * kern/powerpc/cache.S: Likewise.
    * kern/powerpc/dl.c: Likewise.
    * kern/powerpc/ieee1275/cmain.c: Likewise.
    * kern/powerpc/ieee1275/crt0.S: Likewise.
    * kern/powerpc/ieee1275/init.c: Likewise.
    * kern/powerpc/ieee1275/openfw.c: Likewise.
    * kern/sparc64/cache.S: Likewise.
    * kern/sparc64/dl.c: Likewise.
    * kern/sparc64/ieee1275/init.c: Likewise.
    * kern/sparc64/ieee1275/openfw.c: Likewise.
    * loader/efi/chainloader.c: Likewise.
    * loader/efi/chainloader_normal.c: Likewise.
    * loader/i386/efi/linux.c: Likewise.
    * loader/i386/efi/linux_normal.c: Likewise.
    * loader/i386/pc/chainloader.c: Likewise.
    * loader/i386/pc/chainloader_normal.c: Likewise.
    * loader/i386/pc/linux.c: Likewise.
    * loader/i386/pc/linux_normal.c: Likewise.
    * loader/i386/pc/multiboot.c: Likewise.
    * loader/i386/pc/multiboot_normal.c: Likewise.
    * loader/powerpc/ieee1275/linux.c: Likewise.
    * loader/powerpc/ieee1275/linux_normal.c: Likewise.
    * normal/arg.c: Likewise.
    * normal/cmdline.c: Likewise.
    * normal/command.c: Likewise.
    * normal/completion.c: Likewise.
    * normal/execute.c: Likewise.
    * normal/function.c: Likewise.
    * normal/lexer.c: Likewise.
    * normal/main.c: Likewise.
    * normal/menu.c: Likewise.
    * normal/menu_entry.c: Likewise.
    * normal/misc.c: Likewise.
    * normal/parser.y: Likewise.
    * normal/script.c: Likewise.
    * normal/i386/setjmp.S: Likewise.
    * normal/powerpc/setjmp.S: Likewise.
    * normal/sparc64/setjmp.S: Likewise.
    * partmap/acorn.c: Likewise.
    * partmap/amiga.c: Likewise.
    * partmap/apple.c: Likewise.
    * partmap/gpt.c: Likewise.
    * partmap/pc.c: Likewise.
    * partmap/sun.c: Likewise.
    * term/gfxterm.c: Likewise.
    * term/terminfo.c: Likewise.
    * term/efi/console.c: Likewise.
    * term/i386/pc/console.c: Likewise.
    * term/i386/pc/serial.c: Likewise.
    * term/i386/pc/vesafb.c: Likewise.
    * term/i386/pc/vga.c: Likewise.
    * term/ieee1275/ofconsole.c: Likewise.
    * util/biosdisk.c: Likewise.
    * util/console.c: Likewise.
    * util/genmoddep.c: Likewise.
    * util/getroot.c: Likewise.
    * util/grub-emu.c: Likewise.
    * util/grub-mkdevicemap.c: Likewise.
    * util/grub-probe.c: Likewise.
    * util/lvm.c: Likewise.
    * util/misc.c: Likewise.
    * util/raid.c: Likewise.
    * util/resolve.c: Likewise.
    * util/update-grub.in: Likewise.
    * util/update-grub_lib.in: Likewise.
    * util/grub.d/00_header.in: Likewise.
    * util/grub.d/10_hurd.in: Likewise.
    * util/grub.d/10_linux.in: Likewise.
    * util/i386/efi/grub-install.in: Likewise.
    * util/i386/efi/grub-mkimage.c: Likewise.
    * util/i386/pc/grub-install.in: Likewise.
    * util/i386/pc/grub-mkimage.c: Likewise.
    * util/i386/pc/grub-mkrescue.in: Likewise.
    * util/i386/pc/grub-setup.c: Likewise.
    * util/i386/pc/misc.c: Likewise.
    * util/powerpc/ieee1275/grub-install.in: Likewise.
    * util/powerpc/ieee1275/grub-mkimage.c: Likewise.
    * util/powerpc/ieee1275/misc.c: Likewise.
    * video/bitmap.c: Likewise.
    * video/video.c: Likewise.
    * video/i386/pc/vbe.c: Likewise.
    * video/i386/pc/vbeblit.c: Likewise.
    * video/i386/pc/vbefill.c: Likewise.
    * video/i386/pc/vbeutil.c: Likewise.
    * video/readers/tga.c: Likewise.

	* include/grub/bitmap.h: New file.

	* include/grub/i386/pc/vbeutil.h: Likewise.

	* video/bitmap.c: Likewise.

	* video/readers/tga.c: Likewise.

	* video/i386/pc/vbeutil.c: Likewise.

	* commands/videotest.c: Code cleanup and updated to reflect to new
	video API.

	* term/gfxterm.c: Likewise.

	* video/video.c: Likewise.

