From f0eba83644cce42fc7aebc88bf890930a14be82a Mon Sep 17 00:00:00 2001
From: Grazvydas Ignotas <notasas@gmail.com>
Date: Wed, 17 Oct 2012 00:47:59 +0300
Subject: [PATCH] op_gamma: implement switching to user-default gamma

---
 recipes/pandora-system/pandora-scripts.bb     |  2 +-
 .../pandora-scripts/op_gamma.sh               | 21 ++++++++++++-------
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/recipes/pandora-system/pandora-scripts.bb b/recipes/pandora-system/pandora-scripts.bb
index 599c3b9..32430e8 100644
--- a/recipes/pandora-system/pandora-scripts.bb
+++ b/recipes/pandora-system/pandora-scripts.bb
@@ -6,7 +6,7 @@ COMPATIBLE_MACHINE = "omap3-pandora"
 DEPENDS = "zenity dbus"
 RDEPENDS = "zenity dbus"
 
-PR = "r118"
+PR = "r119"
 
 SRC_URI = " \
           file://op_paths.sh \
diff --git a/recipes/pandora-system/pandora-scripts/op_gamma.sh b/recipes/pandora-system/pandora-scripts/op_gamma.sh
index 14440b2..7ac4892 100755
--- a/recipes/pandora-system/pandora-scripts/op_gamma.sh
+++ b/recipes/pandora-system/pandora-scripts/op_gamma.sh
@@ -7,14 +7,21 @@ if [ ! -e "$SYSFS_DSS_GAMMA" ]; then
   exit 1
 fi
 
-if [ "$1" = "0" ]; then
-  # set default gamma
-  # TODO: we could set some user global setting here instead
-  echo 0 > $SYSFS_DSS_GAMMA
-  exit 0
+gamma="$@"
+
+if [ "$gamma" = "0" ]; then
+  # set user default gamma
+  gamma="1"
+  if [ -f /etc/pandora/conf/dssgamma.state ]; then
+    dssgamma=$(cat /etc/pandora/conf/dssgamma.state)
+    dssgamma=$(echo "scale=2;$dssgamma / 100" | bc)
+    if [ -n "$dssgamma" ]; then
+      gamma=$dssgamma
+    fi
+  fi
 fi
 
-if [ "$1" = "1" ]; then
+if [ "$gamma" = "1" -o "$gamma" = "1.00" ]; then
   # no gamma adjustment
   echo 0 > $SYSFS_DSS_GAMMA
   exit 0
@@ -26,4 +33,4 @@ if [ "`which op_gammatable`" = "" ]; then
 fi
 
 # just forward args to op_gammatable
-op_gammatable "$@" > /sys/devices/platform/omapdss/display0/dss_gamma
+op_gammatable $gamma > $SYSFS_DSS_GAMMA
-- 
2.39.2