cmhw: Add ColorBalance impl for the LiveDisplay native interface

Change-Id: I34ee71d8b0c23f460434dc13cb997af72f38183e

2 files changed, 96 insertions, 1 deletions

diff --git a/org/cyanogenmod/hardware/ColorBalance.java b/org/cyanogenmod/hardware/ColorBalance.java
new file mode 100644
index 0000000..08b1e84
--- /dev/null
+++ b/org/cyanogenmod/hardware/ColorBalance.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.cyanogenmod.hardware;
+
+/**
+ * Color balance support
+ *
+ * Color balance controls allow direct adjustment of display color temperature
+ * using a range of values. A zero implies no adjustment, negative values
+ * move towards warmer temperatures, and positive values move towards
+ * cool temperatures.
+ */
+public class ColorBalance {
+
+    private static final boolean sHasNativeSupport =
+            LiveDisplayVendorImpl.hasNativeFeature(LiveDisplayVendorImpl.COLOR_BALANCE);
+
+    /**
+     * Whether device supports color balance control
+     *
+     * @return boolean Supported devices must return always true
+     */
+    public static boolean isSupported() {
+        return sHasNativeSupport;
+    }
+
+    /**
+     * This method returns the current color balance value
+     *
+     * @return int Zero when no adjustment is made, negative values move
+     * towards warmer temperatures, positive values move towards cooler temperatures.
+     */
+    public static int getValue() {
+        if (sHasNativeSupport) {
+            return LiveDisplayVendorImpl.native_getColorBalance();
+        }
+        return 0;
+    }
+
+    /**
+     * This method allows to set the display color  balance
+     *
+     * @param value
+     * @return boolean Must be false if feature is not supported or the operation
+     * failed; true in any other case.
+     */
+    public static boolean setValue(int value) {
+        if (sHasNativeSupport) {
+            return LiveDisplayVendorImpl.native_setColorBalance(value);
+        }
+        return false;
+    }
+
+    /**
+     * Get the minimum allowed color adjustment value
+     * @return int
+     */
+    public static int getMinValue() {
+        if (sHasNativeSupport) {
+            return LiveDisplayVendorImpl.native_getColorBalanceMin();
+        }
+        return 0;
+    }
+
+    /**
+     * Get the maximum allowed color adjustment value
+     * @return int
+     */
+    public static int getMaxValue() {
+        if (sHasNativeSupport) {
+            return LiveDisplayVendorImpl.native_getColorBalanceMax();
+        }
+        return 0;
+    }
+}
diff --git a/org/cyanogenmod/hardware/LiveDisplayVendorImpl.java b/org/cyanogenmod/hardware/LiveDisplayVendorImpl.java
index 7b3709c..8f885d3 100644
--- a/org/cyanogenmod/hardware/LiveDisplayVendorImpl.java
+++ b/org/cyanogenmod/hardware/LiveDisplayVendorImpl.java
@@ -28,7 +28,7 @@ public class LiveDisplayVendorImpl {
     public static final String TAG = "LiveDisplayVendorImpl";
 
     public static final int DISPLAY_MODES = 0x1;
-    public static final int COLOR_TEMPERATURE = 0x2;
+    public static final int COLOR_BALANCE = 0x2;
     public static final int OUTDOOR_MODE = 0x4;
     public static final int ADAPTIVE_BACKLIGHT = 0x8;
 
@@ -67,4 +67,10 @@ public class LiveDisplayVendorImpl {
 
     public static native boolean native_setOutdoorModeEnabled(boolean enabled);
     public static native boolean native_isOutdoorModeEnabled();
+
+    public static native int native_getColorBalanceMin();
+    public static native int native_getColorBalanceMax();
+    public static native int native_getColorBalance();
+    public static native boolean native_setColorBalance(int value);
+
 }