	* conf/i386-pc.rmk (pkgdata_MODULES): Added tga.mod and bitmap.mod.
	(vbe_mod_SOURCES): Added video/i386/pc/vbeutil.c.
	(bitmap_mod_SOURCES): New entry.
	(bitmap_mod_CFLAGS): Likewise.
	(bitmap_mod_LDFLAGS): Likewise.
	(tga_mod_SOURCES): Likewise.
	(tga_mod_CFLAGS): Likewise.
	(tga_mod_LDFLAGS): Likewise.

	* include/grub/video.h (grub_video_blit_operators): New enum type.
	(grub_video_render_target): Changed as forward declaration and moved
	actual definition to be video driver specific.
	(grub_video_adapter.blit_bitmap): Added blitting operator.
	(grub_video_adapter.blit_render_target): Likewise.
	(grub_video_blit_bitmap): Likewise.
	(grub_video_blit_render_target): Likewise.

	* include/grub/i386/pc/vbe.h (grub_video_render_target): Added
	driver specific render target definition.
	(grub_video_vbe_map_rgba): Added driver internal helper.
	(grub_video_vbe_unmap_color): Updated to use
	grub_video_i386_vbeblit_info.
	(grub_video_vbe_get_video_ptr): Likewise.

	* include/grub/i386/pc/vbeblit.h
	(grub_video_i386_vbeblit_R8G8B8A8_R8G8B8A8): Updated to use
	grub_video_i386_vbeblit_info.
	(grub_video_i386_vbeblit_R8G8B8_R8G8B8A8): Likewise.
	(grub_video_i386_vbeblit_index_R8G8B8A8): Likewise.
	(grub_video_i386_vbeblit_R8G8B8A8_R8G8B8): Likewise.
	(grub_video_i386_vbeblit_R8G8B8_R8G8B8): Likewise.
	(grub_video_i386_vbeblit_index_R8G8B8): Likewise.
	(grub_video_i386_vbeblit_index_index): Likewise.
	(grub_video_i386_vbeblit_R8G8B8X8_R8G8B8X8): New blitter function.
	(grub_video_i386_vbeblit_R8G8B8_R8G8B8X8): Likewise.
	(grub_video_i386_vbeblit_index_R8G8B8X8): Likewise.
	(grub_video_i386_vbeblit_blend): Added generic blitter for blend
	operator.
	(grub_video_i386_vbeblit_replace): Added generic blitter for replace
	operator.

	* video/i386/pc/vbeblit.c: Updated to reflect changes on
	include/grub/i386/pc/vbeblit.h.

	* include/grub/i386/pc/vbefill.h (grub_video_i386_vbefill_R8G8B8A8):
	Updated to use grub_video_i386_vbeblit_info.
	(grub_video_i386_vbefill_R8G8B8): Likewise.
	(grub_video_i386_vbefill_index): Likewise.
	(grub_video_i386_vbefill): Added generic filler.

	* video/i386/pc/vbefill.c: Updated to reflect changes on
	include/grub/i386/pc/vbefill.h.

	* video/i386/pc/vbe.c (grub_video_vbe_get_video_ptr): Updated to use
	grub_video_i386_vbeblit_info.
	(grub_video_vbe_unmap_color): Likewise.
	(grub_video_vbe_blit_glyph): Likewise.
	(grub_video_vbe_scroll): Likewise.
	(grub_video_vbe_draw_pixel): Removed function.
	(grub_video_vbe_get_pixel): Likewise.
	(grub_video_vbe_fill_rect): Moved all blitters to vbefill.c and
	updated code to use it.
	(common_blitter): Added common blitter for render target and bitmap.
	(grub_video_vbe_blit_bitmap): Updated to use common_blitter.
	(grub_video_vbe_blit_render_target): Likewise.

        * DISTLIST: Added include/grub/i386/pc/vbeblit.h,
        include/grub/i386/pc/vbefill.h, video/i386/pc/vbeblit.c,
        video/i386/pc/vbefill.c.

        * conf/i386-pc.rmk (vbe_mod_SOURCES): Added video/i386/pc/vbeblit.c,
        video/i386/pc/vbefill.c.

        * include/grub/video.h (grub_video_blit_format): New enum.
        (grub_video_mode_info): Added new member blit_format.
        (grub_video_get_blit_format): New function prototype.

        * include/grub/i386/pc/vbe.h (grub_video_vbe_get_video_ptr): New
        function prototype.
        (grub_video_vbe_map_rgb): Likewise.
        (grub_video_vbe_unmap_color): Likewise.

        * include/grub/i386/pc/vbeblit.h: New file.

        * include/grub/i386/pc/vbefill.h: New file.

        * video/video.c (grub_video_get_blit_format): New function.
        (grub_video_vbe_get_video_ptr): Re-declared as non-static.
        (grub_video_vbe_map_rgb): Likewise.
        (grub_video_vbe_unmap_color): Likewise.

        * video/i386/pc/vbe.c (grub_video_vbe_fill_rect): Changed to use more
        optimized fills.
        (grub_video_vbe_blit_render_target): Changed to use more optimized
        blits.
        (grub_video_vbe_setup): Added detection for optimized settings.
        (grub_video_vbe_create_render_target): Likewise.

        * video/i386/pc/vbeblit.c: New file.

        * video/i386/pc/vbefill.c: New file.