add configuration options for brightness and disable for rM1

README.md

@@ -57,13 +57,18 @@ Remember to run `toltecctl reenable` on your reMarkable tablet after each softwa
 - `-l --landscape` Snapshot has now the landscape orientation.
 - `-d --display` Force program to display the snapshot. (overwrites environment variable)
 - `-n --no-display` Force program to not display the snapshot.
+- `-c --og-color` Turn off color correction (color correction is only active for the reMarkable2)
 - `-v --version` Displays version.
 - `-h --help` Displays help information.
 
 ## Environment Variables
 
 - `REMARKABLE_IP` Default IP of your reMarkable.
-- `RESNAP_DISPLAY` Default behavior of reSnap. See option `-d and -n`.
+- `RESNAP_DISPLAY` Default behavior of displaying the snapshot. See options `-d` and `-n`.
+- `RESNAP_COLOR_CORRECTION` Default behavior of color correction on the reMarkable2. See option `-c`.
+
+`RESNAP_DISPLAY` and `RESNAP_COLOR_CORRECTION` are boolean parameters.
+Everything other than `true` is interpreted as `false`!
 
 ### Disclaimer
 

reSnap.sh

@@ -13,7 +13,8 @@ ip="${REMARKABLE_IP:-10.11.99.1}"
 output_file="$tmp_dir/snapshot_$(date +%F_%H-%M-%S).png"
 delete_output_file="true"
 display_output_file="${RESNAP_DISPLAY:-true}"
-filters="curves=all=0.045/0 0.06/1"
+color_correction="${RESNAP_COLOR_CORRECTION:-true}"
+filters="null"
 
 # parsing arguments
 while [ $# -gt 0 ]; do
@@ -41,6 +42,10 @@ while [ $# -gt 0 ]; do
     display_output_file="false"
     shift
     ;;
+  -c | --og-color)
+    color_correction="false"
+    shift
+    ;;
   -v | --version)
     echo "$0 version $version"
     exit 0
@@ -52,16 +57,21 @@ while [ $# -gt 0 ]; do
     echo "  $0 -l                 # snapshot in landscape"
     echo "  $0 -s 192.168.2.104   # snapshot over wifi"
     echo "  $0 -o snapshot.png    # saves the snapshot in the current directory"
-    echo "  $0 -d                 # force display the file (requires feh)"
-    echo "  $0 -n                 # force don't display the file"
+    echo "  $0 -d                 # display the file"
+    echo "  $0 -n                 # don't display the file"
+    echo "  $0 -c                 # no color correction (reMarkable2)"
     echo "  $0 -v                 # displays version"
     echo "  $0 -h                 # displays help information (this)"
     exit 2
     ;;
   esac
 done
 
-if [ "$delete_output_file" = "true" ] && [ "$display_output_file" = "true" ]; then
+if [ "$display_output_file" != "true" ]; then
+  delete_output_file="false"
+fi
+
+if [ "$delete_output_file" = "true" ]; then
   # delete temporary file on exit
   trap 'rm -f $output_file' EXIT
 fi
@@ -138,6 +148,11 @@ elif [ "$rm_version" = "reMarkable 2.0" ]; then
   # rotate by 90 degrees to the right
   filters="$filters,transpose=2"
 
+  # color correction
+  if [ "$color_correction" = "true" ]; then
+    filters="$filters,curves=all=0.045/0 0.06/1"
+  fi
+
 else
 
   echo "$rm_version not supported"