* font/manager.c (unknown_glyph): Added variable for unknown glyph.
(fill_with_default_glyph): Changed to use unknown_glyph for fill
pattern for unknown glyphs.
* include/grub/video.h: Added grub_video_unmap_color and
grub_video_get_active_render_target.
(grub_video_adapter): Added unmap_color and get_active_render_target.
* video/video.c: Added grub_video_unmap_color and
grub_video_get_active_render_target.
(grub_video_get_info): Changed method to accept NULL pointer as an
argument to allow detection of active video adapter.
* video/i386/pc/vbe.c: Renamed grub_video_vbe_unmap_color as
grub_video_vbe_unmap_color_int.
Added grub_video_vbe_unmap_color and
grub_video_vbe_get_active_render_target.
(grub_video_vbe_adapter): Added unmap_color and
get_active_render_target.
* video/i386/pc/vbeblit.c: Replaced grub_video_vbe_unmap_color usage
with grub_video_vbe_unmap_color_int.
* term/gfxterm.c (DEFAULT_STANDARD_COLOR): Added.
(DEFAULT_NORMAL_COLOR): Likewise.
(DEFAULT_HIGHLIGHT_COLOR) Likewise.
(DEFAULT_FG_COLOR): Removed.
(DEFAULT_BG_COLOR): Likewise.
(DEFAULT_CURSOR_COLOR): Changed value.
(grub_virtual_screen): Added standard_color_setting,
normal_color_setting, highlight_color_setting and term_color.
(grub_virtual_screen): Removed fg_color_setting and bg_color_setting.
(bitmap_width): Added.
(bitmap_height): Likewise.
(bitmap): Likewise.
(set_term_color): Likewise.
(grub_virtual_screen_setup): Changed to use new terminal coloring
settings.
(grub_gfxterm_init): Added init for bitmap.
(grub_gfxterm_fini): Added destroy for bitmap.
(redraw_screen_rect): Updated to use background bitmap and new
terminal coloring.
(scroll_up): Added optimization for case when there is no bitmap.
(grub_gfxterm_cls): Fixed to use correct background color.
(grub_virtual_screen_setcolorstate): Changed to use new terminal
coloring.
(grub_virtual_screen_setcolor): Likewise.
(grub_virtual_screen_getcolor): Added.
(grub_gfxterm_background_image_cmd): Likewise.
(grub_video_term): Added setcolor and getcolor.
(MOD_INIT): Added registration of background_image command.
(MOD_TERM): Added unregistration for background_image command.
* disk/i386/pc/biosdisk.c (struct grub_biosdisk_drp): Moved to ...
(struct grub_biosdisk_dap): Likewise.
* include/grub/i386/pc/biosdisk.h: ... to here. Also corrected
linkage settings for all functions.
* include/grub/script.h (grub_script_cmdif): Renamed field 'bool' to
'exec_to_evaluate'. Renamed field 'true' to 'exec_on_true'. Renamed
field 'false' to 'exec_on_false'.
(grub_script_create_cmdif): Renamed argument names to reflect above
changes.
* normal/execute.c (grub_script_execute_cmdif): Likewise.
* normal/script.c (grub_script_create_cmdif): 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.
* font/manager.c (grub_font_get_glyph): Removed font fixup from
here...
* util/unifont2pff.rb: ... and moved it to here. Improved argument
parsing to support both hex and dec ranges. If filename was missing
show usage information.
* kern/err.c (grub_error_push): Added new function to support error
stacks.
(grub_error_pop): Likewise.
(grub_error_stack_items): New local variable to support error stacks.
(grub_error_stack_pos): Likewise.
(grub_error_stack_assert): Likewise.
(GRUB_ERROR_STACK_SIZE): Added new define to configure maximum error
stack depth.
(grub_print_error): Added support to print errors from error stack.
* include/grub/err.h (grub_error_push): Added function prototype.
(grub_error_pop): Likewise.