mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 17:24:17 +08:00
c9e587abfd
A command that causes a line feed while a background color is active, such as perl -e 'print "x" x 60, "\e[44m", "x" x 40, "\e[0m\n"' and perl -e 'print "x" x 40, "\e[44m\n", "x" x 40, "\e[0m\n"' causes the line that was started as a result of the line feed to be completely filled with the currently active background color instead of the default color. When scrolling, part of the current screen is memcpy'd/memmove'd to the new region, and the new line(s) that will appear as a result are cleared using memset. However, the lines are cleared with vc->vc_video_erase_char, causing them to be colored with the currently active background color. This is different from X11 terminal emulators which always paint the new lines with the default background color (e.g. `xterm -bg black`). The clear operation (\e[1J and \e[2J) also use vc_video_erase_char, so a new vc->vc_scrl_erase_char is introduced with contains the erase character used for scrolling, which is built from vc->vc_def_color instead of vc->vc_color. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
---|---|---|
.. | ||
bitblit.c | ||
dummycon.c | ||
fbcon_ccw.c | ||
fbcon_cw.c | ||
fbcon_rotate.c | ||
fbcon_rotate.h | ||
fbcon_ud.c | ||
fbcon.c | ||
fbcon.h | ||
font_6x11.c | ||
font_7x14.c | ||
font_8x8.c | ||
font_8x16.c | ||
font_10x18.c | ||
font_acorn_8x8.c | ||
font_mini_4x6.c | ||
font_pearl_8x8.c | ||
font_sun8x16.c | ||
font_sun12x22.c | ||
fonts.c | ||
Kconfig | ||
Makefile | ||
mdacon.c | ||
newport_con.c | ||
prom.uni | ||
promcon.c | ||
softcursor.c | ||
sticon.c | ||
sticore.c | ||
tileblit.c | ||
vgacon.c |