lineage-sdk: Add backend for reading enhancement

Change-Id: Ibd1c9e057ddf8e9d21657aef0ebeeaa9a253e92d

5 files changed, 47 insertions, 4 deletions

diff --git a/sdk/src/java/lineageos/hardware/ILineageHardwareService.aidl b/sdk/src/java/lineageos/hardware/ILineageHardwareService.aidl
index cca87244..aaa1ce50 100644
--- a/sdk/src/java/lineageos/hardware/ILineageHardwareService.aidl
+++ b/sdk/src/java/lineageos/hardware/ILineageHardwareService.aidl
@@ -1,6 +1,6 @@
 /**
- * Copyright (c) 2015, The CyanogenMod Project
- *               2017 The LineageOS Project
+ * Copyright (c) 2015-2016 The CyanogenMod Project
+ *               2017-2018 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -65,4 +65,6 @@ interface ILineageHardwareService {
 
     TouchscreenGesture[] getTouchscreenGestures();
     boolean setTouchscreenGestureEnabled(in TouchscreenGesture gesture, boolean state);
+
+    boolean setGrayscale(boolean state);
 }
diff --git a/sdk/src/java/lineageos/hardware/LineageHardwareManager.java b/sdk/src/java/lineageos/hardware/LineageHardwareManager.java
index ae0ece65..c58b1c90 100644
--- a/sdk/src/java/lineageos/hardware/LineageHardwareManager.java
+++ b/sdk/src/java/lineageos/hardware/LineageHardwareManager.java
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2015-2016 The CyanogenMod Project
- *               2017 The LineageOS Project
+ *               2017-2018 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -135,6 +135,12 @@ public final class LineageHardwareManager {
     public static final int FEATURE_DISPLAY_MODES = 0x2000;
 
     /**
+     * Reading mode
+     */
+    @VisibleForTesting
+    public static final int FEATURE_READING_ENHANCEMENT = 0x4000;
+
+    /**
      * Color balance
      */
     @VisibleForTesting
@@ -868,4 +874,19 @@ public final class LineageHardwareManager {
         }
         return false;
     }
+
+    /**
+     * Enables or disables reading mode
+     *
+     * @return true if success
+     */
+    public boolean setGrayscale(boolean state) {
+        try {
+            if (checkService()) {
+                return sService.setGrayscale(state);
+            }
+        } catch (RemoteException e) {
+        }
+        return false;
+    }
 }
diff --git a/sdk/src/java/lineageos/hardware/LiveDisplayManager.java b/sdk/src/java/lineageos/hardware/LiveDisplayManager.java
index 28238494..17e142ef 100644
--- a/sdk/src/java/lineageos/hardware/LiveDisplayManager.java
+++ b/sdk/src/java/lineageos/hardware/LiveDisplayManager.java
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2016 The CyanogenMod Project
+ *               2018 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -120,6 +121,11 @@ public class LiveDisplayManager {
      */
     public static final int FEATURE_PICTURE_ADJUSTMENT = 17;
 
+    /**
+     * System supports grayscale matrix overlay
+     */
+    public static final int FEATURE_READING_ENHANCEMENT = 18;
+
     public static final int ADJUSTMENT_HUE = 0;
     public static final int ADJUSTMENT_SATURATION = 1;
     public static final int ADJUSTMENT_INTENSITY = 2;
diff --git a/sdk/src/java/lineageos/providers/LineageSettings.java b/sdk/src/java/lineageos/providers/LineageSettings.java
index 7a5feabe..ac48c996 100644
--- a/sdk/src/java/lineageos/providers/LineageSettings.java
+++ b/sdk/src/java/lineageos/providers/LineageSettings.java
@@ -1450,6 +1450,16 @@ public final class LineageSettings {
                 sBooleanValidator;
 
         /**
+         * Reader mode
+         * 0 = 0ff, 1 = on
+         */
+        public static final String DISPLAY_READING_MODE = "display_reading_mode";
+
+        /** @hide */
+        public static final Validator DISPLAY_READING_MODE_VALIDATOR =
+                sBooleanValidator;
+
+        /**
          * Use display power saving features such as CABC or CABL
          * 0 = 0ff, 1 = on
          */
@@ -2058,6 +2068,7 @@ public final class LineageSettings {
                 LineageSettings.System.DISPLAY_TEMPERATURE_NIGHT,
                 LineageSettings.System.DISPLAY_TEMPERATURE_MODE,
                 LineageSettings.System.DISPLAY_AUTO_OUTDOOR_MODE,
+                LineageSettings.System.DISPLAY_READING_MODE,
                 LineageSettings.System.DISPLAY_CABC,
                 LineageSettings.System.DISPLAY_COLOR_ENHANCE,
                 LineageSettings.System.DISPLAY_COLOR_ADJUSTMENT,
@@ -2216,6 +2227,7 @@ public final class LineageSettings {
             VALIDATORS.put(DISPLAY_TEMPERATURE_MODE, DISPLAY_TEMPERATURE_MODE_VALIDATOR);
             VALIDATORS.put(DISPLAY_AUTO_CONTRAST, DISPLAY_AUTO_CONTRAST_VALIDATOR);
             VALIDATORS.put(DISPLAY_AUTO_OUTDOOR_MODE, DISPLAY_AUTO_OUTDOOR_MODE_VALIDATOR);
+            VALIDATORS.put(DISPLAY_READING_MODE, DISPLAY_READING_MODE_VALIDATOR);
             VALIDATORS.put(DISPLAY_CABC, DISPLAY_CABC_VALIDATOR);
             VALIDATORS.put(DISPLAY_COLOR_ENHANCE, DISPLAY_COLOR_ENHANCE_VALIDATOR);
             VALIDATORS.put(DISPLAY_COLOR_ADJUSTMENT, DISPLAY_COLOR_ADJUSTMENT_VALIDATOR);
diff --git a/sdk/src/java/org/lineageos/internal/logging/LineageMetricsLogger.java b/sdk/src/java/org/lineageos/internal/logging/LineageMetricsLogger.java
index e75a5e43..5b7d7009 100644
--- a/sdk/src/java/org/lineageos/internal/logging/LineageMetricsLogger.java
+++ b/sdk/src/java/org/lineageos/internal/logging/LineageMetricsLogger.java
@@ -1,5 +1,6 @@
 /**
- * Copyright (c) 2016, The CyanogenMod Project
+ * Copyright (c) 2016 The CyanogenMod Project
+ *               2018 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -69,4 +70,5 @@ public class LineageMetricsLogger extends MetricsLogger {
     public static final int WEATHER_SETTINGS = BASE + 42;
     public static final int TILE_THEMES = BASE + 43;
     public static final int TILE_LOCATION_DETAIL = BASE + 44;
+    public static final int TILE_READING_MODE = BASE + 45;
 }