Apparently it is the case.
Please test/apply.
Thanks
Michal
=== modified file 'video/fb/video_fb.c'
--- video/fb/video_fb.c 2010-02-03 00:24:07 +0000
+++ video/fb/video_fb.c 2010-02-16 23:44:09 +0000
@@ -985,6 +985,13 @@ grub_video_fb_scroll (grub_video_color_t
linedelta = target.mode_info->pitch
- width * target.mode_info->bytes_per_pixel;
linelen = width * target.mode_info->bytes_per_pixel;
+ if (dy > 0 || (dy == 0 && dx > 0))
+ {
+ src_x += width - 1;
+ dst_x += width - 1;
+ src_y += height - 1;
+ dst_y += height - 1;
+ }
#define DO_SCROLL \
/* Check vertical direction of the move. */ \
if (dy < 0 || (dy == 0 && dx < 0)) \
@@ -1006,11 +1013,9 @@ grub_video_fb_scroll (grub_video_color_t
{ \
/* 3b. Move data downwards. */ \
dst = (void *) grub_video_fb_get_video_ptr (&target, \
- dst_x + width - 1, \
- dst_y + height - 1); \
+ dst_x, dst_y); \
src = (void *) grub_video_fb_get_video_ptr (&target, \
- src_x + width - 1, \
- src_y + height - 1); \
+ src_x, src_y); \
for (j = 0; j < height; j++) \
{ \
for (i = 0; i < linelen; i++) \
_______________________________________________
Grub-devel mailing list
Grub-devel@gnu.org
http://lists.gnu.org/mailman/listinfo/grub-devel
