From 633f8e0d5009a9ef97da4acc78b8a7d14cb38aac Mon Sep 17 00:00:00 2001
From: Byunghun Jeon <bjeon@codeaurora.org>
Date: Tue, 24 May 2016 16:53:56 -0700
Subject: SnapdragonCamera: Add redeye reduction

Add redeye reduction to Camera2

Change-Id: Iae4beb9287a0a927330ba987238fac6a2dae058e
CRs-Fixed: 1018118
---
 src/com/android/camera/CaptureModule.java   |  2 +-
 src/com/android/camera/CaptureUI.java       |  1 +
 src/com/android/camera/SettingsManager.java | 20 ++++++++++++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/com/android/camera/CaptureModule.java b/src/com/android/camera/CaptureModule.java
index 2b28f9946..feef31fec 100644
--- a/src/com/android/camera/CaptureModule.java
+++ b/src/com/android/camera/CaptureModule.java
@@ -2038,7 +2038,7 @@ public class CaptureModule implements CameraModule, PhotoController,
                         .FLASH_MODE_OFF);
                 break;
             case CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH:
-                if (redeye.equals("disable")) {
+                if (redeye != null && redeye.equals("disable")) {
                     request.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest
                             .CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE);
                 }
diff --git a/src/com/android/camera/CaptureUI.java b/src/com/android/camera/CaptureUI.java
index 5b8ecad6e..3d766fa37 100644
--- a/src/com/android/camera/CaptureUI.java
+++ b/src/com/android/camera/CaptureUI.java
@@ -96,6 +96,7 @@ public class CaptureUI implements FocusOverlayManager.FocusUI,
             SettingsManager.KEY_MAKEUP
     };
     String[] mDeveloperKeys = new String[]{
+            SettingsManager.KEY_REDEYE_REDUCTION,
             SettingsManager.KEY_MONO_ONLY,
             SettingsManager.KEY_CLEARSIGHT,
             SettingsManager.KEY_MONO_PREVIEW
diff --git a/src/com/android/camera/SettingsManager.java b/src/com/android/camera/SettingsManager.java
index f3a228562..3a5f6f705 100644
--- a/src/com/android/camera/SettingsManager.java
+++ b/src/com/android/camera/SettingsManager.java
@@ -36,6 +36,7 @@ import android.graphics.Rect;
 import android.hardware.camera2.CameraAccessException;
 import android.hardware.camera2.CameraCharacteristics;
 import android.hardware.camera2.CameraManager;
+import android.hardware.camera2.CameraMetadata;
 import android.hardware.camera2.params.StreamConfigurationMap;
 import android.util.Log;
 import android.util.Range;
@@ -491,6 +492,7 @@ public class SettingsManager implements ListMenu.SettingsListener {
         ListPreference clearsight = mPreferenceGroup.findPreference(KEY_CLEARSIGHT);
         ListPreference monoPreview = mPreferenceGroup.findPreference(KEY_MONO_PREVIEW);
         ListPreference monoOnly = mPreferenceGroup.findPreference(KEY_MONO_ONLY);
+        ListPreference redeyeReduction = mPreferenceGroup.findPreference(KEY_REDEYE_REDUCTION);
 
         if (whiteBalance != null) {
             CameraSettings.filterUnsupportedOptions(mPreferenceGroup,
@@ -529,7 +531,11 @@ public class SettingsManager implements ListMenu.SettingsListener {
             if (clearsight != null) removePreference(mPreferenceGroup, KEY_CLEARSIGHT);
             if (monoPreview != null) removePreference(mPreferenceGroup, KEY_MONO_PREVIEW);
             if (monoOnly != null) removePreference(mPreferenceGroup, KEY_MONO_ONLY);
+        }
 
+        if (redeyeReduction != null) {
+            CameraSettings.filterUnsupportedOptions(mPreferenceGroup,
+                    redeyeReduction, getSupportedRedeyeReduction(cameraId));
         }
     }
 
@@ -682,6 +688,20 @@ public class SettingsManager implements ListMenu.SettingsListener {
         return res;
     }
 
+    private List<String> getSupportedRedeyeReduction(int cameraId) {
+        int[] flashModes = mCharacteristics.get(cameraId).get(CameraCharacteristics
+                .CONTROL_AE_AVAILABLE_MODES);
+        List<String> modes = new ArrayList<>();
+        for (int i = 0; i < flashModes.length; i++) {
+            if (flashModes[i] == CameraMetadata.CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE) {
+                modes.add("disable");
+                modes.add("enable");
+                break;
+            }
+        }
+        return modes;
+    }
+
     private List<String> getSupportedWhiteBalanceModes(int cameraId) {
         int[] whiteBalanceModes = mCharacteristics.get(cameraId).get(CameraCharacteristics
                 .CONTROL_AWB_AVAILABLE_MODES);
-- 
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