Re: [GITGRUB] New menu interface (implementation)

[Bean]

Hi,

Update:

Merge grub_menu_region_create_rect into
grub_menu_region_create_bitmap, it first tries to load the bitmap, if
it fails, fallback to rect. To create pure rect, just set the filename
to NULL.

Adjust video fb function, exports grub_video_fbfill and
grub_video_fbblit as they're useful for bitmap to bitmap blit.

Extends bitmap scaling support, here is some sample code from menu_test.c:

r3 = grub_menu_region_create_bitmap (w, h, "/r3.png",
                                       GRUB_VIDEO_BITMAP_SCALE_TYPE_TILING,
                                       get_color ("red", 1), ' ');

It supports the following scaling type:

GRUB_VIDEO_BITMAP_SCALE_TYPE_NORMAL
Scale image to dest size

GRUB_VIDEO_BITMAP_SCALE_TYPE_CENTER
No scaling, draw the image at the center of dest. could leave blanks
or truncate the image.

GRUB_VIDEO_BITMAP_SCALE_TYPE_TILING
No scaling, fill the whole dest area with tiling.

GRUB_VIDEO_BITMAP_SCALE_TYPE_MINFIT
Keep ratio scaling, it ensures the whole image is displayed (could
leave blanks at the margin)

GRUB_VIDEO_BITMAP_SCALE_TYPE_MAXFIT
Keep ratio scaling, no blanks at the margin, but the image could be truncated.

It can optionally OR with a constant that indicate the scaling
algorithm, values are:


GRUB_VIDEO_BITMAP_SCALE_METHOD_FASTEST (default)
GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST
GRUB_VIDEO_BITMAP_SCALE_METHOD_NEAREST
GRUB_VIDEO_BITMAP_SCALE_METHOD_BILINEAR 

---
Bean

gitgrub home: http://github.com/grub/grub/
my fork page: http://github.com/bean123/grub/