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Preliminary pixel doubling code added.

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This commit is contained in:
Simon Long
2017-11-29 10:14:03 +00:00
committed by Serge Schneider
parent 7529c44d53
commit 9500dc0377
1 changed files with 64 additions and 2 deletions
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66
raspi-config
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@@ -287,6 +287,66 @@ do_overscan() {
fi
}
get_pixdub() {
FBW=$(get_config_var framebuffer_width $CONFIG)
if [ $FBW -eq 0 ]; then
echo 1
else
echo 0
fi
}
is_number() {
case $1 in
''|*[!0-9]*) return 0 ;;
*) return 1 ;;
esac
}
do_pixdub() {
DEFAULT=--defaultno
CURRENT=0
if [ $(get_pixdub) -eq 0 ]; then
DEFAULT=
CURRENT=1
fi
if [ "$INTERACTIVE" = True ]; then
whiptail --yesno "Would you like to enable pixel doubling?" $DEFAULT 20 60 2
RET=$?
else
RET=$1
fi
if [ $RET -eq 0 ] ; then
XVAL=$(xrandr 2>&1 | grep current | cut -f2 -d, | cut -f3 -d' ')
YVAL=$(xrandr 2>&1 | grep current | cut -f2 -d, | cut -f5 -d' ')
if is_number $XVAL || is_number $YVAL ; then
if [ "$INTERACTIVE" = True ]; then
whiptail --msgbox "Could not read current screen dimensions - unable to enable pixel doubling" 20 60 1
fi
return 1
fi
NEWX=`expr $XVAL / 2`
NEWY=`expr $YVAL / 2`
set_config_var framebuffer_width $NEWX $CONFIG
set_config_var framebuffer_height $NEWY $CONFIG
set_config_var scaling_kernel 8 $CONFIG
STATUS=enabled
elif [ $RET -eq 1 ]; then
clear_config_var framebuffer_width $CONFIG
clear_config_var framebuffer_height $CONFIG
clear_config_var scaling_kernel $CONFIG
STATUS=disabled
else
return $RET
fi
if [ $RET -eq $CURRENT ]; then
ASK_TO_REBOOT=1
fi
if [ "$INTERACTIVE" = True ]; then
whiptail --msgbox "Pixel doubling is $STATUS" 20 60 1
fi
}
do_change_pass() {
whiptail --msgbox "You will now be asked to enter a new password for the $SUDO_USER user" 20 60 1
passwd $SUDO_USER &&
@@ -1632,7 +1692,8 @@ do_advanced_menu() {
"A3 Memory Split" "Change the amount of memory made available to the GPU" \
"A4 Audio" "Force audio out through HDMI or 3.5mm jack" \
"A5 Resolution" "Set a specific screen resolution" \
"A6 GL Driver" "Enable/Disable experimental desktop GL driver" \
"A6 Pixel Doubling" "Enable/Disable 2x2 pixel mapping" \
"A7 GL Driver" "Enable/Disable experimental desktop GL driver" \
3>&1 1>&2 2>&3)
RET=$?
if [ $RET -eq 1 ]; then
@@ -1644,7 +1705,8 @@ do_advanced_menu() {
A3\ *) do_memory_split ;;
A4\ *) do_audio ;;
A5\ *) do_resolution ;;
A6\ *) do_gldriver ;;
A6\ *) do_pixdub ;;
A7\ *) do_gldriver ;;
*) whiptail --msgbox "Programmer error: unrecognized option" 20 60 1 ;;
esac || whiptail --msgbox "There was an error running option $FUN" 20 60 1
fi